CN220144871U

CN220144871U - Metal pipe cutting equipment

Info

Publication number: CN220144871U
Application number: CN202321502384.8U
Authority: CN
Inventors: 许小波
Original assignee: Dongguan Nanguan Automation Technology Co ltd
Current assignee: Dongguan Nanguan Automation Technology Co ltd
Priority date: 2023-06-13
Filing date: 2023-06-13
Publication date: 2023-12-08
Anticipated expiration: 2033-06-13

Abstract

The utility model discloses metal pipe cutting equipment which comprises a frame, wherein a rotating mechanism, a rotary external cutter, a rotary traction head and a long rod are arranged on the frame; the utility model provides a rotatory drawing head can follow stock extending direction motion for acquire the metal tubular product, make the metal tubular product cover establish on the stock, stock one end is connected with rotary mechanism, rotary mechanism can drive stock axial motion and rotary motion, the interior cutter is installed to the stock other end, interior cutter can correspond with rotatory external cutter, can realize automated cutting through this equipment, greatly improve production efficiency, adopt inside and outside combination cutting mode simultaneously, can reduce the production of piece greatly, in addition when realizing automated cutting, can also satisfy equidistant cutting, avoid the support piece length of formation not to influence subsequent processing and use.

Description

Metal pipe cutting equipment

Technical Field

The utility model belongs to the technical field of cutting equipment, and particularly relates to metal pipe cutting equipment.

Background

The building board supporting piece can understand two building boards placed in parallel, a plurality of supporting pieces are placed between the two building boards to form an I-shaped structure, most of the supporting pieces are made of solid metal for a long time, the cost is high, and then due to improvement of the process, most of the existing supporting pieces are made of hollow metal pipes, the supporting pieces cannot be too long, the long hollow metal pipes are used as raw materials for manufacturing the supporting pieces, and then the supporting pieces are cut; the manual cutting mode is low in efficiency, the length error of the cut supporting pieces is large, and when the supporting pieces with different heights are used, the building boards are not parallel, so that the use is affected; in addition, existing cutting methods generate a lot of scraps, and the scraps can enter the interior of the metal tube to influence subsequent further processing.

Disclosure of Invention

The utility model aims to provide a metal pipe cutting device for solving the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the metal pipe cutting equipment comprises a frame, wherein a rotating mechanism, a liftable rotating external cutter, a rotating traction head and a long rod are arranged on the frame;

the rotary traction head can move along the extension direction of the long rod and is used for obtaining metal pipes, the metal pipes are sleeved on the long rod, one end of the long rod is connected with the rotary mechanism, the rotary mechanism can drive the long rod to move axially and rotationally, the other end of the long rod is provided with an inner cutter, and the inner cutter can correspond to the rotary outer cutter.

Further technical scheme still includes the mounting bracket, be equipped with the business turn over material window that corresponds with the inscription sword on the mounting bracket, business turn over material window department is equipped with rotatory outer cutter, rotatory outer cutter is connected with lifting unit.

Further technical scheme, lifting assembly includes second driving motor and the second drive wheelset that the transmission is connected, second drive wheelset is connected with second lead screw pair, second lead screw pair expansion end is connected with the fly leaf, the fly leaf is connected with rotatory external cutter.

Further technical scheme, rotary mechanism includes first fixed plate, a plurality of reference columns have set firmly to first fixed plate one side, and a plurality of swing joint has rotatory external member on the reference column to and set firmly axial adjustment subassembly, axial adjustment subassembly is connected with rotatory external member transmission, rotatory external member is connected with the stock, install drive assembly one on the rotatory external member, drive assembly one is connected with rotatory external member transmission.

Further technical scheme, axial adjusting part includes the second fixed plate with a plurality of reference columns fixed connection, install first driving motor and the first drive wheelset that the transmission is connected on the second fixed plate, first drive wheelset is connected with first lead screw pair, first lead screw pair expansion end is connected with rotatory external member.

According to a further technical scheme, a plurality of reinforcing rods are arranged between the first fixing plate and the second fixing plate, and are distributed at the upper end part and the wall to form a triangle.

According to a further technical scheme, the mounting frame is further provided with a fixing mechanism for fixing the metal pipe during feeding.

Further technical scheme, fixed establishment includes push-and-pull subassembly, push-and-pull subassembly's output and two adjustable shelves swing joint, the adjustable shelf rotates with the mounting bracket to be connected, still is equipped with the chuck on the adjustable shelf, two the chuck can be close to each other and form the clamping position to the clamping position corresponds with the business turn over material window.

