CN112792410B

CN112792410B - Cutting device for steel plate machining

Info

Publication number: CN112792410B
Application number: CN202110038235.XA
Authority: CN
Inventors: 黄秋霞
Original assignee: Zhejiang Tianyi Steel Structure Co ltd
Current assignee: Zhejiang Tianyi Steel Structure Co Ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2022-09-02
Anticipated expiration: 2041-01-12
Also published as: CN112792410A

Abstract

A cutting device for processing a steel plate relates to the field of steel plate processing, and comprises an operation table, a cutting chamber, a cutter, automatic measuring equipment, a controller and a moving roller; the cutting chamber is arranged on the operating platform, and the feeding end and the discharging end are open; the movable roller is rotationally arranged on the operating platform; the cutter and the automatic measuring equipment are arranged in the cutting chamber; the device also comprises a feeding component and a dustproof component; the feeding assembly is arranged on the operating platform and is close to the feeding end of the cutting chamber; the dustproof assembly is arranged on the cutter. The feeding assembly is arranged to fix the steel plate, so that the stable state of the steel plate in the cutting process is ensured, the cutting error is reduced, the material is automatically fed, and the working efficiency is improved; the dust-proof component of the equipment prevents dust from flying, and waste water is recycled, so that the purposes of environmental protection and energy saving are achieved; the cutting end of the positioning assembly for positioning the steel plate is arranged, so that the moving track of the steel plate is guaranteed, and the cutting accuracy is improved.

Description

Cutting device for steel plate machining

Technical Field

The invention relates to the field of steel plate processing, in particular to a cutting device for steel plate processing.

Background

The steel sheet is a flat steel sheet which is cast with molten steel, cooled, and pressed. The width of the thin plate is 500-1500 mm; the thickness is 600-3000 mm. The thin plates are classified according to steel types, such as common steel, high-quality steel, alloy steel, spring steel, stainless steel, tool steel, heat-resistant steel, bearing steel, silicon steel, industrial pure iron thin plates and the like; according to the professional application, the plate can be used for oil tanks, enamel plates, bulletproof plates and the like; the coating layer is divided into a galvanized sheet, a tinned sheet, a lead-plated sheet, a plastic composite steel plate and the like. When the steel plate is machined, the steel plate needs to be cut, the steel plate is generally fed manually and is cut by a cutter, the steel plate is easy to move, the cutting effect is influenced, dust flies during cutting, certain air pollution is caused, and the steel plate is not beneficial to the health of workers.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides a cutting device for processing a steel plate. The feeding assembly is arranged to fix the steel plate, so that the stable state of the steel plate in the cutting process is ensured, the cutting error is reduced, the steel plate is automatically fed, and the working efficiency is improved; the dust-proof component of the equipment prevents dust from flying, and waste water is recycled, so that the purposes of environmental protection and energy saving are achieved; the cutting end of the positioning assembly for positioning the steel plate is arranged, so that the moving track of the steel plate is guaranteed, and the cutting accuracy is improved.

