CN220679514U - Flat pipe cutting tool - Google Patents

Abstract

The utility model relates to a flat tube cutting tool which comprises a cabinet, a cutting unit arranged outside the left side of the cabinet and a clamping unit arranged inside the cabinet and matched with the cutting unit; the cutting unit comprises a supporting plate which is transversely arranged, a plurality of brackets which are fixed between the bottom of the supporting plate and the outer wall of the left side of the cabinet, a carrier plate which is transversely and movably connected to the top of the supporting plate so as to have a left-right translation function, a shifting cylinder which is fixed to the left side of the supporting plate, two compression assemblies which are arranged on the top of the carrier plate and are respectively distributed left and right, a limiting block which is movably arranged on the top of the carrier plate so as to have a front-back translation function and is positioned between the two compression assemblies, a cutter which is fixed on the limiting block, and a cutting cylinder which is fixed to the rear side of the supporting plate; the utility model simplifies the operation steps to improve the processing efficiency; in addition, the cutting error of the flat tube is reduced so as to ensure that the cutting precision meets the standard.

Description

Flat pipe cutting tool

Technical Field

The utility model relates to a flat tube cutting tool.

Background

The different cross-sectional shapes of the pipeline are roughly divided into rectangular pipes, round pipes and flat pipes, and the flat pipes are widely applied to industrial production, because the bending rigidity of the flat pipes is larger than that of the round pipes, and under certain conditions, the bending deformation of the flat pipes is smaller than that of the round pipes, so that the accuracy and stability of conveying objects can be ensured; the flat pipe can be cut according to the length requirement as other pipes; the existing flat tube cutting device is mostly reformed based on the traditional manual cutting machine, so that the degree of automation is low, and the feeding, cutting and discharging of the flat tube in the cutting process are all manually operated, so that the operation steps are complicated, and the processing efficiency is low; in addition, because current flat pipe cutting device can't be in cutting the in-process effectively to the flat pipe location, lead to the cutting error of flat pipe great, cause the cutting length size not up to standard, remain further improvement.

Disclosure of Invention

Aiming at the current state of the art, the technical problem to be solved by the utility model is to provide the flat tube cutting tool which greatly improves the degree of automation, simplifies the operation steps, improves the processing efficiency, reduces the cutting error of the flat tube and ensures that the cutting precision accords with the standard.

The technical scheme adopted for solving the technical problems is as follows: the flat tube cutting tool is characterized by comprising a cabinet, a cutting unit arranged outside the left side of the cabinet and a clamping unit arranged inside the cabinet and matched with the cutting unit; the cutting unit comprises a supporting plate transversely arranged, a plurality of brackets fixed between the bottom of the supporting plate and the outer wall of the left side of the cabinet, a carrier plate transversely and movably connected to the top of the supporting plate so as to have a left-right translation function, a shifting cylinder fixed on the left side of the supporting plate, two compression assemblies arranged on the top of the carrier plate and distributed left and right respectively, a limiting block movably arranged on the top of the carrier plate so as to have a front-back translation function and positioned between the two compression assemblies, a cutter fixed on the limiting block, and a cutting cylinder fixed on the rear side of the supporting plate, wherein the telescopic end of the shifting cylinder is transversely and rightwards arranged and detachably fixed on the carrier plate, a limiting groove is formed between the outer walls of the left side and right sides of the end part of the limiting block, and the cutter is vertically fixed between the inner walls of the upper side and the lower side of the limiting groove; the compression assembly comprises two supporting blocks vertically fixed at the top of the carrier plate and symmetrically arranged front and back, a bottom plate transversely fixed between the upper sides of the two supporting blocks, two seat blocks vertically fixed at the top of the bottom plate and symmetrically arranged front and back, a top plate transversely fixed between the upper sides of the two seat blocks, a compression cylinder fixed at the top of the top plate, and a pressing plate transversely arranged between the bottom plate and the top plate, wherein the telescopic end of the compression cylinder vertically penetrates through the top plate downwards and is fixed on the pressing plate; the clamping unit comprises two transverse beams which are transversely fixed between the inner walls of the left side and the right side of the cabinet and are respectively arranged up and down, a plurality of support columns which are vertically fixed between the two transverse beams, a back plate which is vertically fixed between the front sides of the support columns, two feeding components which are movably arranged on the front sides of the back plate and have the up-and-down movement function, and a traction component which is fixed on the back plate and is connected with the two feeding components.