Further technical scheme, push-and-pull subassembly includes two cylinders two to and the movable block of being connected with cylinder two rotation, the movable block rotates with the fixed block to be connected, the fixed block is established on the mounting bracket, the other end rotation of movable block is connected with the connecting rod, the slide bar swing joint of connecting rod other end and movable frame.

Further technical scheme, rotatory traction head includes drive assembly two, install the fixing base on the drive assembly two, be equipped with the passageway that supplies stock and inscription sword to pass in the fixing base, correspond the passageway rotation on the fixing base and install fixed part and clamping assembly, the fixed part corresponds the tip of passageway, and the fixed part supplies tubular product turn-ups to put into, clamping assembly can stretch into fixed part and tubular product turn-ups counterbalance, and cooperate the fixed part to fix the turn-ups centre gripping.

The utility model has the beneficial effects that:

the automatic cutting can be realized through the equipment, the production efficiency is greatly improved, meanwhile, the inside and outside combined cutting mode is adopted, the generation of scraps can be greatly reduced, in addition, the automatic cutting is realized, the equidistant cutting can be also realized, and the formed support piece length is prevented from affecting the subsequent processing and use.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

Fig. 1: the utility model relates to a three-dimensional structure and an enlarged view.

Fig. 2: the utility model relates to a three-dimensional structure and an enlarged view II.

Fig. 3: the three-dimensional structure diagram of the rotating mechanism of the utility model.

Fig. 4: the rotary mechanism of the present utility model is a side view.

Fig. 5: the structure diagram of the rotary external cutter, the mounting frame, the lifting assembly, the fixing mechanism and the blanking mechanism is provided.

Fig. 6: the fixing mechanism structure of the utility model is shown in the figure.

Fig. 7: the utility model is an enlarged view of section a of fig. 6.

Fig. 8: the utility model relates to a side view of a fixing mechanism and a blanking mechanism.

Fig. 9: the utility model relates to a three-dimensional structure diagram of a rotary traction head.

Reference numerals: the machine comprises a 1-frame, a 2-rotating mechanism, a 21-first fixed plate, a 22-positioning column, a 23-rotating sleeve, a 24-axial adjusting component, a 241-second fixed plate, a 242-first driving motor, a 243-first transmission wheel set, a 244-first screw pair, a 25-driving component I, a 26-reinforcing rod, a 31-rotating outer cutter, a 32-mounting frame, a 33-feeding and discharging window, a 341-second driving motor, a 342-second transmission wheel set, a 343-second screw pair, a 344-movable plate connection, a 4-rotating traction head, a 41-driving component II, a 42-fixed seat, a 43-channel, a 44-fixed part, a 45-clamping component, a 451-cylinder III, a 452-bearing sleeve, a 453-sleeve, a 454-movable rod, a 455-clamping block, a 51-long rod, a 52-inner cutter, a 6-fixed mechanism, a 611-cylinder II, a 612-movable block, a 613-fixed block, a 614-connecting rod, a 615-sliding rod, a 62-movable frame, a 63-clamping head, a 7-blanking component, a 71-blanking block, a 72-movable block, a 73-cylinder, a 73-movable block, a 73-clamping block, a 74-movable block and a 74-8-supporting component.

Description of the embodiments

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Please refer to fig. 1-9;

the cutting equipment is mainly manufactured aiming at metal pipes, wherein the metal pipes are hollow metal pipes, automatic cutting can be realized through the equipment, the production efficiency is greatly improved, and meanwhile, the generation of scraps can be greatly reduced by adopting an internal and external combined cutting mode;

the device specifically comprises a frame 1, wherein a rotating mechanism 2, a liftable rotating outer cutter 31, a rotating traction head 4 and a long rod 51 are arranged on the frame 1, the rotating traction head 4 can move along the extending direction of the long rod 51 and is used for obtaining a metal pipe, the metal pipe is sleeved on the long rod 51, one end of the long rod 51 is connected with the rotating mechanism 2, the rotating mechanism 2 can drive the long rod 51 to axially move and rotate, an inner cutter 52 is arranged at the other end of the long rod 51, and the inner cutter 52 can correspond to the rotating outer cutter 31; it should be noted that the present utility model has at least one cutting station of the same structure, and the following embodiments are described with respect to only one cutting station;

