CN114683347A

CN114683347A - Treatment device and treatment process for anti-flanging welding end face of lining pipe

Info

Publication number: CN114683347A
Application number: CN202210490571.2A
Authority: CN
Inventors: 周亚俊; 代昊; 朱东升; 吕伟
Original assignee: Lu'an Zhongcai Pipeline Technology Co ltd
Current assignee: Lu'an Zhongcai Pipeline Technology Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-07-01

Abstract

The invention discloses a device and a process for processing an anti-flanging welding end face of a lining pipe, and particularly relates to the technical field of processing of the end face of the lining pipe. The end parts of the two lining pipes are cut into different shapes, and the end parts of the two lining pipes can be aligned and matched, so that the contact area during welding is increased, the extrusion force applied to the lining pipes during welding is reduced, and the phenomenon of welding flanging is reduced.

Description

Treatment device and treatment process for anti-flanging welding end face of lining pipe

Technical Field

The invention relates to the technical field of end face treatment of a lining pipe, in particular to an anti-flanging welding end face treatment device and a treatment process method for the lining pipe.

Background

With the continuous development of polymer material technology, more and more polymer materials come out, and these different materials are widely used in various industries of human society, for example, when carrying out gas and water resource transportation, pipelines are often used, and the pipelines can be corroded after long-time use, and are easy to be damaged when the external environment is severe, and the like, and the interior of the pipelines is often protected by using lining pipes to protect the inner walls of the pipelines, wherein one of the lining pipes commonly used is a lining pipe made of PE.

It is when in actual use, interior bushing pipe is not infinite length, general condition summer, interior bushing pipe is the pipeline of a plurality of equal length, when the construction, because construction pipeline length is longer, need to weld many interior bushing pipes, make the length of the interior bushing pipe of segment make up into longer interior bushing pipe, but when welding the terminal surface of interior bushing pipe among the prior art, because interior bushing pipe terminal surface temperature is higher during the welding, and need exert the extrusion force when two interior bushing pipes contact, make two interior bushing pipes in close contact with, produce turn-ups phenomenon this moment easily. To this end, we propose a textile dyeing apparatus to solve the above problems.

Disclosure of the invention

In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide a device and a process for processing an anti-flanging welded end face of a liner tube, so as to solve the above-mentioned problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the anti-flanging welding end face processing device for the lining pipe comprises a rack, wherein two horizontal cutting knife wheels are symmetrically arranged on two sides of the interior of the rack, cutting blades are arranged on the upper side and the lower side of the interior of the rack, the cutting direction of the cutting blades is perpendicular to the cutting direction of the cutting knife wheels, storage boxes are symmetrically arranged on two sides of the rack, and the cutting knife wheels are stored in the storage boxes;

so as to cut the welding section of the lining pipe, increase the contact area of the lining pipe when aligning, and reduce the flanging phenomenon generated by welding the lining pipe.

In a preferred embodiment, a driving assembly is mounted on the outer side of the cutting knife wheel, the driving assembly is arranged inside the storage box, the driving assembly comprises a moving plate, a rotating shaft is mounted at one end of the moving plate, the rotating shaft penetrates through the cutting knife wheel and drives the cutting knife wheel to rotate, a first servo motor is mounted at the other end of the rotating shaft, the output end of the first servo motor is in transmission connection with the top end of the rotating shaft through a belt transmission mechanism, and a protective shell is arranged outside the belt transmission mechanism;

so as to cut the horizontal position of the end part of the lining pipe, and the driving components on the two sides drive the cutting knife wheels to cut synchronously, so that the cutting efficiency is higher, and the contact area of the lining pipe is increased.

In a preferred embodiment, a slide block is mounted at the top end of the movable plate, a linear slide rail is mounted below the movable plate, the slide block is connected with the slide rail in a sliding manner, a telescopic rod is mounted on the outer side of the storage box, and the output end of the telescopic rod penetrates through the side wall of the storage box and extends into the storage box to be fixedly connected with the slide block;

carry on spacingly to drive assembly for only can present linear motion when cutting knife flywheel removes, the cutting knife flywheel of both sides is to the interior bushing pipe back of cutting, and interior bushing pipe both sides can align.