Preferably, the traction assembly comprises two structural columns vertically fixed on the front side of the backboard, a frame plate fixed between the lower ends of the two structural columns and positioned below the backboard, a traction cylinder fixed at the bottom of the frame plate, a traction plate transversely arranged between the frame plate and the backboard, two traction columns vertically inserted and screwed in the traction plate, a lifting column vertically fixed on one feeding assembly below, a chain wheel rotatably connected with one feeding assembly above the front side of the backboard, a chain erected on the upper side of the chain wheel and a connecting column vertically fixed on one feeding assembly above the chain wheel; the telescopic ends of the traction cylinders vertically penetrate through the frame plates upwards and are detachably fixed on the traction plates, the lower ends of the two traction columns penetrate through the frame plates downwards and extend out of the lower portions of the frame plates, one ends of the chains are downwards fixed at the upper ends of the lifting columns, the other ends of the chains are downwards fixed at the upper ends of the connecting columns, and the lower ends of the lifting columns are fixed on the traction plates.

Preferably, the feeding assembly comprises a rear plate, a front plate, two driving rollers, a feeding belt, a power motor and two supporting roller combinations, wherein the rear plate is vertically and movably connected to the front side of the rear plate so as to have the up-down movement function, the front plate is vertically arranged in front of the rear plate, the two driving rollers are rotatably connected between the front plate and the rear plate and are respectively arranged left and right, the feeding belt is sleeved on the two driving rollers, the power motor is fixed to the rear side of the rear plate, the two supporting rollers are respectively arranged up and down, a rotating shaft of the power motor transversely passes through the rear plate and is concentrically fixed to the rear end of one driving roller, the supporting roller combinations comprise a plurality of supporting rollers which are sequentially arranged from left to right, two ends of each supporting roller are respectively rotatably connected to the front plate and the rear plate, the upper side of each supporting roller above is attached to the upper inner wall of the feeding belt, and the lower side of each supporting roller below is attached to the lower inner wall of the feeding belt; the connecting column is vertically fixed to the rear side of the rear plate in the upper one of the feed assemblies, and the lifting column is vertically fixed to the rear side of the rear plate in the lower one of the feed assemblies.

Preferably, the right side of the cabinet is further provided with a guide unit, the guide unit comprises two short pipes which are transversely fixed on the outer wall of the right side of the cabinet and are respectively arranged up and down, a vertical pipe which is vertically fixed between the two short pipes, a hanging frame which is fixed on the right side of the vertical pipe, a first supporting roller combination and a second supporting roller combination which are arranged on the front side of the hanging frame and are respectively distributed up and down, a swinging block which is rotatably connected on the front side of the hanging frame and is positioned on the left side of the first supporting roller combination, a guide motor which is fixed on the front side of the end part of the swinging block, a driven roller which is transversely and rotatably connected on the front side of the hanging frame and is positioned below the swinging block, and a driving roller which is sleeved on the rotating shaft of the guide motor and is positioned above the driven roller, and the rotating shaft of the guide motor transversely and backwards passes through the swinging block and stretches out to the rear of the swinging block.

Preferably, the first backing roll combination includes a plurality of from left to right first backing roll that sets gradually, a plurality of first backing roll is all horizontal and rotatable the connection on the front side outer wall of stores pylon, the second backing roll combination includes a plurality of from left to right second backing roll that sets gradually, a plurality of the second backing roll is all horizontal and rotatable the connection on the front side outer wall of stores pylon.

