CN111230200B

CN111230200B - Plate cutting device for numerical control machining and operation method thereof

Info

Publication number: CN111230200B
Application number: CN202010072493.5A
Authority: CN
Inventors: 赵寿宽; 龚君
Original assignee: Zhengde Polytechnic
Current assignee: Zhengde Polytechnic
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2021-01-29
Anticipated expiration: 2040-01-21
Also published as: CN111230200A

Abstract

The invention discloses a plate cutting device for numerical control machining and an operation method thereof. The invention has the beneficial effects that: drive the cutting piece rotation through the motor four times and cut to plate, the cover frame one of deuterogamying, cover frame two is respectively at cover slide rail one, the activity on cover slide rail two, adjust the position of cutting piece to plate cutting, and the cooperation motor five drives the chain activity through gear two, thereby drive the plate front and back movable regulation, on the one hand, very big improvement the device to the efficiency of plate cutting for the numerical control processing, it is higher to guarantee that the device carries out the degree of automation of cutting work to plate, work uses labour saving and time saving more, on the other hand, guarantee that the device is more accurate to the position of plate cutting.

Description

Plate cutting device for numerical control machining and operation method thereof

Technical Field

The invention relates to a cutting device, in particular to a plate cutting device for numerical control machining and an operation method thereof, and belongs to the technical field of application of cutting devices.

Background

In the numerical control machining process, the cutting device is used more and more frequently, and the plates of different types are cut and molded through the cutting device, so that the plates can be put into use in the later period.

Present plate cutting device for numerical control processing still has many weak points when using, present plate cutting device for numerical control processing is to plate cutting process's inefficiency, degree of automation to plate cutting process is low, cutting device work is used and is wasted time and energy very much, cutting device carries out the position of cutting to the plate of different thickness not accurate, and cutting device is smooth inadequately to incision department after the plate cutting, the poor stability of device work, and cutting piece on the cutting device can be adjusted the scope undersize of activity, cutting piece can not be adjusted position and direction to the plate cutting in a flexible way, cutting device can cut out the shape too single to the plate.

Disclosure of Invention

The invention aims to solve the problems that the existing plate cutting device for numerical control machining has low efficiency of cutting and machining the plate; the automation degree of the plate cutting is low, and the cutting device is time-consuming and labor-consuming to work and use; the cutting device is inaccurate in cutting positions of the plate pieces with different thicknesses; the cut of the plate cut by the cutting device is not smooth enough, and the working stability of the device is poor; the movable range of the cutting blade on the cutting device can be too small; the cutting blade can not be flexibly adjusted to the position and the direction of cutting the plate, and the cutting device can cut the plate into an excessively single shape, so that the plate cutting device for numerical control machining and the operation method thereof are provided.

The purpose of the invention can be realized by the following technical scheme: a plate cutting device for numerical control machining comprises a vertical carrying frame, a vertical cutting table, a flat supporting plate and two clamping supporting frames which are vertically arranged, wherein a top supporting plate is horizontally arranged at the top of the vertical carrying frame, sleeve sliding rails I are arranged on two sides of the top supporting plate, sleeve sliding rails I with a hollow inverted U-shaped structure are sleeved on the two sleeve sliding rails I, a sleeve sliding rail II is horizontally arranged above the two sleeve sliding rails I, a sleeve sliding rail II is sleeved on the sleeve sliding rail II, the vertical cutting table is arranged above the sleeve sliding rail II, rolling tooth grooves are formed in two sides of the sleeve sliding rail I and the sleeve sliding rail II, an inner supporting plate with a rectangular structure is horizontally arranged below the middle of the vertical carrying frame, a hydraulic cylinder I is vertically arranged on one side above the inner supporting plate, the flat supporting plate with the rectangular structure is connected above the hydraulic cylinder I in a stretching mode through a hydraulic column I, and the two clamping supporting frames are arranged on two sides above the flat;

the device comprises a flat support plate, a sleeve frame I, a sleeve frame II, a motor I, a gear II, a gear;