In a preferred embodiment, the two cutting blades are respectively positioned at two sides of the lining pipe, one end, far away from the cutter tip, of each cutting blade is connected with a tooth-missing gear, one side of each tooth-missing gear is provided with a straight-tooth plate, the tooth-missing gear is meshed with the straight-tooth plate, the straight-tooth plate slides in the rack through a fixing frame, the fixing frame is a vertically-arranged supporting rod, the top end of the fixing frame is fixedly connected with the inner top wall of the rack, and the straight-tooth plate can slide at the bottom end;

so that drive the interior bushing pipe of cutting blade cutting, the cutting blade of both sides can become the shape that matches with interior bushing pipe cutting to in the back is got rid of to the waste material after will cutting, the adaptation can be aimed at to the interior bushing pipe of both sides, and then convenient welding.

In a preferred embodiment, the bottom end of the fixing frame is provided with a fixing block vertically staggered with the fixing frame, the cross section of the fixing block is arranged to be v 21274, the position of the straight tooth plate corresponding to the fixing block is provided with a connecting plate, the connecting plate is arranged inside the fixing block, and the straight tooth plate is in sliding connection with the fixing block through the connecting plate;

the position of the straight toothed plate moving is limited, so that the straight toothed plate can only do linear reciprocating motion, the stability of the straight toothed plate when the straight toothed plate drives the gear with missing teeth to swing in a reciprocating mode is improved, and therefore the section of the cutting blade generated by cutting the liner tube is smoother, and the subsequent welding is facilitated.

In a preferred embodiment, the upper and lower surfaces of the connecting plate are both provided with first chutes, the cross section of each first chute is semicircular, the inner side wall of the fixed block is provided with a second chute, the structures of the first chutes and the second chutes are matched, a plurality of baffles are distributed in the second chute at equal intervals from top to bottom, balls capable of rolling in situ are mounted between the two baffles, the second chutes and the first chutes of the balls form a rolling groove with a circular cross section, and the balls are located in the rolling groove;

the sliding friction force of the connecting plate and the fixed block is converted into the rolling friction force of the balls, so that the heat generated by the sliding of the connecting plate in the fixed block when the straight-tooth plate does linear reciprocating motion is reduced, and the service life of the structure is prolonged.

In a preferred embodiment, a clamping mechanism is mounted at the end of the machine frame, the clamping mechanism comprises arc-shaped clamping blocks, the number of the arc-shaped clamping blocks is set to be a plurality of blocks, the arc-shaped clamping blocks are distributed in a circumferential array, two adjacent arc-shaped clamping blocks are connected through a corrugated pipe, an extrusion air bag is arranged on the inner side wall of each arc-shaped clamping block, the extrusion air bags are communicated and connected with the inner cavity of each arc-shaped clamping block, an air supply pipe is arranged on the outer side of each arc-shaped clamping block, the air supply pipes are communicated into a whole through a connecting pipe, the middle of one air supply pipe is communicated with an air pipe, and the air pipe is externally connected with an air blowing pump;

the surface of the lining pipe is laminated by the aid of the deformable extrusion air bag, the lining pipe is clamped by the aid of pressure inside the extrusion air bag, so that the clamping effect is better, gas is synchronously filled inside the air supply pipes simultaneously, the pressure inside the extrusion air bags is the same, clamping force on the lining pipe is the same, and accordingly, the lining pipe is clamped by the aid of the clamping force, and subsequent cutting operation is facilitated.

In a preferred embodiment, at least one vent hole is formed in one side of the extrusion airbag, the vent holes are obliquely arranged, and the vent holes face the cutting position of the lining pipe, so that the cutting position can be cooled and cleaned by internal gas conveniently.

In a preferred embodiment, one side of the arc-shaped clamping block is connected with a guide plate, and the inner side wall of the guide plate forms a smooth arc surface; the liner tube is guided, so that the liner tube can be clamped conveniently.

