CN210730821U

CN210730821U - High-speed cut-off machine

Info

Publication number: CN210730821U
Application number: CN201921728042.1U
Authority: CN
Inventors: 万修国
Original assignee: Qingdao Huayida Technology Co Ltd
Current assignee: Qingdao Huayida Technology Co Ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-06-12
Anticipated expiration: 2029-10-16

Abstract

The utility model relates to the technical field of machining accessories, in particular to a high-speed cutting machine which can rapidly cut off steel bars and improve the cutting effect of the steel bars; moreover, the influence of the bending of the steel bars on the cutting processing of the steel bars can be avoided; the top parts of the four groups of backing plates are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom of the working box; the cutting machine is characterized by further comprising a cutting motor, a transmission shaft, a speed reducer, a cutting shaft, a rotating wheel, a compression rod, two groups of pistons, a cylinder, a fixed rod, a cutting blade, two groups of supporting frames, a cutting block, a cutter holder, an adjusting motor, an adjusting shaft, an adjusting turntable, an adjusting box, a driven wheel, a transmission belt, a plurality of groups of adjusting gears, a plurality of groups of straightening shafts and a plurality of groups of adjusting wheels, wherein a working cavity is formed in the working box, the cutting motor is fixed at the bottom of the working cavity, the left end of the transmission shaft is connected with the right output end of.

Description

High-speed cut-off machine

Technical Field

The utility model relates to a technical field of machining auxiliary device especially relates to a high-speed cutter.

Background

As is well known, a cutting machine is an auxiliary device for cutting a hard material such as a steel bar to meet a use requirement, and is widely used in the field of steel bar processing; the existing cutting machine comprises a working box and four groups of backing plates, wherein the tops of the four groups of backing plates are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom of the working box; when the existing cutting machine is used, the cutting motor drives the transmission shaft to rotate, so that the transmission shaft drives the cutting saw blade to rotate, and then the cutting saw blade rotates to cut off the steel bar; the existing cutting machine is used for finding that the cutting saw blade is used for cutting the steel bar, the saw blade is required to slowly cut the steel bar, and the cutting efficiency of the device is low; in addition, when the steel bar is cut, the steel bar is bent, so that the cutting of the steel bar by the device is easily affected.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a steel bar cutting device which can rapidly cut off the steel bar and improve the cutting effect of the steel bar; and, can avoid the bending of reinforcing bar to influence the high-speed cutter of reinforcing bar cutting process.