Preferably, the guide unit further comprises two limiting columns vertically fixed on the upper side of a short pipe below and capable of adjusting front and rear fixing positions, each limiting column is further sleeved with a plurality of pulleys which can rotate and are distributed from top to bottom in sequence, and the outer wall of the front side or the rear side of the swinging block is further fixed with a balancing weight.

Preferably, a material passing hole is formed in the outer walls of the left side and the right side of the cabinet, a discharging channel is formed between the bottom plate, the top plate and the two seat blocks in each pressing assembly, the right opening of each discharging channel is matched with the material passing hole on the left side, and the material passing hole on the right side is arranged between the two limiting columns and is matched with the bottom of the driving roller and the top of the driven roller.

Preferably, the front side of the carrier plate is also fixed with a stop block which is vertically arranged, the stop block is arranged in front of the end part of the limiting block, the front of the carrier plate is also provided with a chute plate which is obliquely distributed, the chute plate is fixed on the supporting plate in a way that the left side of the chute plate is low and the right side of the chute plate is high, and the right end of the chute plate is arranged below the left side opening of one discharging channel on the left side of the chute plate.

Compared with the prior art, the utility model has the advantages that: the automatic feeding device greatly improves the degree of automation, and further can automatically feed, cut and discharge the flat tube without manual operation, so that the operation steps are simplified to improve the processing efficiency; in addition, still can carry out effectual location in order to avoid flat pipe to take place not hard up with the help of clamping unit and direction unit to flat pipe in the cutting process, and then reduced the cutting error of flat pipe in order to ensure that cutting accuracy accords with the standard.

Drawings

FIG. 1 is a left front side block diagram of the present utility model;

fig. 2 is a right front side structural view of the clamping unit of the present utility model;

fig. 3 is a left rear side structural view of the clamping unit of the present utility model;

fig. 4 is a left front side structural view of the cutting unit of the present utility model;

fig. 5 is a left rear side structural view of the cutting unit of the present utility model;

FIG. 6 is a position diagram of a platen of the present utility model;

fig. 7 is a right front side structural view of the guide unit of the present utility model.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

In order to keep the following description of the embodiments of the present utility model clear and concise, the detailed description of known functions and known components thereof have been omitted.

As shown in fig. 1 to 7, a flat tube cutting tool comprises a cabinet 1, a cutting unit 2 arranged outside the left side of the cabinet 1, and a clamping unit 3 arranged inside the cabinet 1 and matched with the cutting unit 2; the cutting unit 2 comprises a supporting plate 22 transversely arranged, a plurality of brackets 21 fixed between the bottom of the supporting plate 22 and the outer wall of the left side of the cabinet 1, a carrier plate 23 transversely and movably connected to the top of the supporting plate 22 so as to have a left-right translation function, a shifting cylinder 213 fixed on the left side of the supporting plate 22, two pressing assemblies arranged on the top of the carrier plate 23 and distributed left and right respectively, a limiting block 29 movably arranged on the top of the carrier plate 23 so as to have a front-back translation function and positioned between the two pressing assemblies, a cutter 210 fixed on the limiting block 29, and a cutting cylinder 28 fixed on the rear side of the supporting plate 22, wherein the telescopic end of the shifting cylinder 213 is transversely and rightwards arranged and detachably fixed on the carrier plate 23, a limiting groove 291 is formed between the outer walls of the left side and the right side of the end of the limiting block 29, and the cutter 210 is vertically fixed between the inner walls of the upper side and the lower side of the limiting groove 291; the compressing assembly comprises two supporting blocks 24 vertically fixed on the top of the carrier plate 23 and symmetrically arranged front and back, a bottom plate 25 transversely fixed between the upper sides of the two supporting blocks 24, two seat blocks 26 vertically fixed on the top of the bottom plate 25 and symmetrically arranged front and back, a top plate 27 transversely fixed between the upper sides of the two seat blocks 26, a compressing cylinder 211 fixed on the top of the top plate 27, and a pressing plate 212 transversely arranged between the bottom plate 25 and the top plate 27, wherein the telescopic end of the compressing cylinder 211 vertically penetrates through the top plate 27 downwards and is fixed on the pressing plate 212; the clamping unit 3 comprises two transverse beams 31 which are transversely fixed between the inner walls of the left side and the right side of the cabinet 1 and are respectively arranged up and down, a plurality of support columns 32 which are vertically fixed between the two transverse beams 31, a back plate 33 which is vertically fixed between the front sides of the support columns 32, two feeding components which are movably arranged on the front side of the back plate 33 and are respectively provided with an up-and-down movement function, and a traction component which is fixed on the back plate 33 and is connected with the two feeding components.