a second motor is vertically arranged below one end of the vertical cutting table, a rotary cylinder with a hollow cylindrical structure is rotatably connected above the second motor through a rotating shaft, a first bearing is sleeved inside the rotary cylinder, a third motor is arranged above the middle part of the first bearing, a first oscillating bar is rotatably connected above the third motor through a transmission shaft, a second bearing is sleeved at one end of the oscillating bar, a rotary connecting shaft is sleeved above the second bearing, a third bearing is vertically sleeved at one end of the rotary connecting shaft, a second oscillating bar is sleeved below the third bearing, a vertical rotary shaft with a cylindrical structure is vertically arranged below one end of the second oscillating bar, a fourth motor is arranged below the vertical rotary shaft, and a circular cutting blade is rotatably connected below the fourth motor through the transmission shaft;

the vertical rotary shaft is sleeved with a sleeve with a hollow cylindrical structure, and the rotary cylinder is connected with the sleeve through a swing rod III;

press from both sides and hold in palm frame both ends and all be provided with motor five, and all rotate on two motor five and be connected with gear two, two gears two pass through the chain cover and establish the connection, cooperation motor five drives the chain activity through gear two, thereby drive the plate front and back movable regulation, on the one hand, very big improvement the device to the efficiency of plate cutting for numerical control processing, guarantee that the device is higher to the degree of automation that the plate carries out cutting work, work uses labour saving and time saving more, on the other hand, guarantee that the device is more accurate to the position of plate cutting, the quality that the plate was cut is improved.

The invention has further technical improvements that: the two sides of the three sleeve sliding columns are arranged in parallel, and the bottoms of the sleeve sliding columns are vertically welded on the inner supporting plate.

The invention has further technical improvements that: the gear hobbing grooves are provided with a plurality of gear hobbing grooves matched with the first gears at equal intervals, two sides of the first sleeve frame are respectively connected to the gear hobbing grooves on two sides of the first sleeve slide rail through the first gears at one ends of the motors, and two sides of the second sleeve frame are respectively connected to the gear hobbing grooves on two sides of the second sleeve slide rail through the first gears at one ends of the motors.

The invention has further technical improvements that: the first sleeve frame is movably connected with the second sleeve slide rail on the first sleeve slide rail through the first motor, and the second sleeve frame is movably connected with the vertical cutting table on the second sleeve slide rail through the first motor.

The invention has further technical improvements that: the motor II is in swing connection with the swing rod III, the sleeve and the motor IV through the rotating shaft and the rotary cylinder.

The invention has further technical improvements that: the sleeve is equipped with bearing four with erecting between the spiral shaft, guarantees that pendulum rod two drives and erects the spiral shaft and rotate more smoothly, the commentaries on classics is even setting up even.

The invention has further technical improvements that: the four bottoms of motor are provided with infrared sensor, and infrared sensor and the inside PLC controller communication connection who sets up of vertical loading frame, detect the position of plate through infrared sensor, carry out cutting process to the plate through the last part of PLC controller control device.

An operation method of a plate cutting device for numerical control machining comprises the following steps:

the method comprises the following steps: the plate is placed between the two clamping and supporting frames, two ends of the bottom of the plate are respectively connected to the two chains, the motor on the first sleeve frame drives the first gear to roll on the first sleeve slide rail to drive the vertical cutting table to move back and forth, and the motor on the second sleeve frame drives the first gear to roll on the second sleeve slide rail to drive the vertical cutting table to move left and right;

step two: a motor II on the vertical cutting table drives a rotary cylinder to rotate through a rotating shaft, the rotary cylinder drives a sleeve to turn and swing through a swing rod III, the working position of the cutting blade is adjusted, the rotary cylinder is matched with the motor III to drive a swing rod I to rotate, the swing rod I drives a rotary connecting shaft to move through a bearing II, and the rotary connecting shaft drives the swing rod II and a vertical rotary shaft to rotate and transfer through the bearing III, so that the motor IV and the cutting blade are rotationally adjusted, and the cutting blade is moved to a position above a plate to be cut;

step three: the first hydraulic cylinder drives the flat supporting plate and the plate to move upwards through the hydraulic column, the cutting blade is driven to rotate to cut the plate through the motor four times, the first sleeve frame and the second sleeve frame are matched to move on the first sleeve sliding rail and the second sleeve sliding rail respectively to adjust the cutting blade to cut the plate, and the fifth motor is matched to drive the chain to move through the second gear, so that the plate is driven to move forwards and backwards.

