CN110976674A

CN110976674A - Alloy pipe production expanding equipment

Info

Publication number: CN110976674A
Application number: CN201911084014.5A
Authority: CN
Inventors: 张延俊
Original assignee: Anhui Laixin Precision Special Steel Pipe Co Ltd
Current assignee: Anhui Laixin Precision Special Steel Pipe Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-04-10

Abstract

The invention relates to the technical field of alloy pipe processing equipment, in particular to alloy pipe production expanding equipment which comprises a processing table, wherein four bases are welded on the periphery of the outer wall of the bottom of the processing table, a first fixing plate is welded on one side of the outer wall of the top of the processing table, a motor is fixedly installed on the outer wall of one side of the first fixing plate through bolts, a clamping assembly is welded at the output end of the motor, the clamping assembly is located on the outer wall of the other side, away from the motor, of the first fixing plate, an alloy pipe is arranged on one side, away from the first fixing plate, of the clamping assembly, and a second fixing plate in the same horizontal line is welded on the outer wall. The invention has the advantages that the method of local heating and synchronous pipe expansion is adopted, the high-efficiency diameter expansion of the large-diameter alloy pipe is realized, the diameter expansion of the alloy pipe can be rapidly realized, the diameter expansion ratio is high, the production efficiency is high, and the attractiveness and market competitiveness of the alloy pipe after diameter expansion are improved.

Description

Alloy pipe production expanding equipment

Technical Field

The invention relates to the technical field of alloy pipe processing equipment, in particular to alloy pipe production expanding equipment.

Background

As is known, an alloy pipe has the characteristics of low density and high strength, is widely used in life, is very common in tunnels with high humidity and high strength requirements, and sometimes needs to be subjected to reducing forming in order to meet actual requirements.

Chinese patent No. CN207325637U discloses a reducing forming apparatus for tunnel aluminum alloy tubes, which comprises a support arm, a transmission shaft, a driven wheel, a belt, a first motor, a rotating shaft, a driving wheel, a first bearing seat, a base, a chuck, an arc plate, a hydraulic cylinder, an installation plate, a heating device, a threaded rod, a second bearing seat, a second motor, a connecting rod and a support plate.

However, the reducing forming equipment for the tunnel aluminum alloy pipe has an excessively single structure, cannot uniformly heat the alloy pipe, has large deformation resistance and is difficult to form the reducing of the alloy pipe, so that the reducing forming speed of the aluminum alloy pipe is low, the efficiency is low, the single-pass deformation amount of the expanding and stretching process is small, the number of processing passes is large, intermediate annealing is required, and the process flow is long, thereby being not beneficial to wide popularization and popularization.

Disclosure of Invention

The invention aims to provide diameter expanding equipment for producing an alloy pipe, which aims to solve the problems that the structure proposed in the background technology is too single, the alloy pipe cannot be uniformly heated, the deformation resistance of the alloy pipe is large, the diameter reducing forming of the alloy pipe is difficult, the diameter reducing forming speed of the alloy pipe is slow, the efficiency is not high, the diameter expanding and stretching process has small deformation amount in a single pass, multiple processing passes and intermediate annealing.

The technical scheme of the invention is as follows: an alloy pipe production expanding device comprises a processing table, wherein four bases are welded on the periphery of the outer wall of the bottom of the processing table, a first fixing plate is welded on one side of the outer wall of the top of the processing table, a motor is fixedly installed on the outer wall of one side of the first fixing plate through bolts, a clamping assembly is welded at the output end of the motor, the clamping assembly is positioned on the outer wall of the other side, away from the motor, of the first fixing plate, an alloy pipe is arranged on one side, away from the first fixing plate, of the clamping assembly, a second fixing plate which is positioned on the same horizontal line is welded on the outer wall of the other side, away from the first fixing plate, of the second fixing plate, a hydraulic cylinder is fixedly installed at the position, close to the axis of the outer wall of one side of the first fixing plate, through bolts, an expanding column is arranged at, and be provided with the window on the front outer wall of guard plate, fixed mounting has the operation panel on the bottom outer wall that the processing platform is close to the window, and the axle center department fixed mounting of guard plate top outer wall has the water tank, fixedly connected with connecting pipe on the top outer wall of water tank.

Further, the axle center department of processing bench top outer wall is provided with the collection liquid subassembly, and is provided with spacing subassembly on the processing platform is close to the both sides outer wall of collection liquid subassembly, the processing platform is provided with the direction subassembly on being close to the both sides outer wall of spacing subassembly, and the processing platform welds on being close to the inner wall under the collection liquid subassembly and has the header tank, there is the water pump through bolt fixed mounting on the bottom inner wall that the processing platform is close to header tank one side, and the water pump passes through and is fixed connection between pipeline and the header tank, the connecting pipe is kept away from and is linked together through the water pump between the other end of water tank and the header.