(II) technical scheme

In order to solve the problems, the invention provides a cutting device for processing a steel plate, which comprises an operation table, a cutting chamber, a cutter, automatic measuring equipment, a controller and a moving roller, wherein the operation table is used for carrying out cutting operation on the steel plate; the cutting chamber is arranged on the operating platform, and the feeding end and the discharging end are open; the movable roller is rotationally arranged on the operating platform; the cutter and the automatic measuring equipment are arranged in the cutting chamber; the device also comprises a feeding component and a dustproof component; the feeding assembly is arranged on the operating platform and is close to the feeding end of the cutting chamber; the dustproof assembly is arranged on the cutter; the feeding assembly comprises a first driving motor, a first clamping frame, a first moving piece, a first lead screw, a second clamping frame and a first threaded rod; a first lead screw driven by a first driving motor is rotationally arranged on the operating platform; the first clamping frame is in threaded connection with a first lead screw through a first moving piece, and a first clamping groove is formed in one end, facing the cutting chamber, of the first clamping frame; the two groups of second clamping frames are respectively arranged at two ends of the first clamping frame in a sliding manner, and second clamping grooves are formed in the opposite ends of the two groups of second clamping frames; one end of the first threaded rod is in threaded connection with the first clamping frame, and the other end of the first threaded rod extends into the first clamping groove and is rotationally connected with the second clamping frame on the corresponding side; the dustproof assembly comprises a first driving cylinder, a lifting seat, a telescopic rod, a second driving motor, a second lead screw, a dustproof cover, a mounting seat, a second moving piece, a third driving motor, a third lead screw, a guide rod, a first trigger block, a second trigger block, a guide seat, a spray head, a water pipe and a water storage tank; the upper end of the first driving cylinder is connected with the top of the cutting chamber, and the lower end of the first driving cylinder is connected with the lifting seat; a second lead screw driven by a second driving motor is rotationally arranged on the lifting seat; the upper end of the telescopic rod extends into the lifting seat and is in threaded connection with the second lead screw, and the lower end of the telescopic rod extends into the dust cover and is connected with the mounting seat; a third screw driven by a third driving motor is rotatably arranged on the mounting seat; the cutter which moves horizontally is in threaded connection with a third lead screw through a second moving piece; the guide seat is arranged on the dust cover and is connected with the telescopic rod in a sliding manner, and a guide groove is formed in the guide seat; the second trigger block is arranged at the bottom of the guide groove; the upper end of the guide rod is connected with the lifting seat, and the lower end of the guide rod extends into the guide groove and is provided with a first trigger block; the shower nozzle sets up in the inside of dust cover, and leads to pipe and water storage box intercommunication.

Preferably, the feeding assembly further comprises a fixing piece; the fixing piece comprises an anti-skid wheel, a fixing plate, a second threaded rod and a rotating plate; the top of the first clamping groove is provided with a fixed groove; the anti-skid wheels are rotatably arranged in the fixed grooves, and the lower ends of the anti-skid wheels are connected with the steel plates in a sliding manner; the fixed plate is arranged at the upper end of the anti-skid wheel; the upper end of the second threaded rod is connected with the rotating plate, the middle end of the second threaded rod is in threaded connection with the first clamping frame, and the lower end of the second threaded rod extends into the fixing groove and is in rotating connection with the fixing plate.

Preferably, the outer part of the antiskid wheel is provided with an antiskid pad.

Preferably, the first clamping frame and the second clamping frame form a U-shaped structure.

Preferably, a first elastic buffer piece is arranged in the guide groove; two ends of the first elastic buffer piece are respectively positioned at the peripheries of the first trigger block and the second trigger block.

Preferably, a mounting plate is arranged on the cutting chamber; a reflux groove communicated with the mounting plate is arranged on the operating platform; the dustproof assembly also comprises a filter cartridge, a return pipe and a water pump; the filter cartridge is positioned in the reflux groove and is detachably arranged on the mounting plate; the return pipe is communicated with the return tank and the water storage tank; the water pump is arranged on the return pipe.

Preferably, the device further comprises a positioning component; the positioning assembly is arranged between the feeding assembly and the dustproof assembly and comprises a mounting frame, a fourth driving motor, a rotating shaft, a rotating belt, a positioning piece and a connecting piece; the mounting rack is arranged inside the cutting chamber and stretches across the upper part of the steel plate; two groups of rotating shafts are arranged through transmission of a fourth driving motor, and the two groups of rotating shafts are rotatably arranged at two ends of the mounting rack; the rotating belts are sleeved on the two groups of rotating shafts and synchronously rotate along with the rotating shafts; the two groups of connecting pieces are respectively connected with the upper layer and the lower layer of the rotating belt; the positioning pieces are arranged in two groups and are connected with the connecting pieces in a one-to-one correspondence mode.