The traction assembly comprises two structural columns 34 vertically fixed on the front side of the backboard 33, a frame plate 35 fixed between the lower ends of the two structural columns 34 and positioned below the backboard 33, a traction air cylinder 36 fixed at the bottom of the frame plate 35, a traction plate 39 transversely arranged between the frame plate 35 and the backboard 33, two traction columns 37 vertically inserted and screwed in the traction plate 39, a lifting column 310 vertically fixed on one feeding assembly below, a chain wheel 311 rotatably connected on the front side of the backboard 33 and higher than one feeding assembly above, a chain 312 erected on the upper side of the chain wheel 311, and a connecting column 313 vertically fixed on one feeding assembly above; the telescopic ends of the traction cylinders 36 vertically pass through the frame plate 35 upwards and are detachably fixed on the traction plate 39, the lower ends of the two traction columns 37 downwards pass through the frame plate 35 and extend out to the lower part of the frame plate 35, one end of the chain 312 is downwards fixed on the upper end of the lifting column 310, the other end of the chain 312 is downwards fixed on the upper end of the connecting column 313, and the lower ends of the lifting columns 310 are fixed on the traction plate 39.

The feeding assembly comprises a back plate 314 vertically and movably connected to the front side of the back plate 33 so as to have the function of moving up and down, a front plate 315 vertically arranged in front of the back plate 314, two driving rollers 316 rotatably connected between the front plate 315 and the back plate 314 and respectively arranged left and right, a feeding belt 317 sleeved on the two driving rollers 316, a power motor 319 fixed to the rear side of the back plate 314, and two supporting roller combinations arranged between the front plate 315 and the back plate 314 and respectively arranged up and down, wherein a rotating shaft of the power motor 319 transversely passes through the back plate 314 and is concentrically fixed to the rear end of one driving roller 316, the supporting roller combinations comprise a plurality of supporting rollers 318 sequentially arranged from left to right, two ends of each supporting roller 318 are respectively rotatably connected to the front plate 315 and the back plate 314, the upper side of each supporting roller 318 above is attached to the upper inner wall of the feeding belt 317, and the lower side of each supporting roller 318 below is attached to the lower inner wall of the feeding belt 317.

The connection column 313 is vertically fixed to the rear side of the rear plate 314 in the upper one of the feed assemblies, and the lifting column 310 is vertically fixed to the rear side of the rear plate 314 in the lower one of the feed assemblies.

The right side of the cabinet 1 is also provided with a guide unit 4, the guide unit 4 comprises two short pipes 41 which are transversely fixed on the outer wall of the right side of the cabinet 1 and are respectively arranged up and down, a vertical pipe 42 which is vertically fixed between the two short pipes 41, a hanging frame 43 which is fixed on the right side of the vertical pipe 42, a first supporting roller combination and a second supporting roller combination which are arranged on the front side of the hanging frame 43 and are respectively distributed up and down, a swinging block 45 which is rotatably connected on the front side of the hanging frame 43 and is positioned on the left side of the first supporting roller combination, a guide motor 46 which is fixed on the front side of the end part of the swinging block 45, a driven roller 47 which is transversely and rotatably connected on the front side of the hanging frame 43 and is positioned below the swinging block 45, and a driving roller 48 which is sleeved on the rotating shaft of the guide motor 46 and is positioned above the driven roller 47, and the rotating shaft of the guide motor 46 transversely passes through the swinging block 45 backwards and extends to the rear of the swinging block 45.