The utility model relates to a high-speed cutting machine, which comprises a work box and four groups of backing plates, wherein the tops of the four groups of backing plates are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom of the work box; the cutting machine also comprises a cutting motor, a transmission shaft, a speed reducer, a cutting shaft, a rotating wheel, a compression rod, two groups of pistons, a cylinder, a fixed rod, a cutting blade, two groups of supporting frames, a cutting block, a cutter holder, an adjusting motor, an adjusting shaft, an adjusting turntable, an adjusting box, a driven wheel, a transmission belt, a plurality of groups of adjusting gears, a plurality of groups of straightening shafts and a plurality of groups of adjusting wheels, wherein a working cavity is arranged in the working box, the cutting motor is fixed at the bottom of the working cavity, the left end of the transmission shaft is connected with the right output end of the cutting motor, the speed reducer is fixed on the right side of the cutting motor, the right end of the transmission shaft is connected with the left input end of the speed reducer, the left end of the cutting shaft is connected with the left middle part of the rotating wheel, the bottom end of the compression rod, the top and the bottom of the cylinder are respectively communicated with two groups of transmission holes, the top of the compression rod penetrates through the transmission hole at the bottom and extends into the cylinder, two groups of pistons are respectively in sliding connection with the upper part and the lower part inside the cylinder, the top end of the compression rod is connected with the bottom of the piston at the lower part, the bottom end of the fixed rod is connected with the top of the piston at the upper part, the top of the fixed rod penetrates through the transmission hole at the upper part and extends out of the top of the cylinder, the bottom of the cutting blade is connected with the top of the fixed rod, the bottom ends of the two groups of support frames are respectively fixed on the front side and the rear side of the right side of the top of the working box, the two groups of support frames are respectively located on the front side and the rear side of the cylinder, the front side and; the adjusting motor is fixed on the left side of the cutting motor, the rear end of the adjusting shaft is connected with the output end of the front side of the adjusting motor, the middle part of the rear side of the adjusting rotary disc is connected with the front end of the adjusting shaft, the adjusting box is fixed on the left side of the top of the working box, the adjusting box is internally provided with an adjusting cavity, the front ends of a plurality of groups of aligning shafts are respectively rotatably connected with the upper part and the lower part of the front side of the adjusting cavity, the upper part and the lower part of the rear side of the adjusting box are communicated with a plurality of groups of adjusting ports, the rear ends of the plurality of groups of aligning shafts respectively penetrate through the plurality of groups of adjusting ports and extend out of the adjusting box, the middle part of the driven wheel is sleeved on the front side of the aligning shaft which is positioned on the leftmost side below the adjusting box, the left side of the bottom of the adjusting box and the left side of the top of the, the multi-group adjusting gears are respectively positioned above and below the adjusting box, the multi-group adjusting gears positioned above the adjusting box are respectively meshed with the adjacent adjusting gears below the left side and the right side, the middle parts of the multi-group adjusting wheels are respectively sleeved at the rear ends of the multi-group adjusting gears, the multi-group adjusting gears are all positioned at the rear part of the outer side of the adjusting box, the multi-group adjusting wheels are respectively positioned above and below the adjusting box, and the vertical distances between the bottom ends of the multi-group adjusting wheels positioned above and the top ends of the multi-group adjusting wheels positioned below are equal.

The utility model discloses a high-speed cutter, blade holder bottom central authorities are provided with the cutting groove, cut off the trench and lie in directly over cutting off the blade.

The utility model discloses a high-speed cut-off machine still includes four balanced threaded rods of group and four balanced screwed pipes of group, and the top of four balanced threaded rods of group is connected with left front side, right front side, left rear side and the right rear side of work box bottom portion respectively, and the bottom of four balanced threaded rods of group spiral shell dress is in four balanced screwed pipes of group respectively, and the bottom of four balanced screwed pipes of group rotates with the top of four group's backing plates respectively and is connected.

The utility model discloses a high-speed cut-off machine still includes four group's damping spring, and four group's damping spring suit respectively on four group's balanced threaded rod, and four group's damping spring's top is connected with left front side, right front side, left rear side and right rear side of work bottom of the case respectively, and four group's damping spring's bottom contacts with the top of four group's balanced screwed pipe respectively.

The utility model discloses a high-speed cutter, adjustment box top left side and right side communicate respectively and are provided with two sets of lubrication mouth, communicate respectively in two sets of lubrication mouth and are provided with two sets of lubricated pipes.

The utility model discloses a high-speed cutter, still include four group's preceding bracing pieces, two sets of back bracing pieces and three supporting beam of group, four group's preceding bracing pieces are fixed respectively in the left side and the right side of workstation top front side and the left side and the right side of workstation top rear side, four group's bracing pieces all are located adjusting box right side and cylinder left side, two sets of back bracing pieces are fixed respectively in the front side and the rear side on workstation top right side, three supporting beam's of group front end and rear end are connected with four group's preceding bracing piece tops and two sets of back bracing pieces's top respectively.

The utility model discloses a high-speed cutter still includes two sets of fastening threaded rods, and the dead lever top is provided with the fixed slot, cuts off the blade bottom and places in the fixed slot, and dead lever left side top and right side top are provided with two sets of fastening holes with the fixed slot intercommunication respectively, cuts off blade left side bottom and right side bottom and is provided with two sets of fastening thread grooves respectively, and two sets of fastening threaded rods pass two sets of fastening holes respectively and the spiral shell dress is at two sets of fastening thread grooves respectively.