Preferably, the positioning piece comprises an upper positioning plate, a lower positioning plate, a rotating roller and a second driving cylinder; the upper positioning plate is connected to the lower end of the connecting piece and is provided with a sliding chute; the upper end of the rotating roller extends into the chute, is rotatably connected with the upper positioning plate, and the lower end of the rotating roller is connected with the lower positioning plate; the second drives actuating cylinder and sets up between last locating plate and lower locating plate.

Preferably, a rotating rod and a second elastic buffer piece are further arranged in the sliding groove; the upper end of the rotating rod is connected with the top of the sliding chute, and the lower end of the rotating rod is connected with the rotating roller in a sliding manner; the second elastic buffer member is arranged at the periphery of the rotating rod.

The invention also provides a steel plate cutting method, which comprises the following steps:

s1, placing the steel plate on an operation table;

s2, clamping one end of the steel plate in a first clamping groove of the feeding assembly, rotating the first threaded rod, moving the second clamping frame towards the steel plate until two sides of the second clamping frame are clamped in the second clamping groove, and simultaneously operating the fixing piece to enable the fixing plate to clamp the anti-skidding wheel;

s3, operating the positioning assembly, rotating the rotating belt to drive the positioning piece to move towards the steel plate, lifting the steel plate to be placed on the lower positioning plate and clamped with the rotating roller;

s4, the feeding assembly works, the first driving motor drives the first lead screw to rotate, the first clamping frame moves towards the cutting chamber at a constant speed, the lower positioning plate and the rotating roller rotate synchronously, and the steel plate moves towards the discharging end;

s5, measuring the length of the moving steel plate by automatic measuring equipment until the moving steel plate reaches a set size, sending a signal to a controller, pausing a feeding assembly, pulling down an upper positioning plate by a second driving cylinder, and clamping the steel plate;

s6, the dustproof assembly works, the first driving cylinder drives the lifting seat to descend, the dustproof cover abuts against the steel plate, the guide rod slides downwards until the first trigger block and the second trigger block are contacted, the first driving cylinder receives a trigger signal and stops, the second driving motor and the third driving motor receive the trigger signal and start, the cutter moves up and down and left and right, and cutting is started;

s7, when cutting, the spray head sprays water towards the cutting end, and the waste water is filtered by the filter cartridge and then returns to the water storage tank;

s8, conveying the cut steel plate away from the device through a moving roller;

and S9, the device enters the next cutting process.

The technical scheme of the invention has the following beneficial technical effects:

the feeding assembly is arranged, the first clamping frame is matched with the second clamping frame to fix the steel plate, the steel plate is further prevented from sliding down through adjustment of the fixing piece, the stable state of the steel plate in the cutting process is guaranteed, the cutting error is reduced, meanwhile, the first clamping frame moves horizontally at a constant speed under the driving of the first driving motor, automatic feeding is realized, the workload of workers is reduced, and the working efficiency is improved;

the dust-proof assembly of the equipment disclosed by the invention is lifted through the dust-proof cover to form a closed cutting space, so that dust is prevented from flying, the dust is further adsorbed in a water spraying manner, the purpose of environmental protection is achieved, waste water is recycled, and the purpose of energy conservation is achieved;

and in a moving state, the lower positioning plate and the rotating roller rotate, so that the steel plate moves smoothly, the moving track of the steel plate is ensured, and the cutting accuracy is improved.

Drawings

Fig. 1 is a schematic structural diagram of a cutting device for processing a steel plate according to the present invention.

Fig. 2 is a schematic view of an internal structure of a cutting apparatus for processing a steel plate according to the present invention.

Fig. 3 is a cross-sectional view illustrating a connection relationship between a first engaging frame and a second engaging frame in the cutting apparatus for processing a steel plate according to the present invention.

Fig. 4 is a schematic structural diagram of a fixing member in a cutting device for processing a steel plate according to the present invention.

Fig. 5 is an enlarged view of a position a of the cutting device for processing a steel plate according to the present invention.

Fig. 6 is a sectional view of a cutting apparatus for processing a steel plate according to the present invention at a position a.

Fig. 7 is an enlarged view of a portion B of the cutting apparatus for processing a steel plate according to the present invention.