Further, collect the liquid subassembly including album liquid filter plate, it is the trapezoidal structure to collect the liquid filter plate, and has the handle through screw fixed mounting on the both sides inner wall of collection liquid filter plate, and collects liquid filter plate both sides and be provided with four lock posts that the equidistance is upper and lower structural distribution, the one end welding of lock post has the pull ring, and lock post swing joint is in the both sides of collecting the liquid filter plate, the lock post has cup jointed first spring on being located the inside outer wall of collection liquid filter plate, and the welding has the limiting plate on the lock post is close to one side outer wall of first spring.

Further, spacing subassembly includes clamp splice and lower clamp splice, the clamp splice welding is on the top outer wall of processing platform down, and the clamp splice is circular-arc structure with last clamp splice down, the pull rod has all been welded to the both sides of clamp splice top outer wall down, and the both sides welding of going up clamp splice bottom outer wall has the sleeve, the pull rod is T type structure, and pull rod swing joint is in telescopic inside, the second spring has been cup jointed on the outer wall that the pull rod is located sleeve inside.

Further, the guide assembly comprises two lug plates, the lug plates are welded on two sides of the outer wall of the top of the processing table, and a guide roll shaft is movably connected to the inner wall between the lug plates through a rotating shaft.

Further, the welding has the adiabatic sleeve that is upper and lower structure distribution on the guard plate is close to one side outer wall of alloy pipe, and adiabatic telescopic inside fixedly connected with electric heat solenoid, the alloy pipe is located the axle center department of electric heat solenoid, and is provided with cooling module on the guard plate is close to one side inner wall of adiabatic sleeve.

Furthermore, one end, located inside the protection plate, of the diameter-expanding column is fixedly connected with a diameter-expanding core print, the diameter-expanding core print comprises a core print inlet section, a core print diameter-expanding section and a core print diameter-sizing section, and the core print inlet section, the core print diameter-expanding section and the core print diameter-sizing section are of an integrated structure.

Further, cooling module is including dividing the liquid ring, divide and be fixed connection between liquid ring and the guard plate, and divide on the inner wall of liquid ring fixedly connected with equidistance to be the shower nozzle that the annular structure distributes, divide the liquid ring to communicate each other between pipeline and the water tank.

Further, the centre gripping subassembly includes a spacing section of thick bamboo, a spacing section of thick bamboo is fixed connection with the output of motor, and the welding of the inside axle center department of a spacing section of thick bamboo has a location section of thick bamboo, threaded connection has the centre gripping screw rod that the equidistance is the annular structure and distributes on the outer wall all around of a spacing section of thick bamboo, and the one end welding of centre gripping screw rod has rotatory handle, the other end welding that rotatory handle was kept away from to the centre gripping screw rod has the briquetting, and is provided with the skid resistant course on the outer wall that the centre gripping.

The invention provides an alloy pipe production expanding device through improvement, compared with the prior art, the alloy pipe production expanding device has the following improvements and advantages:

(1) through the clamping assembly, after the alloy pipe is inserted into the limiting cylinder, the rotating handle is rotated to enable the clamping screw to push the pressing block to approach the alloy pipe, so that the alloy pipe is positioned, the alloy pipe is more stable and firm in diameter expansion, the structure is simple, and the operation is convenient.

(2) Through the guide assembly and the limiting assembly, when the hydraulic cylinder pushes the expanding column to move forwards, the guide roller shaft plays a good role in guiding the expanding column, the stability of the expanding column and the alloy pipe in the machining process is improved, and the upper clamping block and the lower clamping block play a good limiting effect on the alloy pipe and the expanding column through the interaction of the pull rod, the sleeve and the second spring, so that the expanding machining efficiency of the alloy pipe is improved.

(3) Through the cooling module and the liquid collecting component that set up, when the water pump carried the inside water of header tank to the water tank through the connecting pipe, when carrying to dividing the liquid ring through the shower nozzle blowout via the water tank, can carry out timely effectual cooling to alloy pipe hole enlargement position and handle, and the water after the blowout falls into the inside of header tank after collecting the liquid filter plate and carries out the next time and circulate through the water pump, has promoted the machining efficiency of alloy pipe hole enlargement, fine reached the effect of cooling to the alloy pipe.

(4) The invention adopts the methods of local heating and synchronous pipe expansion, realizes the high-efficiency diameter expansion of the large-diameter alloy pipe, can quickly expand the diameter of the alloy pipe, has high diameter expansion ratio and high production efficiency, and improves the aesthetic degree and market competitiveness of the alloy pipe after the diameter expansion.

Drawings

The invention is further explained below with reference to the figures and examples:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the processing station configuration of the present invention;

FIG. 3 is a schematic view of the liquid collection assembly of the present invention;

FIG. 4 is a schematic view of the spacing assembly of the present invention;

FIG. 5 is a schematic view of the guide assembly of the present invention;

FIG. 6 is a schematic view of the internal structure of the fender of the invention;

FIG. 7 is a schematic view of the cooling assembly of the present invention;

fig. 8 is a schematic view of the structure of the clamping assembly of the present invention.