during operation, the rotary traction head 4 moves to the position of the feeding and discharging window 33, the rotary outer cutter 31 ascends to avoid blocking feeding of the metal pipe, then the metal pipe enters the frame 1, the metal pipe is obtained through the rotary traction head 4, then the rotary traction head 4 drives the metal pipe to move along the direction that the long rod 51 is far away from the inner cutter 52, meanwhile, the metal pipe is sleeved on the long rod 51 and the inner cutter 52, namely, the long rod 51 and the inner cutter 52 enter the metal pipe, after the metal pipe completely enters the frame 1, the rotary outer cutter 31 descends, the inner cutter 52 and the rotary outer cutter 31 cooperate to cut the same position of the metal pipe, and in the cutting process, the rotary mechanism 2 drives the long rod 51 to rotate, and the long rod 51 drives the inner cutter 52 and the metal pipe to rotate so as to cut the metal pipe; after each pair of metal pipes is cut into a section, the rotary outer cutter 31 is lifted, the rotary traction head 4 is rotated to push out a section of metal pipe, and then the rotary outer cutter 31 is lowered again to be matched with the inner cutter.

Further, the diameters of the inner cutter 52 and the long rod 51 are smaller than the hollow inner diameter of the metal pipe, so that the inner cutter 52 and the long rod 51 can penetrate into the metal pipe, when cutting is performed, the inner cutter 52 rotates under the driving of the long rod 51, and meanwhile, the inner cutter 52 is matched with the rotating outer cutter 31 to extrude the metal pipe, and when the inner cutter 52 rotates, the metal pipe can also rotate along with the action of friction force, so that the metal pipe can be cut in a rotating mode.

Preferably the outer cutter assembly may consist of a circular outer cutter body and a bearing assembly; when cutting is carried out, the circumscribed body can rotate under the action of friction force, and the phase change reduces the rotation resistance of the metal pipe, so that the metal pipe can rotate during cutting;

the length of the metal pipe is usually longer than the length of the frame 1, the positions where the rotary pulling head 4 pulls the metal pipe into the frame 1 are the same, and the difference is that the length of each metal pipe is the same, so that the first knife of each metal pipe is cut into leftover materials, the length of each metal pipe in the frame 1 can be equal through the first knife, and then the rotary pulling head 4 pushes the metal pipe to move towards the feeding and discharging window 33 at equal intervals, so that the automatic cutting is realized, the equidistant cutting can be satisfied, and the formed support piece length is prevented from affecting the subsequent processing and use.

Of course, a plurality of support members are provided on the frame 1 for supporting the long rods 51, which are not described in detail herein.

The utility model also includes but is not limited to the following feeding modes;

in the first feeding mode, the inner cutter 52 and the rotary outer cutter 31 are in a dislocation state during feeding, so that the blocking of the feeding of the metal pipe can be avoided, then the metal pipe is obtained through the rotary drawing head 4, the metal pipe is sleeved on the long rod 51 and the inner cutter 52, and then the long rod 51 is pushed to axially move through the rotary mechanism 2, so that the inner cutter 52 is correspondingly matched with the rotary outer cutter 31;

in the second feeding mode, the rotary external cutter 31 is connected with the lifting assembly, the rotary external cutter 31 can be lifted to form a clearance state during feeding, and then the external cutter assembly is lowered after the metal pipe completely enters the frame 1, so that the external cutter assembly is matched with the internal cutter 52.

The utility model relates to one embodiment of a rotating mechanism 2, referring to fig. 3 and 4, specifically comprising a first fixed plate 21, wherein one side of the first fixed plate 21 is fixedly provided with a plurality of positioning columns 22, a rotating sleeve member 23 is movably connected to the plurality of positioning columns 22, and an axial adjusting assembly 24 is fixedly arranged on the plurality of positioning columns, the axial adjusting assembly 24 is in transmission connection with the rotating sleeve member 23, the rotating assembly is driven by the axial adjusting assembly 24 to reciprocate along the direction of the positioning columns 22, and the rotating sleeve member 23 is connected with a long rod 51, namely, the long rod 51 and an inner cutter 52 are driven to axially move; in addition, a first driving component 25 is installed on the rotating sleeve 23, the first driving component 25 is in transmission connection with the rotating sleeve 23, in this embodiment, the rotating sleeve 23 can be composed of a bearing and a support, the support is connected with the long rod 51, a first gear is arranged on the support, a second gear is installed on the first driving component 25, the first gear is connected with the second gear through a transmission belt, and rotation of the support is achieved, so that the long rod 51 and the inner cutter 52 are driven to rotate.