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

1. when the device is used, a plate to be cut is placed between two clamping and supporting frames, two ends of the bottom of the plate are respectively connected to two chains, a motor on a sleeve frame I drives a gear I to roll on a sleeve slide rail I to drive a vertical cutting table to move back and forth, a motor on a sleeve frame II drives a gear I to roll on a sleeve slide rail II to drive the vertical cutting table to move left and right, a cutting piece is moved to the position above the position of the plate to be cut, a hydraulic cylinder I drives a flat supporting plate and the plate to move upwards through a hydraulic column, the cutting piece is driven to rotate by a motor four times to cut the plate, the sleeve frame I and the sleeve frame II are respectively moved on the sleeve slide rail I and the sleeve slide rail II to adjust the cutting position of the cutting piece, and the motor five drives the chains to move through a gear II to drive the plate to move back and forth, on the one hand, the efficiency of the device for cutting the plate for numerical control processing is greatly improved, guarantee that the device carries out cutting work's degree of automation to the plate higher, work uses labour saving and time saving more, and on the other hand guarantees that the device is more accurate to the position of plate cutting, has improved the quality that the plate was cut.

2. The first hydraulic cylinder drives the flat supporting plate and the plate to be adjusted up and down through the hydraulic column, so that the device can cut plates with different thicknesses, the cutting precision of the plate is higher, and the use flexibility is guaranteed; and when the flat supporting plate moves up and down, the three sliding cylinders with the hollow cylindrical structures are respectively sleeved on the sleeve sliding columns with the three cylindrical structures to slide, so that the movement of the flat supporting plate is matched, the flat supporting plate and the plate are ensured to be adjusted up and down more stably and firmly, the cut opening of the plate is ensured to be smoother, and the working stability of the device is ensured.

3. Immediately, cut a epaxial motor two and drive through the pivot and revolve a section of thick bamboo and rotate, it drives sleeve upset swing through pendulum rod three to revolve a section of thick bamboo, thereby adjust the position of cutting piece work, and it is rotatory to cooperate motor three to drive pendulum rod one, pendulum rod one drives the activity of commentaries on classics axle through bearing two, it drives pendulum rod two and perpendicular rotation axle rotation and transfer through bearing three to change the axle, thereby to motor four and cutting piece rotation regulation, when guaranteeing that the cutting piece can be adjusted the bigger of the scope of activity, make the cutting piece when cutting the board spare cutting again, the regulation that can be more nimble is to the position and the direction of board spare cutting, guarantee that the device can cut out different shapes to the board spare, the diversity of the device work has been guaranteed. The device is convenient to operate, firm and durable, has good social benefit, and is suitable for popularization and use.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic overall perspective structure of the present invention.

FIG. 2 is a front view of the second structure of the frame of the present invention.

FIG. 3 is a schematic view of the vertical cutting table of the present invention.

FIG. 4 is an enlarged view of the area A in FIG. 1 according to the present invention.