In a preferred embodiment, the method further comprises a treatment process of the anti-flanging welded end face of the lining pipe, and the specific operation steps are as follows:

the method comprises the following steps: clamping the inner lining pipes, moving the rack to the position where the two inner lining pipes are welded, wherein the inner lining pipes enter between the plurality of arc-shaped clamping blocks along the guide plate, then blowing air to the air conveying pipes through an external air blowing pump, and uniformly distributing the air in the air conveying pipes into the plurality of air supply pipes through the connecting pipes, so that the air enters the inside of the extrusion air bag through the cavities of the arc-shaped clamping blocks, the extrusion air bag is expanded, the outer side walls of the inner lining pipes are wrapped, and the inner lining pipes are clamped;

step two: the welding end face treatment is divided into two parts:

the first part is used for processing upper and lower semicircles of the cross section of the lining pipe, when a straight-tooth plate is meshed with the toothless gear, a cutting blade is in an inclined state, after the lining pipe is clamped, a telescopic motor is driven, the output end of the telescopic motor drives a connecting rod, the connecting rod makes linear motion and continuously moves forwards in the rack, the straight-tooth plate can keep stable linear motion under the supporting action of a fixing frame, the straight-tooth plate makes linear motion to drive the toothless gear to rotate so as to cut the lining pipe, and the telescopic motor controls the connecting rod to make linear reciprocating motion so as to enable the cutting blade to continuously cut the lining pipe and further cut the upper semicircles of the cross section of the lining pipe;

the second part, handle the horizontal part of interior bushing pipe, seven backs of accomplishing of shape when the tip cross section, start the telescopic link, the output of telescopic link drives the movable plate and removes to frame inside, and simultaneously, start first servo motor, first servo motor's output passes through belt transmission mechanism and drives the pivot rotation, the pivot rotates and drives the rotation of cutting knife wheel, the lateral wall of bushing pipe is cut to the cutting knife wheel of continuous rotation, and simultaneously, the output of telescopic link promotes the movable plate and moves forward, thereby cut the lateral wall horizontal position of interior bushing pipe, the both sides of bushing pipe are cut in step to the cutting knife wheel of both sides simultaneously, thereby handle the welding terminal surface of bushing pipe, increase the area of contact of two interior bushing pipes.

Step three: the clearance, the inside bushing pipe of arc clamp splice carry out the centre gripping back, because the exhaust hole slope sets up, the exhaust hole is towards the position of bushing pipe cutting, because the inside conveying gas of the continuous response arc clamp splice of air-blowing pump, the gas of carrying constantly blows to the cutting position through the exhaust hole, cools down the cutting position to the sweeps clearance that will produce during the cutting.

The invention has the technical effects and advantages that:

1. compared with the prior art, the integral structure designed by the invention has the advantages that the end parts of the lining pipes are cut by utilizing the cutting knife wheels and the cutting blades, the upper parts of the end parts of the lining pipes are cut by the vertical cutting blades, the horizontal position of the end parts of the lining pipes is cut by the horizontal cutting knife wheels, so that the end parts of the two lining pipes are cut into different shapes, the end parts of the two lining pipes can be aligned and adapted, the contact area during welding is increased, the extrusion force applied to the lining pipes during welding is reduced, and the welding flanging phenomenon is reduced;

2. through setting up fixture, compare with prior art, utilize the extrusion gasbag after aerifing to fill up the space between arc clamp splice and the interior bushing pipe to because extrusion gasbag itself can the material softer can take place deformation, thereby make the extrusion gasbag can laminate on the surface of interior bushing pipe, and through the inside atmospheric pressure of extrusion gasbag, make the extrusion gasbag moderate to the extrusion force degree of bushing pipe, carry out stable centre gripping to the bushing pipe.

Drawings

Fig. 1 is a schematic view of the overall structure of a device for processing the anti-flanging welded end face of a lining pipe according to the present invention.

Fig. 2 is a schematic structural diagram of a driving assembly mounting protective shell according to the present invention.

Fig. 3 is a schematic structural diagram of a driving assembly according to the present invention.

Fig. 4 is a vertical sectional view of the present invention.

FIG. 5 is an enlarged view of the structure at A in FIG. 4 according to the present invention

Fig. 6 is a schematic structural view of the spur plate and the fixed block sliding in the present invention.

Fig. 7 is a schematic structural view of the spur plate and the fixed block at another view angle when they slide.

FIG. 8 is an enlarged view of the structure of FIG. 7 at B according to the present invention.

Fig. 9 is a schematic front structural view of a clamping mechanism according to the present invention.

Fig. 10 is a schematic back structure view of the clamping mechanism according to the present invention.