Fig. 8 is a sectional view of a positioning assembly in a cutting apparatus for processing a steel plate according to the present invention.

Fig. 9 is a side sectional view of a positioning assembly in a cutting apparatus for processing a steel plate according to the present invention.

Fig. 10 is an enlarged cross-sectional view of a cutting device for processing a steel plate according to the present invention at position C.

The attached drawings are marked as follows: 1. an operation table; 2. a cutting chamber; 3. a cutter; 4. an automatic measuring device; 5. a controller; 6. a feeding assembly; 7. a dust-proof assembly; 8. a positioning assembly; 9. a moving roller; 10. a first drive motor; 11. a first engaging frame; 12. a first moving member; 13. a first lead screw; 14. a second engaging frame; 15. a first threaded rod; 16. a fixing member; 17. anti-skid wheels; 18. a fixing plate; 19. a second threaded rod; 20. a rotating plate; 21. a first driving cylinder; 22. a lifting seat; 23. a telescopic rod; 24. a second drive motor; 25. a second lead screw; 26. a dust cover; 27. a mounting seat; 28. a second moving member; 29. a third drive motor; 30. a third lead screw; 31. a guide bar; 32. a return pipe; 33. a first trigger block; 34. a first elastic buffer member; 35. a second trigger block; 36. a guide seat; 37. a spray head; 38. a water pipe; 39. mounting a plate; 40. a filter cartridge; 41. a water storage tank; 42. a mounting frame; 43. a fourth drive motor; 44. a rotating shaft; 45. a rotating belt; 46. a positioning member; 47. a connecting member; 48. an upper positioning plate; 49. a lower positioning plate; 50. a rotating roller; 51. a second driving cylinder; 52. rotating the rod; 53. a second elastomeric cushion.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Implement 1

As shown in fig. 1 to 7, the cutting apparatus for processing a steel plate according to the present invention includes an operation table 1, a cutting chamber 2, a cutter 3, an automatic measuring device 4, a controller 5, and a moving roller 9; the cutting chamber 2 is arranged on the operating platform 1, and the feeding end and the discharging end are open; the moving roller 9 is rotatably arranged on the operating platform 1; the cutter 3 and the automatic measuring device 4 are arranged in the cutting chamber 2; the device also comprises a feeding component 6 and a dustproof component 7; the feeding assembly 6 is arranged on the operating platform 1 and is close to the feeding end of the cutting chamber 2; the dustproof assembly 7 is arranged on the cutter 3; the feeding assembly 6 comprises a first driving motor 10, a first clamping frame 11, a first moving piece 12, a first lead screw 13, a second clamping frame 14 and a first threaded rod 15; a first lead screw 13 driven by a first driving motor 10 is rotationally arranged on the operating platform 1; the first clamping frame 11 is in threaded connection with a first lead screw 13 through a first moving piece 12, and a first clamping groove is formed in one end, facing the cutting chamber 2, of the first clamping frame 11; the two groups of second clamping frames 14 are arranged, the two groups of second clamping frames 14 are respectively arranged at two ends of the first clamping frame 11 in a sliding manner, and second clamping grooves are formed in opposite ends of the two groups of second clamping frames 14; one end of the first threaded rod 15 is in threaded connection with the first clamping frame 11, and the other end of the first threaded rod extends into the first clamping groove and is in rotary connection with the second clamping frame 14 on the corresponding side; the dustproof assembly 7 comprises a first driving cylinder 21, a lifting seat 22, an expansion rod 23, a second driving motor 24, a second lead screw 25, a dustproof cover 26, an installation seat 27, a second moving piece 28, a third driving motor 29, a third lead screw 30, a guide rod 31, a first trigger block 33, a second trigger block 35, a guide seat 36, a spray head 37, a water pipe 38 and a water storage tank 41; the upper end of the first driving cylinder 21 is connected with the top of the cutting chamber 2, and the lower end is connected with the lifting seat 22; a second lead screw 25 driven by a second driving motor 24 is rotatably arranged on the lifting seat 22; the upper end of the telescopic rod 23 extends into the lifting seat 22 and is in threaded connection with the second lead screw 25, and the lower end of the telescopic rod extends into the dust cover 26 and is connected with the mounting seat 27; a third lead screw 30 driven by a third driving motor 29 is rotatably arranged on the mounting seat 27; the cutter 3 which moves horizontally is in threaded connection with a third lead screw 30 through a second moving piece 28; the guide seat 36 is arranged on the dust cover 26 and is connected with the telescopic rod 23 in a sliding manner, and a guide groove is formed in the guide seat 36; the second trigger block 35 is arranged at the bottom of the guide groove; the upper end of the guide rod 31 is connected with the lifting seat 22, the lower end of the guide rod extends into the guide groove, and a first trigger block 33 is arranged; the spray head 37 is disposed inside the dust cover 26 and communicates with the water reservoir 41 through the water pipe 38.