In the figure: 1. a vertical carrying frame; 2. a top bracing plate; 3. sleeving a first sliding rail; 4. sleeving a first frame; 5. sleeving a sliding rail II; 6. a tooth rolling groove; 7. a second sleeve frame; 8. a vertical cutting table; 9. an inner support plate; 10. a first hydraulic cylinder; 11. a first hydraulic column; 12. a flat supporting plate; 13. sleeving a sliding column; 14. a slide cylinder; 15. a first motor; 16. a first gear; 17. a second motor; 18. a rotating shaft; 19. rotating the cylinder; 20. a first bearing; 21. a third motor; 22. a first swing rod; 23. a second bearing; 24. rotating the connecting shaft; 25. a third bearing; 26. a second swing rod; 27. a vertical rotating shaft; 28. a swing rod III; 29. a sleeve; 30. a fourth motor; 31. cutting the slices; 32. clamping the supporting frame; 33. a fifth motor; 34. a second gear; 35. and a chain.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a plate cutting device for numerical control machining comprises a vertical carrying frame 1, a vertical cutting table 8, a flat supporting plate 12 and two clamping and supporting frames 32 which are vertically arranged, wherein a top supporting plate 2 is horizontally arranged at the top of the vertical carrying frame 1, sleeve sliding rails 3 are respectively arranged at two sides of the top supporting plate 2, sleeve sliding rails 4 with a hollow inverted U-shaped structure are respectively sleeved on the two sleeve sliding rails 3, sleeve sliding rails 5 are horizontally arranged above the two sleeve sliding rails 4, sleeve sliding rails 7 are sleeved on the sleeve sliding rails 5, the vertical cutting table 8 is arranged above the sleeve sliding rails 7, rolling tooth grooves 6 are respectively arranged at two sides of the sleeve sliding rails 3 and the sleeve sliding rails 5, an inner supporting plate 9 with a rectangular structure is horizontally arranged below the middle part of the vertical carrying frame 1, a hydraulic cylinder 10 is vertically arranged at one side above the inner supporting plate 9, the flat supporting plate 12 with the rectangular structure is connected above the hydraulic cylinder 10 in an extending mode through a hydraulic column 11, two clamping and supporting frames 32 are arranged on two sides above the flat supporting plate 12 in parallel;

the corner of the flat supporting plate 12 is sleeved with three sliding cylinders 14 in a hollow cylindrical structure in a penetrating mode, sleeve sliding columns 13 in a cylindrical structure are sleeved in the sliding cylinders 14 in a penetrating mode, the upper tops of the sleeve frame I4 and the sleeve frame II 7 are both horizontally arranged, two sides of the sleeve frame I4 and the sleeve frame II 7 are both sleeved with a motor I15, and one end of the motor I15 is rotatably connected with a gear I16;

a second motor 17 is vertically arranged below one end of the vertical cutting table 8, a rotary cylinder 19 of a hollow cylindrical structure is rotatably connected above the second motor 17 through a rotating shaft 18, a first bearing 20 is sleeved inside the rotary cylinder 19, a third motor 21 is arranged above the middle of the first bearing 20, a first oscillating bar 22 is rotatably connected above the third motor 21 through a transmission shaft, a second bearing 23 is sleeved at one end of the first oscillating bar 22, a rotary connecting shaft 24 is sleeved above the second bearing 23, a third bearing 25 is vertically sleeved at one end of the rotary connecting shaft 24, a second oscillating bar 26 is sleeved below the third bearing 25, a vertical rotary shaft 27 of a cylindrical structure is vertically arranged below one end of the second oscillating bar 26, a fourth motor 30 is arranged below the vertical rotary shaft 27, and a circular cutting blade 31 is rotatably connected below the fourth motor 30 through a transmission shaft;

wherein, the vertical rotary shaft 27 is sleeved with a sleeve 29 with a hollow cylindrical structure, and the rotary cylinder 19 is connected with the sleeve 29 through a swing rod III 28;

press from both sides and hold in palm frame 32 both ends and all be provided with five 33 of motors, and all rotate on five 33 of two motors and be connected with two 34 of gears, two 34 of gears are established the connection through 35 covers of chain, five 33 of cooperation motor drive the activity of chain 35 through two 34 of gears, thereby it adjusts to drive the plate front and back movable, on the one hand, very big improvement the device to the efficiency of plate cutting for numerical control processing, it is higher to guarantee that the device carries out the degree of automation of cutting work to the plate, work uses labour saving and time saving more, on the other hand, guarantee that the device is more accurate to the position of plate cutting, the quality that the plate was cut has been improved.

The two sides of the three sleeve sliding columns 13 are arranged in parallel, and the bottoms of the sleeve sliding columns 13 are vertically welded on the inner supporting plate 9.

The hobbing slots 6 are provided with a plurality of hobbing teeth matched with the first gear 16 at equal intervals, the two sides of the first sleeve frame 4 are respectively connected to the hobbing slots 6 on the two sides of the first sleeve slide rail 3 through the first gear 16 at one end of the first motor 15, and the two sides of the second sleeve frame 7 are respectively connected to the hobbing slots 6 on the two sides of the second sleeve slide rail 5 through the first gear 16 at one end of the first motor 15.