The utility model discloses a high-speed cutter, still include two sets of leading axles, two sets of leading gears and two sets of front guide wheels, the front end of two sets of leading axles rotates with adjustment chamber left side top and left side bottom respectively and is connected, two sets of leading axles all are located the left side of multiunit alignment axle, the left top of adjustment case rear end and bottom communicate respectively and are provided with two sets of preceding guide holes, the rear end of two sets of leading axles passes two sets of preceding guide holes respectively and stretches out the adjustment case outside, the middle part suit of two sets of leading gears is respectively on two sets of leading axles, the front end gear that is located adjustment case below meshes rather than the adjacent adjustment gear in right side, the middle part suit of two sets of front guide wheels is at the rear end of two sets of leading axles respectively, two sets of front guide wheels all are located the adjustment case outside, distance between two sets of front guide wheels equals with.

Compared with the prior art, the beneficial effects of the utility model are that: the cutting shaft is driven to rotate by using a cutting motor and a speed reducer, so that the cutting shaft drives the rotating wheel to rotate, then the rotating wheel drives the bottom of the compression rod to rotate, meanwhile, the compression rod is hinged with the rotating wheel, the upper part of the compression rod is driven to move up and down, so that the compression rod drives the piston below to move up and down in the cylinder, the air pressure in the cylinder is changed by the up and down movement of the piston, so that the piston above is driven to move up and down, the piston above drives the fixed rod to move up and down, the fixed rod drives the cutting blade to move up and down, so that the cutting blade continuously impacts the bottom of the cutter seat, then the adjusting motor drives the adjusting turntable to rotate, so that the driven wheel is driven to rotate by driving the driving belt and the adjusting gear on the same adjusting shaft, the adjusting gears drive the other adjusting gears to rotate through meshing transmission, so that a plurality of groups of adjusting wheels are rotated, then the steel bars are placed among the plurality of groups of adjusting wheels, the steel bars are driven to transmit rightwards through the rotation of the adjusting wheels, and meanwhile, the bent parts of the steel bars are straightened through the extrusion of the adjusting wheels, so that the steel bars are prevented from being cut off and processed by the device due to the bending, and the smooth cutting of the steel bars is ensured; the reinforcing bar passes the blade holder below through the conveying of adjustment wheel, then through the continuous striking between cutting off blade and the blade holder to make the cutting off blade cut off the reinforcing bar, use foretell mode to cut off the reinforcing bar and can take place the striking in the moment of cutting off blade and blade holder and cut off the reinforcing bar, thereby improved the cut-off speed of device to the reinforcing bar, thereby improved the machining efficiency of reinforcing bar.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a left side view of the present invention;

fig. 3 is a right side view of the present invention;

FIG. 4 is an enlarged view of part A of the present invention;