The first backing roll combination includes a plurality of first backing roll 412 that sets gradually from left to right, and a plurality of first backing roll 412 is all horizontal and rotatable the connection on the front side outer wall of stores pylon 43, and the second backing roll combination includes a plurality of second backing roll 44 that sets gradually from left to right, and a plurality of second backing roll 44 is all horizontal and rotatable the connection on the front side outer wall of stores pylon 43.

The guiding unit 4 further comprises two limiting columns 410 which are vertically fixed on the upper side of a short pipe 41 below and can adjust the front and rear fixing positions, each limiting column 410 is also sleeved with a plurality of pulleys 411 which can rotate and are distributed from top to bottom in sequence, and the outer wall of the front side or the rear side of the swinging block 45 is also fixed with a balancing weight 49.

The outer walls of the left side and the right side of the cabinet 1 are respectively provided with a material passing hole 101, a discharging channel 216 is formed among the bottom plate 25, the top plate 27 and the two seat blocks 26 in each pressing assembly, the right opening of each discharging channel 216 is matched with one material passing hole 101 on the left side, and one material passing hole 101 on the right side is arranged between two limit posts 410 and is matched with the bottom of the driving roller 48 and the top of the driven roller 47.

The front side of the carrier plate 23 is also fixed with a stop block 215 which is vertically arranged, the stop block 215 is arranged in front of the end part of the limiting block 29, the front side of the carrier plate 23 is also provided with a chute plate 214 which is obliquely distributed, the chute plate 214 is fixed on the supporting plate 22 in a way that the left side is low and the right side is high, and the right end of the chute plate 214 is arranged below the left side opening of one discharging channel 216 on the left side.

The bottom of the traction cylinder 36 is also provided with a transversely distributed base plate 38, two driven gears 6 are also arranged below the base plate 38, the lower ends of the two traction columns 37 penetrate through the base plate 38 in a rotatable mode and are respectively and concentrically fixed on the two driven gears 6, a short shaft 11 which is vertically arranged is also inserted and connected in the base plate 38, a driving gear 7 is also sleeved and fixed at the lower end of the short shaft 11, and the driving gear 7 is meshed between the two driven gears 6.

The inside of rack 1 still is equipped with sleeve pipe 8, and the inside grafting of upper end of sleeve pipe 8 has axial displacement and can't rotate relatively dabber 9, and the lower extreme of sleeve pipe 8 can universal rotatable connect in the upper end of minor axis 11, and the front side of rack 1 still alternates and is connected with rotatable connecting axle 12, and the end of dabber 9 can universal rotatable connect in the inner of connecting axle 12, and the outer end of connecting axle 12 still overlaps to establish and is fixed with knob 10.

Working principle:

one end of the flat tube firstly passes through the space between the first supporting roller combination and the second supporting roller combination in the guide unit 4 from right to left, each first supporting roller 412 and each second supporting roller 44 are respectively pressed on the upper side and the lower side surface of the flat tube, then one end of the flat tube passes through the space between the driving roller 48 and the driven roller 47 from right to left, then one end of the flat tube passes through the space between the two limiting columns 410 from right to left, finally the flat tube stretches into the right side in the cabinet 1 through one passing hole 101 on the right side, and at least one pulley 411 on each limiting column 410 is pressed on the front side or the rear side outer wall of the flat tube; the guide motor 46 is started to rotate the rotating shaft, so as to drive the driving roller 48 to rotate, and the root of the swinging block 45 is rotatably connected to the hanging frame 43, so that the end part of the swinging block 45 always has a downward swinging trend by means of the weights of the guide motor 46 and the balancing weight 49, and the driving roller 48 can be always pressed on the upper side surface of the flat tube, so that the driving roller 48 drives the flat tube to transversely feed leftwards when rotating.