The first sleeve frame 4 is movably connected with the second sleeve slide rail 5 on the first sleeve slide rail 3 through the first motor 15, and the second sleeve frame 7 is movably connected with the vertical cutting table 8 on the second sleeve slide rail 5 through the first motor 15.

The second motor 17 is connected with the third swing rod 28, the sleeve 29 and the fourth motor 30 in a swinging mode through the rotating shaft 18 and the rotary cylinder 19.

A bearing IV is sleeved between the sleeve 29 and the vertical rotating shaft 27 to ensure that the swing rod II 26 drives the vertical rotating shaft 27 to rotate smoothly, and the rotating connecting shaft 24 is horizontally arranged.

The bottom of the motor IV 30 is provided with an infrared sensor, the infrared sensor is in communication connection with a PLC (programmable logic controller) arranged inside the vertical carrying frame 1, the position of the plate is detected through the infrared sensor with the model of OS137-3, and the PLC with the model of CPM1A controls components on the device to cut and process the plate.

the method comprises the following steps: the plate is placed between the two clamping and supporting frames 32, two ends of the bottom of the plate are respectively connected to the two chains 35, the first motor 15 on the first sleeve frame 4 drives the first gear 16 to roll on the first sleeve slide rail 3 to drive the vertical cutting table 8 to move back and forth, and the first motor 15 on the second sleeve frame 7 drives the first gear 16 to roll on the second sleeve slide rail 5 to drive the vertical cutting table 8 to move left and right;

step two: a second motor 17 on the vertical cutting table 8 drives a rotary drum 19 to rotate through a rotating shaft 18, the rotary drum 19 drives a sleeve 29 to turn and swing through a third swing rod 28, the working position of a cutting blade 31 is adjusted, and the rotary drum is matched with a third motor 21 to drive a first swing rod 22 to rotate, the first swing rod 22 drives a rotary connecting shaft 24 to move through a second bearing 23, the rotary connecting shaft 24 drives a second swing rod 26 and a vertical rotary shaft 27 to rotate and transfer through a third bearing 25, so that the fourth motor 30 and the cutting blade 31 are rotationally adjusted, and the cutting blade 31 is moved to a position above the plate to be cut;

step three: the hydraulic cylinder 10 drives the flat supporting plate 12 and the plate to move upwards through the hydraulic column I11, drives the cutting piece 31 to rotate through the motor four 30 to cut the plate, and then the sleeve frame I4 and the sleeve frame II 7 move on the sleeve sliding rail I3 and the sleeve sliding rail II 5 respectively to adjust the position of the cutting piece 31 for cutting the plate, and the motor five 33 is matched to drive the chain 35 to move through the gear II 34, so that the plate is driven to move forwards and backwards.

When the cutting device is used, a plate to be cut is placed between two clamping and supporting frames 32, two ends of the bottom of the plate are respectively connected to two chains 35, a first motor 15 on a first sleeve frame 4 drives a first gear 16 to roll on a first sleeve slide rail 3 to drive a vertical cutting table 8 to move back and forth, a first motor 15 on a second sleeve frame 7 drives a first gear 16 to roll on a second sleeve slide rail 5 to drive the vertical cutting table 8 to move left and right, a cutting blade 31 is moved to a position above the position of the plate to be cut, a first hydraulic cylinder 10 drives a flat supporting plate 12 and the plate to move upwards through a first hydraulic column 11, a fourth motor 30 drives the cutting blade 31 to rotate to cut the plate, the first sleeve frame 4 and the second sleeve frame 7 respectively move on the first sleeve slide rail 3 and the second sleeve slide rail 5 to adjust the cutting position of the cutting blade to the plate, and a fifth motor 33 drives the chains 35 to move through a second gear 34, therefore, the plate is movably adjusted back and forth, on one hand, the efficiency of the device for cutting the plate for numerical control machining is greatly improved, the device is guaranteed to have higher automation degree for cutting the plate, the work and use are more time-saving and labor-saving, on the other hand, the device is guaranteed to have more accurate cutting position for the plate, and the quality of the plate to be cut is improved;