in the drawings, the reference numbers: 1. a work box; 2. a base plate; 3. cutting off the motor; 4. a drive shaft; 5. a speed reducer; 6. cutting off the shaft; 7. a rotating wheel; 8. a compression rod; 9. a piston; 10. a cylinder; 11. fixing the rod; 12. cutting off the blade; 13. a support frame; 14. cutting off the block; 15. a tool apron; 16. adjusting the motor; 17. an adjustment shaft; 18. adjusting the turntable; 19. an adjustment box; 20. a driven wheel; 21. a transmission belt; 22. adjusting the gear; 23. aligning the shaft; 24. an adjustment wheel; 25. a balance threaded rod; 26. balancing the threaded pipe; 27. a damping spring; 28. a lubrication tube; 29. a front support bar; 30. a rear support bar; 31. a support beam; 32. fastening a threaded rod; 33. a leading shaft; 34. a front guide gear; 35. a front guide wheel.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 to 4, the high-speed cutting machine of the present invention comprises a work box 1 and four groups of backing plates 2, wherein the tops of the four groups of backing plates 2 are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom of the work box 1; the cutting device also comprises a cutting motor 3, a transmission shaft 4, a speed reducer 5, a cutting shaft 6, a rotating wheel 7, a compression rod 8, two groups of pistons 9, a cylinder 10, a fixed rod 11, a cutting blade 12, two groups of supporting frames 13, a cutting block 14, a tool apron 15, an adjusting motor 16, an adjusting shaft 17, an adjusting turntable 18, an adjusting box 19, a driven wheel 20, a transmission belt 21, a plurality of groups of adjusting gears 22, a plurality of groups of straightening shafts 23 and a plurality of groups of adjusting wheels 24, wherein a working cavity is arranged in the working box 1, the cutting motor 3 is fixed at the bottom of the working cavity, the left end of the transmission shaft 4 is connected with the right output end of the cutting motor 3, the speed reducer 5 is fixed on the right side of the cutting motor 3, the right end of the transmission shaft 4 is connected with the left input end of the speed reducer 5, the left end of the cutting shaft 6 is connected with the output end of, the right side of the top of the work box 1 is communicated with a cutting opening, the cylinder 10 is fixed in the cutting opening, the top and the bottom of the cylinder 10 are respectively communicated with two groups of transmission holes, the top of the compression rod 8 passes through the transmission hole at the bottom and extends into the cylinder 10, two groups of pistons 9 are respectively connected with the upper part and the lower part inside the cylinder 10 in a sliding way, the top end of the compression rod 8 is connected with the bottom of the piston 9 at the lower part, the bottom end of the fixed rod 11 is connected with the top of the piston 9 at the upper part, the top of the fixed rod 11 passes through the transmission hole at the upper part and extends out of the top of the cylinder 10, the bottom of the cutting blade 12 is connected with the top of the fixed rod 11, the bottom ends of two groups of support frames 13 are respectively fixed at the front side and the rear side of the right side of the top of the work box 1, two, the top of the cutter holder 15 is fixed at the bottom of the cutting block 14, and the cutter holder 15 is positioned right above the cutting blade 12; an adjusting motor 16 is fixed on the left side of a cutting motor 3, the rear end of an adjusting shaft 17 is connected with the output end of the front side of the adjusting motor 16, the middle part of the rear side of an adjusting turntable 18 is connected with the front end of the adjusting shaft 17, an adjusting box 19 is fixed on the left side of the top of a working box 1, an adjusting cavity is arranged inside the adjusting box 19, the front ends of a plurality of groups of aligning shafts 23 are respectively rotatably connected with the upper part and the lower part of the front side of the adjusting cavity, the upper part and the lower part of the rear side of the adjusting box 19 are communicated and provided with a plurality of groups of adjusting ports, the rear ends of the plurality of groups of aligning shafts 23 respectively penetrate through the plurality of groups of adjusting ports and extend out of the adjusting box 19, the middle part of a driven wheel 20 is sleeved on the front side of the aligning shaft 23 which is positioned on the leftmost side below the adjusting box 19, the left side of the bottom of the adjusting box 19, the middle parts of a plurality of groups of adjusting gears 22 are respectively sleeved on the middle parts of a plurality of groups of straightening shafts 23, the plurality of groups of adjusting gears 22 are respectively positioned above and below the inner part of the adjusting box 19, the plurality of groups of adjusting gears 22 positioned above the adjusting box 19 are respectively meshed with the adjacent adjusting gear 22 at the lower left and the adjusting gear 22 at the lower right, the middle parts of a plurality of groups of adjusting wheels 24 are respectively sleeved on the rear ends of the plurality of groups of adjusting gears 22, the plurality of groups of adjusting gears 22 are all positioned at the rear outside of the adjusting box 19, the plurality of groups of adjusting wheels 24 are respectively positioned above and below the adjusting box 19, and the vertical distances between the bottom ends of the plurality of groups of adjusting wheels 24 positioned above and the; the cutting shaft is driven to rotate by using a cutting motor and a speed reducer, so that the cutting shaft drives the rotating wheel to rotate, then the rotating wheel drives the bottom of the compression rod to rotate, meanwhile, the compression rod is hinged with the rotating wheel, the upper part of the compression rod is driven to move up and down, so that the compression rod drives the piston below to move up and down in the cylinder, the air pressure in the cylinder is changed by the up and down movement of the piston, so that the piston above is driven to move up and down, the piston above drives the fixed rod to move up and down, the fixed rod drives the cutting blade to move up and down, so that the cutting blade continuously impacts the bottom of the cutter seat, then the adjusting motor drives the adjusting turntable to rotate, so that the driven wheel is driven to rotate by driving the driving belt and the adjusting gear on the same adjusting shaft, the adjusting gears drive the other adjusting gears to rotate through meshing transmission, so that a plurality of groups of adjusting wheels are rotated, then the steel bars are placed among the plurality of groups of adjusting wheels, the steel bars are driven to transmit rightwards through the rotation of the adjusting wheels, and meanwhile, the bent parts of the steel bars are straightened through the extrusion of the adjusting wheels, so that the steel bars are prevented from being cut off and processed by the device due to the bending, and the smooth cutting of the steel bars is ensured; the reinforcing steel bar passes through the lower part of the tool apron through the transmission of the adjusting wheel, and then is continuously impacted with the tool apron through the cutting blade, so that the cutting blade cuts off the reinforcing steel bar; the cutting motor and the adjusting motor are directly purchased from the market, and are powered on when in use and operated according to the attached specifications, so the details are not repeated.