The reference signs are: 1. a frame; 2. cutting the cutter wheel; 3. a cutting blade; 4. an arc-shaped clamping block; 5. a storage box; 6. a rotating shaft; 7. a belt transport mechanism; 8. a first servo motor; 9. moving the plate; 10. a telescopic rod; 11. a protective shell; 12. a gear with missing teeth; 13. a spur plate; 14. a connecting plate; 15. a fixed block; 16. a connecting rod; 17. a telescopic motor; 18. a first chute; 19. a second chute; 20. a baffle plate; 21. A ball bearing; 22. a guide plate; 23. a bellows; 24. extruding the air bag; 25. an exhaust hole; 26. a gas supply pipe; 27. a connecting pipe; 28. a gas delivery pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The device for processing the anti-flanging welding end face of the lining pipe as shown in the attached figures 1-10 comprises a frame 1, two horizontal cutting knife wheels 2 are symmetrically arranged on two sides of the inside of the frame 1, the cutting knife wheels 2 are the prior art and are not described in more detail herein, the ends of two lining pipes are cut by using the cutting knife wheels 2, one cutting knife wheel 2 cuts the upper half part of the end part of a first lining pipe, the other cutting knife wheel 2 cuts the lower half part of the end part of a second lining pipe, cutting blades 3 are arranged on the upper side and the lower side of the inside of the frame 1, the cutting blades 3 are arranged into a long strip shape, the cutting direction of the cutting blades 3 is vertical to the cutting direction of the cutting knife wheels 2, the two cutting blades 3 are close to the middle from two sides of the lining pipe, so as to cut the horizontal plane of the lining pipe, and through the matching of the two cutting knife wheels 2 and the two cutting blades 3, cut the tip of interior bushing pipe, form the shape of adaptation, area when the contact of increase inside bushing pipe tip, the bilateral symmetry of frame 1 is provided with receiver 5, and cutting knife flywheel 2 is accomodate inside receiver 5.

Concretely, drive assembly is installed in the outside of cutting break bar 2, drive assembly sets up inside receiver 5, drive assembly includes movable plate 9, pivot 6 is installed to a tip of movable plate 9, pivot 6 passes cutting break bar 2 and drives cutting break bar 2 and rotate, first servo motor 8 is installed to another tip of pivot 6, connect through 7 transmissions of belt transmission mechanism between the output of first servo motor 8 and the top of pivot 6, belt transmission mechanism 7 is prior art, conventional belt transmission is all realizable, belt transmission mechanism 7's outside sets up protecting crust 11, be used for protecting the structure of inside, the damage of the sweeps that produces when reducing the cutting to inner structure.

Further, the slider is installed on the top of movable plate 9, and linear slide rail is installed to the below of movable plate 9, slider and slide rail sliding connection, and telescopic link 10 is installed in the outside of receiver 5, and the output of telescopic link 10 passes the lateral wall of receiver 5 and extends to receiver 5 inside and slider fixed connection.

It is worth to be noted that two cutting blades 3 are respectively positioned at two sides of a lining pipe, one cutting blade 3 is positioned above a first lining pipe, the other cutting blade 3 is positioned below a second lining pipe, one end, far away from a knife tip, of each cutting blade 3 is connected with a tooth-missing gear 12, one side of each tooth-missing gear 12 is provided with a straight-tooth plate 13, the tooth-missing gear 12 is meshed with the straight-tooth plate 13, the straight-tooth plate 13 slides in a rack 1 through a fixing frame, the fixing frame is a vertically arranged supporting rod, the top end of each fixing frame is fixedly connected with the inner top wall of the rack 1, the bottom end of each fixing frame is provided with a fixing block 15 vertically staggered with the supporting rod, the fixing block 15 is fixed through the supporting rod, the cross section of the fixing block 15 is shaped like 21274, a connecting plate 14 is arranged at the position, corresponding to the fixing block 15, the connecting plate 14 is arranged in the fixing block 15, the straight-tooth plate 13 is slidably connected with the fixing block 15 through the connecting plate 14, first spout 18 has all been seted up to the upper and lower surface of connecting plate 14, the cross section of first spout 18 sets up into the semicircle, second spout 19 has been seted up to the inside wall of fixed block 15, the structure looks adaptation of first spout 18 and second spout 19, the equidistance distributes about the inside of second spout 19 has a plurality of baffle 20, install ball 21 that can roll in situ between two baffle 20, the second spout 19 and the first spout 18 of ball 21 form a cross section and are circular shape rolling slot, two baffle 20 divide into an independent cavity with the partial inner chamber of second spout 19, ball 21 is in the inside of this cavity, and through the rotation of ball 21, change the sliding friction of connecting plate 14 and fixed block 15 into the rolling friction of ball 21, reduce the structure and generate heat, the life of extension structure.