When the flat tube continues to feed leftwards, one end of the flat tube extends between the two feeding assemblies, then the telescopic end of the traction cylinder 36 in the traction assembly is driven to extend outwards, and the lifting column 310 is driven to move upwards by the traction plate 39, so that the lower feeding assembly is driven to move upwards, in the process, one end of the chain 312 fixed at the upper end of the lifting column 310 moves upwards, the other end of the chain 312 is pulled to be fixed at the connecting column 313, and the upper feeding assembly has self weight, so that the other end of the chain 312 moves downwards under the driving of the weight of the upper feeding assembly and drives the chain wheel 311 to rotate, and the upper feeding assembly moves downwards until the lower outer wall of the feeding belt 317 in the upper feeding assembly is tightly attached to the upper side surface of the flat tube, and the upper outer wall of the feeding belt 317 in the lower feeding assembly is tightly attached to the lower side surface of the flat tube.

The power motor 319 in each feeding assembly is started to rotate the rotating shaft of the feeding assembly, and then the feeding belt 317 is driven to operate by means of the two driving rollers 316, so that left transverse feeding is continued on the premise that the flat tube is not shifted up and down, the middle of the feeding belt 317 can be effectively prevented from being sunken by the aid of the supporting rollers 318, the outer wall of the feeding belt 317 can be attached to the surface of the flat tube in a large area, and accordingly friction force is effectively increased to ensure the feeding stability of the flat tube.

When one end of the flat tube passes through one material passing hole 101 on the left side, the flat tube sequentially passes through a material discharging channel 216 formed by two pressing components, and the telescopic end of the shifting cylinder 213 is driven to extend outwards or shrink inwards according to the requirement so as to drive the carrier plate 23 to move leftwards or rightwards, and then the cutting cylinder 28, the limiting block 29, the cutter 210 and the two pressing components are driven to move leftwards or rightwards, so that the relative positions of the cutter 210 and the flat tube are adjusted to adjust the cutting length of the flat tube; after the adjustment is completed, the telescopic ends of the compression cylinders 211 in each compression assembly are driven to extend outwards, so that the two pressing plates 212 are driven to move downwards until the upper side surfaces of the flat tubes are compressed, the flat tubes are fixed in the two discharging channels 216, then the telescopic ends of the cutting cylinders 28 are driven to extend outwards to drive the limiting blocks 29 to move forwards, the flat tubes gradually enter the limiting grooves 291, when the front side cutting edges of the cutters 210 contact the flat tubes, the flat tubes are sheared until the end parts of the limiting blocks 29 abut against the stop blocks 215, and the cut flat tube segments stay in one discharging channel 216 on the left side.

Then, the telescopic ends of the two pressing cylinders 211 are driven to retract inwards to drive the two pressing plates 212 to move upwards to separate from the flat tube, and meanwhile, the telescopic ends of the cutting cylinder 28 are driven to retract inwards to drive the limiting block 29 to move backwards, after that, the flat tube is continuously driven to feed leftwards, and during the feeding process, one end of the flat tube is pushed out leftwards with the flat tube section in one discharging channel 216 on the left side before, so that the flat tube section falls into the chute plate 214 and slides outwards by the inclination of the chute plate 214 to realize automatic collection, thereby forming a cycle.