The utility model relates to a high-speed cutting machine, the center of the bottom of the cutter holder 15 is provided with a cutting groove which is positioned right above a cutting blade 12; can make the cutting blade when taking place the contact with the blade holder through setting up the cutting groove, can get into the surface of blade holder bottom to ensure that the cutting blade can cut off the reinforcing bar, thereby guarantee the effect of cutting off of reinforcing bar.

The utility model discloses a high-speed cutting machine, still include four groups of balanced threaded rods 25 and four groups of balanced screwed pipes 26, the top of four groups of balanced threaded rods 25 is connected with left front side, right front side, left rear side and right rear side of work box 1 bottom respectively, the bottom of four groups of balanced threaded rods 25 is the spiral shell dress respectively in four groups of balanced screwed pipes 26, the bottom of four groups of balanced screwed pipes 26 is connected with the top of four groups of backing plates 2 respectively and is rotated; the height of four groups of balance threaded rods can be adjusted by rotating four groups of balance threaded pipes, so that the device can keep balance when in use, and the cutting effect of the device on the reinforcing steel bars is ensured.

The utility model discloses a high-speed cutting machine, still include four groups of damping springs 27, four groups of damping springs 27 are respectively nested on four groups of balanced threaded rods 25, four groups of damping springs 27's top is connected with left front side, right front side, left back side and right back side of work box 1 bottom respectively, four groups of damping springs 27's bottom contacts with four groups of balanced screwed pipes 26's top respectively; the vibration generated when the device is used can be reduced through four groups of damping springs, so that the cutting effect of the device on the reinforcing steel bars is ensured.

The utility model discloses a high-speed cutting machine, the left side and the right side of the top of an adjusting box 19 are respectively communicated with two groups of lubricating ports, and two groups of lubricating pipes 28 are respectively communicated with the two groups of lubricating ports; can be to the interior lubricating oil that adds of adjusting box through two sets of lubricated pipes, use lubricating oil to lubricate multiunit adjusting gear to guarantee that the transmission between the multiunit adjusting gear is more smooth and easy, thereby improve the device is to the alignment effect of reinforcing bar.