Besides, the end of the frame 1 is provided with a clamping mechanism, the clamping mechanism comprises arc-shaped clamping blocks 4, the number of the arc-shaped clamping blocks 4 is set into a plurality of blocks, the inside of each arc-shaped clamping block 4 is provided with a cavity, the arc-shaped clamping blocks 4 are distributed in a circumferential array, two adjacent arc-shaped clamping blocks 4 are connected through a corrugated pipe 23, the inner side wall of each arc-shaped clamping block 4 is provided with an extrusion air bag 24, the extrusion air bags 24 are communicated with the inner cavity of each arc-shaped clamping block 4, the edge of each extrusion air bag 24 is connected with the inner side wall of each arc-shaped clamping block 4, the inner cavities of the two are communicated, the outer side of each arc-shaped clamping block 4 is provided with an air supply pipe 26, the air supply pipes 26 are communicated into a whole through a connecting pipe 27, the middle part of one air supply pipe 26 is communicated with an air supply pipe 28, the air supply pipe 28 is externally connected with an air pump, one side of each extrusion air bag 24 is provided with four exhaust holes 25, the exhaust holes 25 are obliquely arranged, one side of arc-shaped clamping block 4 is connected with deflector 22, and the smooth cambered surface of the inside wall formation of deflector 22, deflector 22 lead to the inside lining pipe to lead into between four arc-shaped clamping block 4 with the inside lining pipe.

The embodiment also provides a treatment process for the anti-flanging welding end face of the lining pipe, which comprises the following specific operation steps:

the method comprises the following steps: clamping the inner lining pipes, moving the rack 1 to the position where the two inner lining pipes are welded, wherein the inner lining pipes enter between the arc-shaped clamping blocks 4 along the guide plate 22, then blowing air to the air conveying pipe 28 through an external air blowing pump, and the air in the air conveying pipe 28 is uniformly distributed into the air supply pipes 26 through the connecting pipe 27, so that the air enters into the extrusion air bag 24 through the cavities of the arc-shaped clamping blocks 4, the extrusion air bag 24 expands, the outer side walls of the inner lining pipes are wrapped, and the inner lining pipes are clamped;

step two: the welding end face treatment is divided into two parts:

the third part is that the upper semicircle and the lower semicircle of the cross section of the lining pipe are processed, when the straight-tooth plate 13 is meshed with the tooth-lacking gear 12 at the beginning, the cutting blade 3 is in an inclined state, after the lining pipe is clamped, the telescopic motor 17 is driven, the output end of the telescopic motor 17 drives the connecting rod 16, so that the connecting rod 16 makes linear motion and continuously moves forwards in the rack 1, the straight-tooth plate 13 can keep stable linear motion under the supporting action of the fixing frame, the straight-tooth plate 13 makes linear motion to drive the tooth-lacking gear 12 to rotate, so as to cut the lining pipe, and the telescopic motor 17 controls the connecting rod 16 to make linear reciprocating motion, so that the cutting blade 3 continuously cuts the lining pipe, so as to cut the upper semicircle and the lower semicircle of the cross section of the lining pipe, and the two telescopic motors 17 act together to drive the upper semicircle and the lower semicircle of the cross section of the end part, close to the two lining pipes, which are cut away, of the cross section, to be close to each other;

and the fourth part is used for processing the horizontal part of the lining pipe, after seven shapes of the cross section of the end part are finished, the telescopic rod 10 is started, the output end of the telescopic rod 10 drives the movable plate 9 to move towards the inside of the rack 1, meanwhile, the first servo motor 8 is started, the output end of the first servo motor 8 drives the rotating shaft 6 to rotate through the belt transmission mechanism 7, the rotating shaft 6 rotates to drive the cutting knife wheels 2 to rotate, the continuously rotating cutting knife wheels 2 cut the side walls of the lining pipe, meanwhile, the output end of the telescopic rod 10 pushes the movable plate 9 to move forwards, so that the horizontal position of the side walls of the lining pipe is cut, meanwhile, the cutting knife wheels 2 on the two sides synchronously cut the two sides of the lining pipe, the welding end faces of the lining pipe are processed, and the contact areas of the two lining pipes are increased.