In this embodiment, the axial adjustment assembly 24 includes a second fixing plate 241 fixedly connected to the positioning columns 22, a first driving motor 242 and a first driving wheel set 243 are installed on the second fixing plate 241, the first driving wheel set 243 is connected to a first screw pair 244, and a movable end of the first screw pair 244 is connected to the rotating sleeve 23; the first driving motor 242 drives the first driving wheel set 243 to rotate, so as to drive the first screw pair 244 to act, i.e. drive the rotary sleeve 23 to move back and forth along the positioning rod.

Further, a plurality of reinforcing rods 26 are provided between the first fixing plate 21 and the second fixing plate 241, the plurality of reinforcing rods 26 are distributed at the upper end and the wall to form a triangle with each other, and the connection structure between the first fixing plate 21 and the second fixing plate 241 is reinforced.

Referring to fig. 5-8, the utility model further comprises a mounting frame 32, a feeding and discharging window 33 corresponding to the inner cutter 52 is arranged on the mounting frame 32, an outer cutter assembly is arranged at the feeding and discharging window 33,

the external cutter assembly is connected with the lifting assembly; the metal pipe enters the frame 1 from the feeding and discharging window 33, then when in operation, the rotary traction head 4 pushes the metal pipe out of the feeding and discharging window 33 for a certain period at equal intervals, then the metal pipe is cut by the inner cutter 52 and the outer cutter assembly, and a small section of cut metal pipe falls out from the feeding and discharging window 33;

further, a blanking assembly 7 is arranged at the outer side of the feeding and discharging window 33, one embodiment of the blanking assembly 7 comprises a blanking slide plate 71, the blanking slide plate 71 is rotationally connected with the mounting frame 32, a movable block 61272 is further arranged below the blanking slide plate 71, the lower end of the movable block 61272 is slidably connected with the mounting frame 32, a bump 73 is arranged on the upper end face of the movable block 61272, and in addition, the movable block 61272 is further connected with a plurality of first cylinders 74; when the metal pipe is fed, the blanking slide plate 71 is in a sagging state to form a clearance, the blocking of the feeding of the metal pipe is avoided, and when the metal pipe is fed, the first cylinder 74 drives the movable block 61272 to move towards the blanking slide plate 71, so that the convex block 73 is propped against the bottom surface of the blanking slide plate 71, the blanking slide plate 71 is jacked up to form inclined sliding, and the cut small-section metal pipe is convenient to be blanked.

In addition, the position that is located the business turn over material window 33 still is equipped with sliding connection's supporting part 8, and supporting part 8 includes the support frame, is equipped with two pulleys at the support frame up end, can assist the tubular metal resonator to rotate, plays the supporting role simultaneously, and the support frame lower extreme face is equipped with pulley two in addition, pulley two offsets with movable block 61272 terminal surface, and movable block 61272 up end is equipped with the ripple, under the drive of cylinder one 74, when bellied ripple and pulley two contact on the movable block 61272, can make supporting part 8 wholly rise, makes the tubular metal resonator form the support.

In this embodiment, regarding one implementation of the lifting assembly, the lifting assembly specifically includes a second driving motor 341 and a second driving wheel set 342 that are in transmission connection, the second driving wheel set 342 is connected with a second screw pair 343, a movable end of the second screw pair 343 is connected with a movable plate 344, and the movable plate is connected with the external cutter assembly.

In the utility model, the fixing mechanism 6 is also arranged on the mounting frame 32 and is used for fixing the metal pipe during feeding, and the position of the metal pipe is fixed through the fixing mechanism 6, so that the rotary traction head 4 can be conveniently obtained.

Further, the fixing mechanism 6 includes a push-pull assembly, the output end of the push-pull assembly is movably connected with the two movable frames 62, the movable frames 62 are rotatably connected with the mounting frame 32, the two chucks 63 are further provided on the movable frames 62, the two chucks 63 respectively have a slot adapted to the metal pipe, for example, the metal pipe is a cylinder, that is, the two chucks 63 respectively have an arc slot, the push-pull assembly can push out and retract the two movable frames 62 respectively to be away from or close to each other, for example, when the push-pull device is retracted, because the two movable frames 62 are rotatably connected with the mounting frame 32, the two movable frames 62 can be close to each other, so that the two chucks 63 form a relative state, that is, form a clamping position, and the clamping position corresponds to the feeding and discharging window 33.