In an alternative embodiment, the feeding assembly 6 further comprises a fixing member 16; the fixed part 16 comprises an anti-skid wheel 17, a fixed plate 18, a second threaded rod 19 and a rotating plate 20; the top of the first clamping groove is provided with a fixed groove; the anti-skid wheels 17 are rotatably arranged in the fixed grooves, and the lower ends of the anti-skid wheels are connected with the steel plates in a sliding manner; the fixing plate 18 is arranged at the upper end of the antiskid wheel 17; the upper end of the second threaded rod 19 is connected with the rotating plate 20, the middle end is connected with the first clamping frame 11 in a threaded mode, and the lower end extends into the fixing groove and is connected with the fixing plate 18 in a rotating mode.

In an alternative embodiment, the outer portion of the non-slip wheel 17 is provided with a non-slip mat.

In an alternative embodiment, the first engaging frame 11 and the second engaging frame 14 form a U-shaped structure.

In an alternative embodiment, a first elastomeric dampener 34 is disposed within the guide slot; both ends of the first elastic buffer 34 are located at the peripheries of the first trigger block 33 and the second trigger block 35, respectively.

In an alternative embodiment, the cutting chamber 2 is provided with a mounting plate 39; the operation table 1 is provided with a reflux groove communicated with the mounting plate 39; the dustproof assembly 7 also comprises a filter cartridge 40, a return pipe 32 and a water pump; the filter cartridge 40 is positioned in the reflux groove and is detachably arranged on the mounting plate 39; the return pipe 32 communicates the return tank with the reservoir 41; the water pump is arranged on the return pipe 32.

The feeding assembly 6 is arranged, the first clamping frame 11 is matched with the second clamping frame 14 to fix the steel plate, the steel plate is further prevented from sliding down by adjusting the fixing piece 16, the stable state of the steel plate in the cutting process is ensured, the cutting error is reduced, and meanwhile, the first clamping frame 11 moves horizontally at a constant speed under the driving of the first driving motor 10, so that the feeding is automatic, the workload of workers is reduced, and the working efficiency is improved; the dustproof assembly 7 of the equipment is lifted through the dustproof cover 26 to form a closed cutting space, dust is prevented from flying, dust is further adsorbed in a water spraying mode, the purpose of environmental protection is achieved, waste water is recycled, and the purpose of energy conservation is achieved.

Example 2

As shown in fig. 8-10, further includes a positioning assembly 8; the positioning assembly 8 is arranged between the feeding assembly 6 and the dustproof assembly 7 and comprises a mounting frame 42, a fourth driving motor 43, a rotating shaft 44, a rotating belt 45, a positioning piece 46 and a connecting piece 47; the mounting frame 42 is arranged inside the cutting chamber 2 and spans the upper part of the steel plate; two groups of rotating shafts 44 driven by the fourth driving motor 43 are arranged, and the two groups of rotating shafts 44 are rotatably arranged at two ends of the mounting rack 42; the rotating belts 45 are sleeved on the two groups of rotating shafts 44 and synchronously rotate along with the rotating shafts; two groups of connecting pieces 47 are arranged, and the two groups of connecting pieces 47 are respectively connected with the upper layer and the lower layer of the rotating belt 45; the positioning members 46 are arranged in two groups and are connected with the connecting members 47 in a one-to-one correspondence manner.