If the distance between the two feeding components needs to be adjusted, the knob 10 is only required to be rotated by hand to drive the connecting shaft 12 to rotate, and then the mandrel 9 which is in universal connection with the inner end of the connecting shaft 12 and the sleeve 8 which is in universal connection with the upper end of the short shaft 11 drive the short shaft 11 to rotate, so that the driving gear 7 drives the two driven gears 6 to rotate in the same direction, and further drives the two traction columns 37 to rotate on the traction plate 39, and accordingly the traction plate 39 is driven to move upwards or downwards according to the principle of spiral connection, and further the lifting column 310 is driven to move upwards or downwards, so that the adjustment of the distance between the two feeding components is realized.

The automatic feeding device greatly improves the degree of automation, and further can automatically feed, cut and discharge the flat tube without manual operation, so that the operation steps are simplified to improve the processing efficiency; in addition, still can carry out effectual location to flat pipe in the cutting process with the help of clamping unit 3 and direction unit 4 in order to avoid flat pipe to take place not hard up, and then reduced the cutting error of flat pipe in order to ensure that cutting accuracy accords with the standard.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; while the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications may be made to the techniques described in the foregoing embodiments, or that certain features may be substituted for those illustrated therein; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (8)

1. The flat tube cutting tool is characterized by comprising a cabinet, a cutting unit arranged outside the left side of the cabinet and a clamping unit arranged inside the cabinet and matched with the cutting unit; the cutting unit comprises a supporting plate transversely arranged, a plurality of brackets fixed between the bottom of the supporting plate and the outer wall of the left side of the cabinet, a carrier plate transversely and movably connected to the top of the supporting plate so as to have a left-right translation function, a shifting cylinder fixed on the left side of the supporting plate, two compression assemblies arranged on the top of the carrier plate and distributed left and right respectively, a limiting block movably arranged on the top of the carrier plate so as to have a front-back translation function and positioned between the two compression assemblies, a cutter fixed on the limiting block, and a cutting cylinder fixed on the rear side of the supporting plate, wherein the telescopic end of the shifting cylinder is transversely and rightwards arranged and detachably fixed on the carrier plate, a limiting groove is formed between the outer walls of the left side and right sides of the end part of the limiting block, and the cutter is vertically fixed between the inner walls of the upper side and the lower side of the limiting groove; the compression assembly comprises two supporting blocks vertically fixed at the top of the carrier plate and symmetrically arranged front and back, a bottom plate transversely fixed between the upper sides of the two supporting blocks, two seat blocks vertically fixed at the top of the bottom plate and symmetrically arranged front and back, a top plate transversely fixed between the upper sides of the two seat blocks, a compression cylinder fixed at the top of the top plate, and a pressing plate transversely arranged between the bottom plate and the top plate, wherein the telescopic end of the compression cylinder vertically penetrates through the top plate downwards and is fixed on the pressing plate; the clamping unit comprises two transverse beams which are transversely fixed between the inner walls of the left side and the right side of the cabinet and are respectively arranged up and down, a plurality of support columns which are vertically fixed between the two transverse beams, a back plate which is vertically fixed between the front sides of the support columns, two feeding components which are movably arranged on the front sides of the back plate and have the up-and-down movement function, and a traction component which is fixed on the back plate and is connected with the two feeding components.

2. The flat tube cutting tool according to claim 1, wherein the traction assembly comprises two structural posts vertically fixed on the front side of the backboard, a frame plate fixed between the lower ends of the two structural posts and positioned below the backboard, a traction cylinder fixed at the bottom of the frame plate, a traction plate transversely arranged between the frame plate and the backboard, two traction posts vertically inserted and screwed in the traction plate, a lifting post vertically fixed on one feeding assembly below, a chain wheel rotatably connected on the front side of the backboard and higher than one feeding assembly above, a chain erected on the upper side of the chain wheel, and a connecting post vertically fixed on one feeding assembly above; the telescopic ends of the traction cylinders vertically penetrate through the frame plates upwards and are detachably fixed on the traction plates, the lower ends of the two traction columns penetrate through the frame plates downwards and extend out of the lower portions of the frame plates, one ends of the chains are downwards fixed at the upper ends of the lifting columns, the other ends of the chains are downwards fixed at the upper ends of the connecting columns, and the lower ends of the lifting columns are fixed on the traction plates.