Step three: clearance, arc clamp splice 4 carry out the centre gripping back to the inside bushing pipe, because exhaust hole 25 slope sets up, exhaust hole 25 is towards the position of bushing pipe cutting, because the continuous inside gas delivery of making a sound arc clamp splice 4 of air-blowing pump, and the gas of carrying constantly blows to the cutting position through exhaust hole 25, cools down the cutting position to the sweeps that will produce during the cutting is cleared up.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiment of the invention, only the structures related to the disclosed embodiment are related, other structures can refer to common design, and the same embodiment and different embodiments of the invention can be combined mutually under the condition of no conflict;

and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.

Claims

1. The utility model provides a welt welding terminal surface processing apparatus is prevented to interior bushing pipe, includes frame (1), its characterized in that: the inside bilateral symmetry of frame (1) is provided with two horizontally cutting break bar (2), cutting blade (3) are installed to both sides about the inside of frame (1), the cutting direction and the cutting break bar (2) cutting direction of cutting blade (3) are perpendicular, the bilateral symmetry of frame (1) is provided with receiver (5), and cutting break bar (2) are accomodate inside receiver (5).

2. The device for processing the anti-flanging welded end face of the lining pipe according to claim 1, wherein: drive assembly is installed in the outside of cutting break bar (2), drive assembly sets up inside receiver (5), drive assembly includes movable plate (9), pivot (6) are installed to a tip of movable plate (9), and pivot (6) are passed cutting break bar (2) and are driven cutting break bar (2) and rotate, a servo motor (8) are installed to another tip of pivot (6), connect through belt transmission mechanism (7) transmission between the output of a servo motor (8) and the top of pivot (6), the outside of belt transmission mechanism (7) sets up protecting crust (11).

3. The device for processing the anti-flanging welded end face of the lining pipe according to claim 2, wherein: the slider is installed on the top of movable plate (9), linear slide rail is installed to the below of movable plate (9), slider and slide rail sliding connection, telescopic link (10) are installed in the outside of receiver (5), the output of telescopic link (10) passes the lateral wall of receiver (5) and extends to receiver (5) inside and slider fixed connection.

4. The device for processing the anti-flanging welded end face of the lining pipe according to claim 1, wherein: two cutting blade (3) are located the both sides of bushing pipe respectively, the one end of keeping away from the knife tip of cutting blade (3) is connected and is lacked tooth gear (12), the one side that lacks tooth gear (12) is equipped with spur rack (13), lack tooth gear (12) and spur rack (13) meshing, spur rack (13) are through the mount at the inside slip of frame (1), and the mount is the bracing piece of a vertical setting, and the roof fixed connection in the top and frame (1), spur rack (13) can be in bottom position department slip.

5. The device for processing the anti-flanging welded end face of the lining pipe as claimed in claim 4, wherein: the bottom end of the fixing frame is provided with fixing blocks (15) vertically staggered with the fixing frame, the cross section of each fixing block (15) is shaped like a v-21274, a connecting plate (14) is arranged at the position, corresponding to the corresponding fixing block (15), of the straight-tooth plate (13), the connecting plate (14) is arranged inside the corresponding fixing block (15), and the straight-tooth plate (13) is connected with the fixing block (15) in a sliding mode through the connecting plate (14).

6. The device for processing the anti-flanging welded end face of the lining pipe according to claim 5, wherein: first spout (18) have all been seted up to the upper and lower surface of connecting plate (14), the cross section of first spout (18) sets up semicircular in shape, second spout (19) have been seted up to the inside wall of fixed block (15), the structure looks adaptation of first spout (18) and second spout (19), the equidistance distributes about the inside of second spout (19) has a plurality of baffle (20), installs ball (21) that can roll on the spot between two baffle (20), second spout (19) and first spout (18) of ball (21) form a cross section and be circular shape slot rolling, and ball (21) are located inside the slot rolling.