the hydraulic cylinder I10 drives the flat supporting plate 12 and the plate to be adjusted up and down through the hydraulic column I11, so that the device can cut plates with different thicknesses, the cutting precision of the device for the plates is higher, and the use flexibility is guaranteed; when the flat supporting plate 12 moves up and down, the three sliding cylinders 14 with the hollow cylindrical structures are respectively sleeved on the three sleeve sliding columns 13 with the cylindrical structures to slide so as to match the movement of the flat supporting plate 12, so that the flat supporting plate 12 and the plate are more stable and firm in up-and-down adjustment movement, the cut opening of the plate is smoother, and the working stability of the device is ensured;

the second motor 17 on the vertical cutting table 8 drives the rotary drum 19 to rotate through the rotating shaft 18, the rotary drum 19 drives the sleeve 29 to overturn and swing through the third swing rod 28, so that the working position of the cutting blade 31 is adjusted, the third motor 21 is matched with the first swing rod 22 to drive the first swing rod 22 to rotate, the first swing rod 22 drives the second swing rod 26 to move through the second bearing 23, the second swing rod 26 and the vertical swing shaft 27 are driven to rotate through the third bearing 24, so that the fourth motor 30 and the cutting blade 31 are rotatably adjusted, the cutting blade 31 can be adjusted to be larger in the range of the movement, the cutting blade 31 is cut again, the position and the direction of the cutting blade can be adjusted more flexibly, the device can be ensured to cut different shapes for the cutting blade, and the working diversity of the device is ensured. The device is convenient to operate, firm and durable, has good social benefit, and is suitable for popularization and use.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a plate cutting device for numerical control processing which characterized in that: the vertical cutting device comprises a vertical carrying frame (1), a vertical cutting platform (8), a flat supporting plate (12) and two clamping supporting frames (32), wherein the top of the vertical carrying frame (1) is horizontally provided with a supporting plate (2), two sides of the supporting plate (2) are respectively provided with a first sleeve sliding rail (3), the first sleeve sliding rails (3) are respectively sleeved with a first sleeve sliding frame (4) with a hollow inverted U-shaped structure, a second sleeve sliding rail (5) is horizontally arranged above the first sleeve sliding frame (4), a second sleeve sliding rail (7) is sleeved on the second sleeve sliding rail (5), the vertical cutting platform (8) is arranged above the second sleeve sliding frame (7), rolling tooth grooves (6) are respectively arranged on two sides of the first sleeve sliding rail (3) and the second sleeve sliding rail (5), an inner supporting plate (9) with a rectangular structure is horizontally arranged below the middle part of the vertical carrying frame (1), and a first hydraulic cylinder (10) is vertically arranged on one side above the inner supporting plate (9), a flat supporting plate (12) with a rectangular structure is connected above the hydraulic cylinder I (10) in an extending mode through a hydraulic column I (11), and two clamping and supporting frames (32) are arranged on two sides above the flat supporting plate (12) in parallel;

the edge of the flat supporting plate (12) is sleeved with three sliding cylinders (14) with hollow cylindrical structures in a penetrating mode, sleeve sliding columns (13) with cylindrical structures are sleeved in the sliding cylinders (14) in a penetrating mode, the top portions of the sleeve frame I (4) and the sleeve frame II (7) are both horizontally arranged, a motor I (15) is sleeved on each of the two sides of the sleeve frame I (4) and the sleeve frame II (7), and one end of the motor I (15) is rotatably connected with a gear I (16);

a second motor (17) is vertically arranged below one end of the vertical cutting table (8), a rotary cylinder (19) with a hollow cylindrical structure is rotatably connected above the second motor (17) through a rotating shaft (18), a first bearing (20) is sleeved inside the rotary cylinder (19), a motor III (21) is arranged above the middle part of the bearing I (20), a swing rod I (22) is rotatably connected above the motor III (21) through a transmission shaft, one end of the swing rod I (22) is sleeved with a bearing II (23), a rotating connecting shaft (24) is sleeved above the bearing II (23), a third bearing (25) is vertically sleeved at one end of the rotating connecting shaft (24), a second swing rod (26) is sleeved below the third bearing (25), a vertical rotating shaft (27) with a cylindrical structure is vertically arranged below one end of the second swing rod (26), a motor IV (30) is arranged below the vertical rotating shaft (27), a round cutting blade (31) is rotationally connected below the motor IV (30) through a transmission shaft;

wherein, a sleeve (29) with a hollow cylindrical structure is sleeved on the vertical rotary shaft (27), and the rotary cylinder (19) is connected with the sleeve (29) through a swing rod III (28);

the two ends of the clamping and supporting frame (32) are provided with a fifth motor (33), the fifth motors (33) are connected with a second gear (34) in a rotating mode, and the second gears (34) are connected in a sleeved mode through chains (35).