The utility model discloses a high-speed cutting machine, still include four group's front strut 29, two sets of back strut 30 and three groups of supporting beam 31, four group's front strut 29 are fixed respectively on the left side and the right side of workstation top front side and the left side and the right side of workstation top rear side, four group's bracing pieces all are located adjusting box 19 right side and cylinder 10 left side, two groups of back strut 30 are fixed respectively on the front side and the rear side of workstation top right side, the front end and the rear end of three groups of supporting beam 31 are connected with four group's front strut 29 tops and two groups of back strut 30's top respectively; after the adjustment of adjustment wheel pair reinforcing bar finishes, the reinforcing bar is carried the adjusting box right side, can support the reinforcing bar through being located left two sets of supporting beam, guarantees that the reinforcing bar can be steady conveys the blade holder bottom, is cut off the back at the reinforcing bar, supports the reinforcing bar that cuts off through the supporting beam that is located the right side, can avoid dropping on the ground between the reinforcing bar that cuts off to avoid the reinforcing bar to receive the damage.

The utility model discloses a high-speed cutting machine, still include two sets of fastening threaded rods 32, dead lever 11 top is provided with the fixed slot, cuts off the bottom of blade 12 and places in the fixed slot, dead lever 11 left side top and right side top are provided with two sets of fastening holes with the fixed slot intercommunication respectively, cut off blade 12 left side bottom and right side bottom and be provided with two sets of fastening thread grooves respectively, two sets of fastening threaded rods 32 pass two sets of fastening holes respectively and screw-mount in two sets of fastening thread grooves respectively; the two groups of fastening threaded rods are used for enabling the cutting blade to be connected with the fixed rod more stably, and meanwhile, when the cutting blade needs to be replaced, the two groups of fastening threaded rods are detached, so that the cutting blade can be replaced, and therefore the cutting blade is simpler to replace.

The high-speed cutting machine of the utility model also comprises two groups of front guide shafts 33, the front ends of the two groups of front guide shafts 33 are respectively rotatably connected with the top and the bottom of the left side of the adjusting cavity, the two groups of front guide shafts 33 are positioned on the left side of the multiple groups of straightening shafts 23, the top and the bottom of the left side of the rear end of the adjusting box 19 are respectively provided with two groups of front guide holes in a communication mode, the rear ends of the two groups of front guide shafts 33 respectively penetrate through the two groups of front guide holes and extend out of the adjusting box 19, the middle parts of the two groups of front guide gears 34 are respectively sleeved on the two groups of front guide shafts 33, front end gears positioned below the adjusting box 19 are meshed with the adjacent adjusting gears 22 on the right side of the adjusting box, the middle parts of the two groups of front guide wheels 35 are respectively sleeved on the rear ends of the two groups of front guide shafts 33, the two groups of front guide wheels 35 are positioned outside the adjusting; two sets of front guide wheels are located same vertical plane, and the reinforcing bar gets into between the multiunit adjustment wheel, uses two sets of front guide wheels to transmit the reinforcing bar, because two sets of front guide wheels are on same vertical plane, can guarantee that the transmission of front guide wheel to the reinforcing bar is more stable, thereby improves the alignment effect of device to the reinforcing bar.

The utility model discloses a high-speed cutter, it uses the adjustment motor to drive multiunit adjustment wheel and rotates when using, straightens the reinforcing bar through the rotation of adjustment wheel to transmit the reinforcing bar to the blade holder bottom, through the drive that cuts off motor and speed reducer, make the cutting blade strike the blade holder, thereby make the cutting blade cut off the reinforcing bar.

The utility model discloses a high-speed cutter, above the mounting means, the connected mode or the mode that sets up of all parts are common mechanical system to the concrete structure, model and the coefficient index of all its parts are its from taking the technique, as long as can reach all can implementing of its beneficial effect, so no longer give consideration to here again.