In an alternative embodiment, the positioning member 46 includes an upper positioning plate 48, a lower positioning plate 49, a rotating roller 50, and a second driving cylinder 51; the upper positioning plate 48 is connected with the lower end of the connecting piece 47, and a sliding groove is arranged on the upper positioning plate 48; the upper end of the rotating roller 50 extends into the chute, is rotatably connected with the upper positioning plate 48, and the lower end is connected with the lower positioning plate 49; a second drive cylinder 51 is provided between the upper positioning plate 48 and the lower positioning plate 49.

In an alternative embodiment, a rotating rod 52 and a second elastic buffer 53 are further disposed in the chute; the upper end of the rotating rod 52 is connected with the top of the chute, and the lower end is connected with the rotating roller 50 in a sliding manner; the second elastic buffer 53 is provided at the periphery of the rotating lever 52.

The invention is provided with the positioning component 8 which is matched with the feeding component 6 to position the cutting end of the steel plate in a cutting state, and the lower positioning plate 49 and the rotating roller 50 rotate in a moving state, so that the steel plate moves smoothly, the moving track of the steel plate is ensured, and the cutting accuracy is improved.

Example 3

s1, placing the steel plate on the operation table 1;

s2, clamping one end of the steel plate in a first clamping groove of the feeding assembly 6, rotating the first threaded rod 15, moving the second clamping frame 14 towards the steel plate until two sides of the second clamping frame are clamped in the second clamping groove, and simultaneously operating the fixing piece 16 to enable the fixing plate 18 to clamp the anti-skid wheel 17;

s3, operating the positioning assembly 8, rotating the rotating belt 45 to drive the positioning piece 46 to move towards the steel plate, and lifting the steel plate to be placed on the lower positioning plate 49 and clamped with the rotating roller 50;

s4, the feeding assembly 6 works, the first driving motor 10 drives the first lead screw 13 to rotate, the first clamping frame 11 moves towards the cutting chamber 2 at a constant speed, the lower positioning plate 49 and the rotating roller 50 rotate synchronously, and the steel plate moves towards the discharging end;

s5, the automatic measuring equipment 4 measures the length of the moving steel plate until the moving steel plate reaches a set size, a signal is sent to the controller 5, the feeding assembly 6 is stopped temporarily, the second driving air cylinder 51 pulls down the upper positioning plate 48, and the steel plate is clamped;

s6, the dustproof assembly 7 works, the first driving air cylinder 21 drives the lifting seat 22 to descend, the dustproof cover 26 abuts against a steel plate, the guide rod 31 slides downwards until the first trigger block 33 and the second trigger block 35 are contacted, the first driving air cylinder 21 receives a trigger signal and stops, the second driving motor 24 and the third driving motor 29 receive the trigger signal and start, and the cutter 3 moves up and down and left and right to start cutting;

s7, when cutting, the spray head 37 sprays water to the cutting end, and the waste water is filtered by the filter cylinder 40 and then returns to the water storage tank 41;

s8, conveying the cut steel plate away from the device through the moving roller 9;

and S9, the device enters the next cutting process.

The steel plate cutting method is simple to operate and high in intelligence, reduces the labor amount of workers and improves the working efficiency.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundary of the appended claims, or the equivalents of such scope and boundary.