7. The device for processing the anti-flanging welded end face of the lining pipe according to claim 1, wherein: fixture is installed to the tip of frame (1), fixture includes arc clamp splice (4), a plurality of is set to the quantity of arc clamp splice (4), and a plurality of arc clamp splice (4) become circumference array distribution, adjacent two be connected through bellows (23) between arc clamp splice (4), the inside wall of arc clamp splice (4) is equipped with extrusion gasbag (24), extrusion gasbag (24) communicate with each other with the inner chamber of arc clamp splice (4) and are connected, the outside of arc clamp splice (4) is equipped with air supply pipe (26), and a plurality of air supply pipe (26) communicate into a whole through connecting pipe (27), and the middle part intercommunication of one of them air supply pipe (26) has air-supply pipe (28), and air-supply pipe (28) external air pump.

8. The device for processing the anti-flanging welded end face of the lining pipe according to claim 7, wherein: at least one vent hole (25) is formed in one side of the extrusion air bag (24), and the vent hole (25) is obliquely arranged.

9. The device for processing the anti-flanging welded end face of the lining pipe according to claim 7, wherein: one side of the arc-shaped clamping block (4) is connected with a guide plate (22), and the inner side wall of the guide plate (22) forms a smooth arc surface.

10. The apparatus for processing the anti-flanging welded end face of the lining pipe according to any one of claims 1 to 9, wherein: the method also comprises a treatment process of the anti-flanging welding end face of the lining pipe, and the specific operation steps are as follows:

the method comprises the following steps: clamping the inner lining pipes, moving the rack (1) to the position where the two inner lining pipes are welded, wherein the inner lining pipes enter between the arc-shaped clamping blocks (4) along the guide plate (22), then blowing air to the air conveying pipes (28) through an external air blowing pump, and the air in the air conveying pipes (28) is uniformly distributed into the air supply pipes (26) through the connecting pipes (27), so that the air enters into the extrusion air bags (24) through the cavities of the arc-shaped clamping blocks (4), the extrusion air bags (24) are expanded, the outer side walls of the inner lining pipes are wrapped, and the inner lining pipes are clamped;

step two: the welding end face treatment is divided into two parts:

the first part, semicircle processing about the interior bushing pipe cross section, at first, when spur-rack (13) and scarce tooth gear (12) meshing, cutting blade (3) are in the state of slope, hold the back to the interior bushing pipe additional, drive flexible motor (17), the output of flexible motor (17) drives connecting rod (16), make connecting rod (16) be linear motion and constantly forward in frame (1) inside, spur-rack (13) can keep stable linear motion under the supporting action of mount, spur-rack (13) linear motion drives scarce tooth gear (12) and rotates, thereby cut interior bushing pipe, and flexible motor (17) control connecting rod (16) do straight reciprocating motion, thereby make cutting blade (3) constantly cut interior bushing pipe, and then will line the last semicircle part cutting of bushing pipe cross section, two flexible motor (17) combined action, driving the upper semicircle and the lower semicircle of the cross section of the end parts of the two lining pipes which are close to each other to be cut;

a second part, which is used for processing the horizontal part of the lining pipe, and when the cross section of the end part is shaped into seven parts, the telescopic rod (10) is started, the output end of the telescopic rod (10) drives the movable plate (9) to move towards the inside of the frame (1), meanwhile, a first servo motor (8) is started, the output end of the first servo motor (8) drives a rotating shaft (6) to rotate through a belt transmission mechanism (7), the rotating shaft (6) drives a cutting knife wheel (2) to rotate, the cutting knife wheel (2) which rotates continuously cuts the side wall of the lining pipe, meanwhile, the output end of the telescopic rod (10) pushes the movable plate (9) to move forwards, thereby cutting the lateral wall horizontal position of interior bushing pipe, the cutting break bar (2) of both sides simultaneously cuts the both sides of interior bushing pipe in step to the welding terminal surface with interior bushing pipe is handled, increases the area of contact of two interior bushing pipes.

Step three: the clearance, arc clamp splice (4) carry out the centre gripping back to the inside bushing pipe, because exhaust hole (25) slope sets up, exhaust hole (25) are towards the position of bushing pipe cutting, because the continuous inside transport gas of arc clamp splice (4) of making a sound of air-blowing pump, and the gas of constantly carrying blows to the cutting position through exhaust hole (25), cools down the cutting position to the sweeps that will produce during the cutting is cleared up.