In the present invention, the term "about" and "front-back inside-out" is used to indicate the orientation of the cutting tool in the normal use state, or the term is commonly understood by those skilled in the art, and should not be construed as limiting the term. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only. In the present invention, the terms "first", "second" and "third" do not denote any particular quantity or order, but are merely used to distinguish names.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A high-speed cutting machine comprises a working box (1) and four groups of backing plates (2), wherein the tops of the four groups of backing plates (2) are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom of the working box (1), and is characterized by comprising a cutting motor (3), a transmission shaft (4), a speed reducer (5), a cutting shaft (6), a rotating wheel (7), a compression rod (8), two groups of pistons (9), a cylinder (10), a fixed rod (11), a cutting blade (12), two groups of support frames (13), a cutting block (14), a cutter holder (15), an adjusting motor (16), an adjusting shaft (17), an adjusting turntable (18), an adjusting box (19), a driven wheel (20), a transmission belt (21), a plurality of adjusting gears (22), a plurality of straightening shafts (23) and a plurality of adjusting wheels (24), a working cavity is arranged in the working box (1), and the cutting motor (3) is fixed at, the left end of a transmission shaft (4) is connected with the right output end of a cutting motor (3), a speed reducer (5) is fixed on the right side of the cutting motor (3), the right end of the transmission shaft (4) is connected with the left input end of the speed reducer (5), the left end of a cutting shaft (6) is connected with the output end of the speed reducer (5), the middle part of the left side of a rotating wheel (7) is connected with the right end of the cutting shaft (6), the bottom end of a compression rod (8) is hinged with the top part of the right side of the rotating wheel (7), a cutting opening is communicated with the right side of the top of a work box (1), a cylinder (10) is fixed in the cutting opening, the top and the bottom of the cylinder (10) are respectively communicated with two groups of transmission holes, the top of the compression rod (8) penetrates through the transmission hole at the bottom and extends into the interior of the cylinder (10), two groups of pistons (9) are respectively connected with the upper part and the lower part of, the bottom end of a fixed rod (11) is connected with the top of a piston (9) positioned above, the top of the fixed rod (11) penetrates through a transmission hole positioned above and extends out of the outer side of the top of a cylinder (10), the bottom of a cutting blade (12) is connected with the top of the fixed rod (11), the bottom ends of two groups of supporting frames (13) are respectively fixed on the front side and the rear side of the right side of the top of a working box (1), the two groups of supporting frames (13) are respectively positioned on the front side and the rear side of the cylinder (10), the front side and the rear side of a cutting block (14) are respectively connected with the tops of the two groups of supporting frames (13), the top of a cutter holder (15) is fixed on the bottom of the cutting block (14), and the cutter holder (; an adjusting motor (16) is fixed on the left side of a cutting motor (3), the rear end of an adjusting shaft (17) is connected with the output end of the front side of the adjusting motor (16), the middle part of the rear side of an adjusting turntable (18) is connected with the front end of the adjusting shaft (17), an adjusting box (19) is fixed on the left side of the top of a working box (1), an adjusting cavity is arranged in the adjusting box (19), the front ends of a plurality of groups of straightening shafts (23) are respectively rotatably connected with the upper part and the lower part of the front side of the adjusting cavity, the upper part and the lower part of the rear side of the adjusting box (19) are communicated with a plurality of groups of adjusting ports, the rear ends of the plurality of groups of straightening shafts (23) respectively penetrate through the plurality of groups of adjusting ports and extend out of the adjusting box (19), the middle part of a driven wheel (20) is sleeved on the front side of the leftmost straightening shaft (23) below the adjusting box (19), the left side of, the transmission belt (21) penetrates through the two groups of transmission openings, the bottom end and the top end of the transmission belt (21) are respectively sleeved at the bottom end of the adjusting turntable (18) and the top end of the driven wheel (20), the middle parts of the multiple groups of adjusting gears (22) are respectively sleeved at the middle parts of the multiple groups of straightening shafts (23), the multiple groups of adjusting gears (22) are respectively positioned above and below the adjusting box (19), the multiple groups of adjusting gears (22) positioned above the adjusting box (19) are respectively meshed with the adjacent adjusting gears (22) on the left lower side and the adjacent adjusting gears (22) on the right lower side, the middle parts of the multiple groups of adjusting wheels (24) are respectively sleeved at the rear ends of the multiple groups of adjusting gears (22), the multiple groups of adjusting gears (22) are respectively positioned behind the outer sides of the adjusting box (19), the multiple groups of adjusting wheels (24) are respectively positioned above and below the adjusting box (19), and the vertical distances between the bottom ends of the multiple groups of the adjusting wheels (24.