2. A plate cutting device for numerical control machining according to claim 1, characterized in that three sleeve sliding columns (13) are arranged in parallel between both sides, and the bottom of each sleeve sliding column (13) is vertically welded to the inner supporting plate (9).

3. The plate cutting device for numerical control machining according to claim 1, characterized in that a plurality of hobbing teeth matched with the first gear (16) are arranged in the hobbing tooth grooves (6) at equal intervals, both sides of the first sleeve frame (4) are respectively connected to the hobbing tooth grooves (6) on both sides of the first sleeve sliding rail (3) through the first gear (16) at one end of the first motor (15), and both sides of the second sleeve frame (7) are respectively connected to the hobbing tooth grooves (6) on both sides of the second sleeve sliding rail (5) through the first gear (16) at one end of the first motor (15).

4. A plate cutting device for numerical control machining according to claim 3, characterized in that the first sleeve frame (4) is movably connected with the second sleeve rail (5) on the first sleeve rail (3) through the first motor (15), and the second sleeve frame (7) is movably connected with the vertical cutting table (8) on the second sleeve rail (5) through the first motor (15).

5. The plate cutting device for numerical control machining according to claim 1, characterized in that the second motor (17) is in swing connection with the third swing rod (28), the sleeve (29) and the fourth motor (30) through a rotating shaft (18) and a rotary cylinder (19).

6. A plate cutting device for numerical control machining according to claim 1, characterized in that a bearing four is sleeved between the sleeve (29) and the vertical rotary shaft (27), and the rotary connecting shaft (24) is horizontally arranged.

7. The plate cutting device for numerical control machining according to claim 1, characterized in that an infrared sensor is arranged at the bottom of the motor four (30) and is in communication connection with a PLC (programmable logic controller) arranged inside the vertical carrying frame (1).

8. An operating method of the plate cutting device for numerical control machining according to claim 1, characterized by comprising the steps of:

the method comprises the following steps: the plate is placed between two clamping and supporting frames (32), two ends of the bottom of the plate are respectively connected to two chains (35), a first motor (15) on a first sleeve frame (4) drives a first gear (16) to roll on a first sleeve sliding rail (3) to drive a vertical cutting table (8) to move back and forth in a regulating mode, and a first motor (15) on a second sleeve frame (7) drives a first gear (16) to roll on a second sleeve sliding rail (5) to drive the vertical cutting table (8) to move left and right in a regulating mode;

step two: a second motor (17) on the vertical cutting table (8) drives a rotary cylinder (19) to rotate through a rotating shaft (18), the rotary cylinder (19) drives a sleeve (29) to turn and swing through a third swing rod (28), the working position of a cutting blade (31) is adjusted, the rotary cylinder is matched with a third motor (21) to drive a first swing rod (22) to rotate, the first swing rod (22) drives a rotary connecting shaft (24) to move through a second bearing (23), the rotary connecting shaft (24) drives a second swing rod (26) and a vertical rotary shaft (27) to rotate through a third bearing (25), so that a fourth motor (30) and the cutting blade (31) are rotationally adjusted, and the cutting blade (31) is moved to the position above a plate to be cut;

step three: the hydraulic cylinder I (10) drives the flat supporting plate (12) and the plate to move upwards through the hydraulic cylinder I (11), drives the cutting piece (31) to rotate through the motor IV (30) to cut the plate, and then the sleeve frame I (4) is matched, the sleeve frame II (7) moves on the sleeve sliding rail I (3) and the sleeve sliding rail II (5) respectively to adjust the position of the cutting piece (31) to cut the plate, and the matching motor V (33) drives the chain (35) to move through the gear II (34), so that the plate is driven to move forwards and backwards.