Claims

1. A cutting device for processing a steel plate comprises an operation table (1), a cutting chamber (2), a cutter (3), automatic measuring equipment (4), a controller (5) and a moving roller (9); the cutting chamber (2) is arranged on the operating platform (1), and the feeding end and the discharging end are open; the moving roller (9) is rotationally arranged on the operating platform (1); the cutter (3) and the automatic measuring equipment (4) are arranged in the cutting chamber (2); the device is characterized by also comprising a feeding component (6), a dustproof component (7) and a positioning component (8); the feeding component (6) is arranged on the operating platform (1) and is close to the feeding end of the cutting chamber (2); the dustproof assembly (7) is arranged on the cutter (3); the positioning component (8) is arranged between the feeding component (6) and the dustproof component (7);

the feeding assembly (6) comprises a first driving motor (10), a first clamping frame (11), a first moving piece (12), a first lead screw (13), a second clamping frame (14) and a first threaded rod (15); a first lead screw (13) driven by a first driving motor (10) is rotationally arranged on the operating platform (1); the first clamping frame (11) is in threaded connection with a first lead screw (13) through a first moving piece (12), and a first clamping groove is formed in one end, facing the cutting chamber (2), of the first clamping frame (11); the two groups of second clamping frames (14) are arranged, the two groups of second clamping frames (14) are respectively arranged at two ends of the first clamping frame (11) in a sliding manner, and second clamping grooves are formed in opposite ends of the two groups of second clamping frames (14); one end of the first threaded rod (15) is in threaded connection with the first clamping frame (11), and the other end of the first threaded rod extends into the first clamping groove and is in rotary connection with the second clamping frame (14) on the corresponding side;

the feeding assembly (6) also comprises a fixing piece (16); the fixing piece (16) comprises an anti-skid wheel (17), a fixing plate (18), a second threaded rod (19) and a rotating plate (20); the top of the first clamping groove is provided with a fixed groove; the anti-skid wheels (17) are rotatably arranged in the fixed grooves, the lower ends of the anti-skid wheels are connected with the steel plates in a sliding mode, and anti-skid pads are arranged outside the anti-skid wheels; the fixing plate (18) is arranged at the upper end of the anti-skid wheel (17); the upper end of the second threaded rod (19) is connected with the rotating plate (20), the middle end of the second threaded rod is in threaded connection with the first clamping frame (11), and the lower end of the second threaded rod extends into the fixing groove and is rotationally connected with the fixing plate (18); the first clamping frame (11) and the second clamping frame (14) form a U-shaped structure;

the dustproof assembly (7) comprises a first driving cylinder (21), a lifting seat (22), an expansion rod (23), a second driving motor (24), a second lead screw (25), a dustproof cover (26), a mounting seat (27), a second moving piece (28), a third driving motor (29), a third lead screw (30), a guide rod (31), a first trigger block (33), a second trigger block (35), a guide seat (36), a spray head (37), a water pipe (38) and a water storage tank (41); the upper end of the first driving cylinder (21) is connected with the top of the cutting chamber (2), and the lower end is connected with the lifting seat (22); a second lead screw (25) driven by a second driving motor (24) is rotationally arranged on the lifting seat (22); the upper end of the telescopic rod (23) extends into the lifting seat (22) and is in threaded connection with the second lead screw (25), and the lower end of the telescopic rod extends into the dust cover (26) and is connected with the mounting seat (27); a third lead screw (30) driven by a third driving motor (29) is rotationally arranged on the mounting seat (27); the cutter (3) which moves horizontally is in threaded connection with a third lead screw (30) through a second moving piece (28); the guide seat (36) is arranged on the dust cover (26) and is connected with the telescopic rod (23) in a sliding manner, and a guide groove is formed in the guide seat (36); the second trigger block (35) is arranged at the bottom of the guide groove; the upper end of the guide rod (31) is connected with the lifting seat (22), the lower end of the guide rod extends into the guide groove, and a first trigger block (33) is arranged; the spray head (37) is arranged inside the dustproof cover (26) and is communicated with the water storage tank (41) through a water pipe (38); a first elastic buffer (34) is arranged in the guide groove; the two ends of the first elastic buffer (34) are respectively positioned at the peripheries of the first trigger block (33) and the second trigger block (35);