2. A high-speed cutting-off machine according to claim 1, characterized in that the bottom center of said blade holder (15) is provided with a cutting groove which is located right above the cutting blade (12).

3. The high-speed cutting machine according to claim 2, further comprising four groups of balance threaded rods (25) and four groups of balance threaded pipes (26), wherein the top ends of the four groups of balance threaded rods (25) are respectively connected with the left front side, the right front side, the left rear side and the right rear side of the bottom of the working box (1), the bottom ends of the four groups of balance threaded rods (25) are respectively screwed in the four groups of balance threaded pipes (26), and the bottom ends of the four groups of balance threaded pipes (26) are respectively rotatably connected with the top portions of the four groups of backing plates (2).

4. A high speed cutting machine according to claim 3, further comprising four sets of damping springs (27), wherein the four sets of damping springs (27) are respectively fitted over the four sets of balance threaded rods (25), the top ends of the four sets of damping springs (27) are respectively connected to the front left side, front right side, rear left side and rear right side of the bottom of the work box (1), and the bottoms of the four sets of damping springs (27) are respectively in contact with the tops of the four sets of balance threaded pipes (26).

5. A high-speed cutting-off machine according to claim 4, characterized in that two sets of lubricating ports are respectively provided in the top of the adjusting box (19) at the left and right sides thereof, and two sets of lubricating tubes (28) are respectively provided in the two sets of lubricating ports.

6. The high-speed cutting machine according to claim 5, further comprising four groups of front support rods (29), two groups of rear support rods (30) and three groups of support beams (31), wherein the four groups of front support rods (29) are fixed on the left and right sides of the front side of the table top and the left and right sides of the rear side of the table top, respectively, the four groups of support rods are located on the right side of the adjusting box (19) and the left side of the air cylinder (10), the two groups of rear support rods (30) are fixed on the front and rear sides of the right side of the table top, respectively, and the front and rear ends of the three groups of support beams (31) are connected to the tops of the four groups of front support rods (29) and the tops of the two groups of rear support rods (30.

7. The high-speed cutter according to claim 6, further comprising two sets of fastening screw rods (32), wherein the top of the fixing rod (11) is provided with a fixing groove, the bottom of the cutting blade (12) is placed in the fixing groove, the top of the left side and the top of the right side of the fixing rod (11) are respectively provided with two sets of fastening holes communicating with the fixing groove, the bottom of the left side and the bottom of the right side of the cutting blade (12) are respectively provided with two sets of fastening screw grooves, and the two sets of fastening screw rods (32) respectively penetrate through the two sets of fastening holes and are respectively screwed in the two sets.

8. The high-speed cutting machine according to claim 7, further comprising two sets of front guide shafts (33), two sets of front guide gears (34) and two sets of front guide wheels (35), wherein the front ends of the two sets of front guide shafts (33) are rotatably connected with the top and the bottom of the left side of the adjusting cavity respectively, the two sets of front guide shafts (33) are located on the left side of the plurality of sets of straightening shafts (23), the top and the bottom of the left side of the rear end of the adjusting box (19) are respectively provided with two sets of front guide holes, the rear ends of the two sets of front guide shafts (33) respectively penetrate through the two sets of front guide holes and extend out of the adjusting box (19), the middle portions of the two sets of front guide gears (34) are respectively sleeved on the two sets of front guide shafts (33), the front end gear located below the adjusting box (19) is engaged with the adjusting gear (22) adjacent to the right side thereof, the middle portions of the two sets of front guide wheels, the two groups of front guide wheels (35) are positioned outside the adjusting box (19), and the distance between the two groups of front guide wheels (35) is equal to the longitudinal distance of the diameters of the multiple groups of adjusting wheels (24).