Referring to fig. 6, regarding one embodiment of the push-pull assembly, specifically, two second cylinders 611 and a movable block 61272 rotatably connected to the second cylinders 611, in this embodiment, the movable block 61272 is in an "L" shape, that is, the second cylinders 611 are connected to the lower portion of the "L" shaped movable block 61272, the movable block 61272 is rotatably connected to the fixed block 613, for example, the middle portion of the "L" shaped movable block 61272 is rotatably connected to the fixed block 613, the fixed block 613 is disposed on the mounting frame 32, the other end of the movable block 61272 is rotatably connected to a connecting rod 614, that is, the upper end of the "L" shaped movable block 61272 is movably connected to the connecting rod 614, and the other end of the connecting rod 614 is movably connected to the sliding rod 615 of the movable frame 62; the second cylinder 611 in the embodiment is longitudinally arranged, and the pushing out and the shrinking can drive the movable block 61272 to rotate;

for example, the second cylinder 611 acts to drive the movable block 61272 to rotate, and at the same time, the connecting rod 614 is pushed out or retracted, and the movable frame 62 is driven to be unfolded or closed by the action of the connecting rod 614, and as the rotation of the movable block 61272 can cause the connecting rod 614 to generate a certain height change, the movable block 61272 is provided with the sliding rod 615, one end of the connecting rod 614 is movably connected with the sliding rod 615, and when the height of the connecting rod 614 changes, the other end of the connecting rod 614 can slide up and down with the sliding rod 615 to adjust the height.

The present utility model relates to one embodiment of the rotary pulling head 4, and referring to fig. 9, the following problems are caused when the metal pipe is obtained by a clamping method such as air claw: because the metal pipe is longer and has larger mass, a plurality of air pawls are required to be arranged for carrying the metal pipe, the cost is high, and the circuit is difficult to install; of course, other more convenient modes can be provided, but the following scheme is considered to save the occupied area and have higher efficiency through researches, specifically, the end part of the metal pipe is firstly subjected to flanging treatment, then the flanging is clamped through the rotary traction head 4, the metal pipe is pulled into the frame 1 through the rotary traction head 4, and meanwhile, the long rod 51 and the inner cutter 52 penetrate into the metal pipe; the pipe flanging fixture specifically comprises a second driving component 41, wherein a fixed seat 42 is arranged on the second driving component 41, a channel 43 for a long rod 51 and an inner cutter 52 to pass through is arranged in the fixed seat 42, the second driving component 41 drives the fixed seat 42 to reciprocate along the long rod 51, a fixing part 44 and a clamping component 45 are rotatably arranged on the fixed seat 42 corresponding to the channel 43, the fixing part 44 corresponds to the end part of the channel 43, the fixing part 44 is used for placing a pipe flanging, the clamping component 45 can extend into the fixing part 44 to prop against the pipe flanging, and the flanging is clamped and fixed by matching with the fixing part 44;

during operation, the metal pipe can rotate along with the long rod 51, and because the rotary traction head 4 clamps and fixes the metal pipe, the rotary traction head 4 also can rotate along with the long rod, the scheme adopted is that the fixing part 44 and the clamping assembly 45 rotate, further explaining that the fixing part 44 is in rotary connection with the fixing seat 42, the clamping assembly 45 comprises two air cylinders three 451 fixedly arranged on the fixing seat 42, the two air cylinders three 451 are connected with a bearing sleeve 452, the inner side of the bearing sleeve 452 is rotationally connected with a shaft sleeve 453, the shaft sleeve 453 can rotate relative to the bearing sleeve 452, the shaft sleeve 453 axially slides and radially rotates with the fixing seat 42, for example, the fixing seat one is in barrel, and the corresponding shaft sleeve is sleeved on the fixing seat one; the shaft sleeve 453 is connected with at least one movable rod 454 in a rotating manner, the movable rod 454 is connected with the clamping block 455 in a rotating manner, the clamping block 455 is connected with the fixed part 44 in a rotating manner, the clamping block 455 can be moved deep into the fixed part 44 in a rotating manner, the flange is clamped by the fixed part 44, the bearing sleeve 452 is pushed by the two air cylinders three 451, the shaft sleeve 453 axially slides, the movable rod 454 is linked in sequence, the clamping block 455 is rotated, and when the movable rod rotates, the fixed part 44, the clamping block 455, the movable rod 454 and the shaft sleeve 453 synchronously rotate.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims

1. Metal pipe cutting equipment, including frame (1), its characterized in that: the machine frame (1) is provided with a rotating mechanism (2), a liftable rotating external cutter (31), a rotating traction head (4) and a long rod (51);

the rotary traction head (4) can move along the extending direction of the long rod (51) and is used for obtaining metal pipes, the metal pipes are sleeved on the long rod (51), one end of the long rod (51) is connected with the rotary mechanism (2), the rotary mechanism (2) can drive the long rod (51) to move axially and rotate, the inner cutter (52) is arranged at the other end of the long rod (51), and the inner cutter (52) can correspond to the rotary outer cutter (31).

2. A metal tubing cutting apparatus according to claim 1, wherein: still include mounting bracket (32), be equipped with on mounting bracket (32) with interior business turn over material window (33) that cutter (52) correspond, business turn over material window (33) department is equipped with rotatory outer cutter (31), rotatory outer cutter (31) are connected with lifting unit.

3. A metal tubing cutting apparatus according to claim 2, wherein: the lifting assembly comprises a second driving motor (341) and a second driving wheel set (342) which are connected in a transmission way, the second driving wheel set (342) is connected with a second screw pair (343), the movable end of the second screw pair (343) is connected with a movable plate (344), and the movable plate is connected with the rotary outer cutter (31).

4. A metal tubing cutting apparatus according to claim 1, wherein: the rotary mechanism (2) comprises a first fixing plate (21), a plurality of locating columns (22) are fixedly arranged on one side of the first fixing plate (21), a plurality of locating columns (22) are movably connected with a rotary sleeve (23) and an axial adjusting assembly (24) is fixedly arranged on the locating columns (22), the axial adjusting assembly (24) is in transmission connection with the rotary sleeve (23), the rotary sleeve (23) is connected with a long rod (51), a first driving assembly (25) is arranged on the rotary sleeve (23), and the first driving assembly (25) is in transmission connection with the rotary sleeve (23).

5. The metal pipe cutting apparatus of claim 4, wherein: the axial adjusting assembly (24) comprises a second fixed plate (241) fixedly connected with a plurality of positioning columns (22), a first driving motor (242) and a first driving wheel set (243) which are in transmission connection are installed on the second fixed plate (241), the first driving wheel set (243) is connected with a first screw rod pair (244), and the movable end of the first screw rod pair (244) is connected with a rotating sleeve (23).

6. The metal pipe cutting apparatus of claim 5, wherein: a plurality of reinforcing rods (26) are arranged between the first fixing plate (21) and the second fixing plate (241), and the reinforcing rods (26) are distributed at the upper end part and the wall to form a triangle.

7. A metal tubing cutting apparatus according to claim 2, wherein: and the mounting frame (32) is also provided with a fixing mechanism (6) for fixing the metal pipe during feeding.

8. The metal pipe cutting apparatus of claim 7, wherein: the fixed mechanism (6) comprises a push-pull assembly, the output end of the push-pull assembly is movably connected with two movable frames (62), the movable frames (62) are rotatably connected with the mounting frame (32), clamping heads (63) are further arranged on the movable frames (62), the two clamping heads (63) can be mutually close to form clamping positions, and the clamping positions correspond to the feeding and discharging windows (33).

9. The metal pipe cutting apparatus of claim 8, wherein: the push-pull assembly comprises two air cylinders II (611) and movable blocks (612) (72) rotationally connected with the air cylinders II (611), the movable blocks (612) (72) are rotationally connected with fixed blocks (613), the fixed blocks (613) are arranged on the mounting frame (32), the other ends of the movable blocks (612) (72) are rotationally connected with connecting rods (614), and the other ends of the connecting rods (614) are movably connected with sliding rods (615) of the movable frame (62).

10. A metal tubing cutting apparatus according to claim 1, wherein: the rotary traction head (4) comprises a driving component II (41), a fixing seat (42) is arranged on the driving component II (41), a channel (43) for a long rod (51) and an inner cutter (52) to pass through is arranged in the fixing seat (42), a fixing part (44) and a clamping component (45) are arranged on the fixing seat (42) corresponding to the channel (43) in a rotating mode, the fixing part (44) corresponds to the end part of the channel (43), the fixing part (44) is used for placing a pipe flanging, the clamping component (45) can extend into the fixing part (44) to prop against the pipe flanging, and the flanging is clamped and fixed by the matching fixing part (44).