3. The flat tube cutting tool according to claim 2, wherein the feeding assembly comprises a rear plate vertically and movably connected to the front side of the back plate so as to have an up-and-down movement function, a front plate vertically arranged in front of the rear plate, two driving rollers rotatably connected between the front plate and the rear plate and respectively arranged left and right, a feeding belt sleeved on the two driving rollers, a power motor fixed to the rear side of the rear plate, and two supporting roller assemblies arranged between the front plate and the rear plate and respectively arranged up and down, a rotating shaft of the power motor transversely passes through the rear plate and is concentrically fixed to the rear end of one of the driving rollers, the supporting roller assemblies comprise a plurality of supporting rollers sequentially arranged from left to right, two ends of each supporting roller are respectively rotatably connected to the front plate and the rear plate, the upper side of each supporting roller above is attached to the upper inner wall of the feeding belt, and the lower side of each supporting roller below is attached to the lower inner wall of the feeding belt; the connecting column is vertically fixed to the rear side of the rear plate in the upper one of the feed assemblies, and the lifting column is vertically fixed to the rear side of the rear plate in the lower one of the feed assemblies.

4. A flat tube cutting tool according to claim 3, wherein the right side of the cabinet is further provided with a guide unit, the guide unit comprises two short tubes transversely fixed on the outer wall of the right side of the cabinet and respectively arranged up and down, a vertical tube vertically fixed between the two short tubes, a hanging frame fixed on the right side of the vertical tube, a first supporting roller combination and a second supporting roller combination which are arranged on the front side of the hanging frame and respectively distributed up and down, a swinging block rotatably connected on the front side of the hanging frame and positioned on the left side of the first supporting roller combination, a guide motor fixed on the front side of the end part of the swinging block, a driven roller transversely and rotatably connected on the front side of the hanging frame and positioned below the swinging block, and a driving roller sleeved on the rotating shaft of the guide motor and positioned above the driven roller, and the rotating shaft of the guide motor transversely and backwards passes through the swinging block and stretches out to the rear of the swinging block.

5. The flat tube cutting tool according to claim 4, wherein the first support roller assembly comprises a plurality of first support rollers which are sequentially arranged from left to right, the plurality of first support rollers are transversely and rotatably connected to the front outer wall of the hanger, the second support roller assembly comprises a plurality of second support rollers which are sequentially arranged from left to right, and the plurality of second support rollers are transversely and rotatably connected to the front outer wall of the hanger.

6. The flat tube cutting tool according to claim 5, wherein the guiding unit further comprises two limiting posts vertically fixed on the upper side of a short tube below and capable of adjusting front and rear fixing positions, each limiting post is further sleeved with a plurality of pulleys which can rotate and are distributed sequentially from top to bottom, and a balancing weight is further fixed on the outer wall of the front side or the rear side of the swinging block.

7. The flat tube cutting tool according to claim 6, wherein a material passing hole is formed in outer walls of left and right sides of the cabinet, a material discharging channel is formed between the bottom plate, the top plate and the two seat blocks in each pressing assembly, a right opening of each material discharging channel is matched with a material passing hole on the left side, and a material passing hole on the right side is arranged between the two limit posts and matched with the bottom of the driving roller and the top of the driven roller.

8. The flat tube cutting tool according to claim 7, wherein a stop block arranged vertically is further fixed on the front side of the carrier plate, the stop block is arranged in front of the end portion of the limiting block, a chute plate distributed obliquely is further arranged in front of the carrier plate, the chute plate is fixed on the supporting plate in a left-low and right-high mode, and the right end of the chute plate is arranged below a left opening of one discharging channel on the left side.