the cutting chamber (2) is provided with a mounting plate (39); a reflux groove communicated with the mounting plate (39) is arranged on the operating platform (1); the dustproof assembly (7) also comprises a filter cylinder (40), a return pipe (32) and a water pump; the filter cartridge (40) is positioned in the reflux groove and is detachably arranged on the mounting plate (39); the return pipe (32) is communicated with the return tank and the water storage tank (41); the water pump is arranged on the return pipe (32);

the positioning assembly (8) comprises a mounting frame (42), a fourth driving motor (43), a rotating shaft (44), a rotating belt (45), a positioning piece (46) and a connecting piece (47); the mounting frame (42) is arranged inside the cutting chamber (2) and spans over the steel plate; two groups of rotating shafts (44) driven by a fourth driving motor (43) are arranged, and the two groups of rotating shafts (44) are rotatably arranged at two ends of the mounting rack (42); the rotating belts (45) are sleeved on the two groups of rotating shafts (44) and synchronously rotate along with the rotating shafts; two groups of connecting pieces (47) are arranged, and the two groups of connecting pieces (47) are respectively connected with the upper layer and the lower layer of the rotating belt (45); two groups of positioning pieces (46) are arranged and are correspondingly connected with the connecting pieces (47) one by one;

the positioning piece (46) comprises an upper positioning plate (48), a lower positioning plate (49), a rotating roller (50) and a second driving cylinder (51); the upper positioning plate (48) is connected to the lower end of the connecting piece (47), and a sliding groove is formed in the upper positioning plate (48); the upper end of the rotating roller (50) extends into the sliding groove, and is rotatably connected with the upper positioning plate (48), and the lower end is connected with the lower positioning plate (49); the second driving cylinder (51) is arranged between the upper positioning plate (48) and the lower positioning plate (49);

a rotating rod (52) and a second elastic buffer piece (53) are also arranged in the sliding groove; the upper end of the rotating rod (52) is connected with the top of the sliding chute, and the lower end of the rotating rod is connected with the rotating roller (50) in a sliding manner; the second elastic buffer member (53) is provided on the outer periphery of the rotating lever (52).

2. A steel plate cutting method using the cutting apparatus for steel plate working according to claim 1, characterized by comprising the steps of:

s1, placing the steel plate on the operation table (1);

s2, clamping one end of the steel plate in a first clamping groove of the feeding assembly (6), rotating the first threaded rod (15), moving the second clamping frame (14) towards the steel plate until two sides of the second clamping frame are clamped in the second clamping groove, and simultaneously operating the fixing piece (16) to enable the fixing plate (18) to clamp the anti-skidding wheel (17);

s3, operating the positioning assembly (8), rotating the rotating belt (45), driving the positioning piece (46) to move towards the steel plate, lifting the steel plate, placing the steel plate on the lower positioning plate (49), and clamping the steel plate with the rotating roller (50);

s4, the feeding assembly (6) works, the first driving motor (10) drives the first lead screw (13) to rotate, the first clamping frame (11) moves towards the cutting chamber (2) at a constant speed, the lower positioning plate (49) and the rotating roller (50) rotate synchronously, and the steel plate moves towards the discharging end;

s5, the automatic measuring equipment (4) measures the length of the moving steel plate until the moving steel plate reaches a set size, a signal is sent to the controller (5), the feeding assembly (6) is suspended, the second driving cylinder (51) pulls down the upper positioning plate (48) to clamp the steel plate;

s6, the dustproof assembly (7) works, the first driving air cylinder (21) drives the lifting seat (22) to descend, the dustproof cover (26) abuts against the steel plate, the guide rod (31) slides downwards until the first trigger block (33) and the second trigger block (35) are contacted, the first driving air cylinder (21) receives a trigger signal and pauses, the second driving motor (24) and the third driving motor (29) receive the trigger signal and start, and the cutter (3) moves up and down and left and right to start cutting;

s7, when cutting, the spray head (37) sprays water towards the cutting end, and the waste water is filtered by the filter cartridge (40) and then returns to the water storage tank (41);

s8, conveying the cut steel plate away from the device through a moving roller (9);

and S9, the device enters the next cutting process.