Description of reference numerals:

1 processing table, 2 base, 3 operating table, 4 first fixing plate, 5 motor, 6 clamping assembly, 7 alloy pipe, 8 protective plate, 9 water tank, 10 connecting pipe, 11 window, 12 second fixing plate, 13 hydraulic cylinder, 14 expanding column, 15 guiding assembly, 16 limiting assembly, 17 liquid collecting assembly, 18 water collecting tank, 19 water pump, 20 liquid collecting filter plate, 21 handle, 22 pull ring, 23 locking column, 24 first spring, 25 limiting plate, 26 upper clamping block, 27 lower clamping block, 28 pull rod, 29 sleeve, 30 second spring, 31 ear plate, 32 guiding roll shaft, 33 heat insulation sleeve, 34 electric heating solenoid, 35 cooling assembly, 36 expanding core head, 37 core head inlet section, 38 core head expanding section, 39 core head diameter section, 40 liquid separating ring, 41 spray head, 42 limiting cylinder, 43 rotating handle, 44 clamping screw rod, 45 pressing block, 46 antiskid layer and 47 positioning cylinder.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 8, and the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention provides an alloy pipe production expanding device through improvement, as shown in figures 1-8, comprising a processing table 1, four bases 2 are welded on the periphery of the outer wall of the bottom of the processing table 1, a first fixing plate 4 is welded on one side of the outer wall of the top of the processing table 1, a motor 5 is fixedly installed on the outer wall of one side of the first fixing plate 4 through bolts, a clamping assembly 6 is welded on the output end of the motor 5, the clamping assembly 6 is positioned on the outer wall of the other side of the first fixing plate 4 far away from the motor 5, an alloy pipe 7 is arranged on one side of the clamping assembly 6 far away from the first fixing plate 4, a second fixing plate 12 in the same horizontal line is welded on the outer wall of the other side of the processing table 1 far away from the first fixing plate 4, a hydraulic cylinder 13 is fixedly installed on the axle center of the outer wall of one side of the second fixing plate 12 close to, the outer wall at the front top of the machining table 1 is provided with a protection plate 8 which is distributed in an L-shaped structure through bolts, the front outer wall of the protection plate 8 is provided with a window 11, the outer wall of the bottom of the machining table 1, which is close to the window 11, is fixedly provided with an operating table 3, the axle center of the outer wall at the top of the protection plate 8 is fixedly provided with a water tank 9, the outer wall at the top of the water tank 9 is fixedly connected with a connecting pipe 10, and when the motor 5 drives the alloy pipe 7 to rotate through a limiting cylinder 42, the expanding efficiency of the alloy pipe 7 can be well.

Further, the axle center department of 1 top outer wall of processing platform is provided with album liquid subassembly 17, and processing platform 1 is provided with spacing subassembly 16 on being close to the both sides outer wall of album liquid subassembly 17, processing platform 1 is provided with direction subassembly 15 on being close to the both sides outer wall of spacing subassembly 16, and processing platform 1 welds on being close to the inner wall under album liquid subassembly 17 and has header tank 18, there is water pump 19 through bolt fixed mounting on the bottom inner wall of processing platform 1 near header tank 18 one side, and water pump 19 is fixed connection through between pipeline and the header tank 18, the other end that water tank 9 was kept away from to connecting pipe 10 communicates each other through water pump 19 between header tank 18.

Further, the liquid collecting component 17 comprises a liquid collecting filter plate 20, the liquid collecting filter plate 20 is of an inverted trapezoid structure, handles 21 are fixedly installed on the inner walls of the two sides of the liquid collecting filter plate 20 through screws, four lock columns 23 which are distributed in an up-down structure at equal intervals are arranged on the two sides of the liquid collecting filter plate 20, pull rings 22 are welded at one ends of the lock columns 23, the lock columns 23 are movably connected to the two sides of the liquid collecting filter plate 20, first springs 24 are sleeved on the outer walls of the lock columns 23 located inside the liquid collecting filter plate 20, limiting plates 25 are welded on the outer walls of one sides, close to the first springs 24, of the lock columns 23, the liquid collecting component 17 is arranged, water in the water collecting tank 18 is conveyed to the water tank 9 through a connecting pipe 10 by the water pump 19, when the water is conveyed to the liquid distributing ring 40 through the water tank 9 and sprayed out through the spray nozzles 41, timely and effective cooling treatment can be carried out on the diameter expanding position of the alloy pipe 7, and the sprayed out water falls, the processing efficiency of the diameter expansion of the alloy pipe 7 is improved, and the effect of cooling the alloy pipe 7 is well achieved.

Further, the limiting assembly 16 comprises an upper clamping block 26 and a lower clamping block 27, the lower clamping block 27 is welded on the top outer wall of the processing table 1, the lower clamping block 27 and the upper clamping block 26 are in arc-shaped structures, pull rods 28 are welded on both sides of the outer wall of the top of the lower clamping block 27, and two sides of the outer wall of the bottom of the upper clamping block 26 are welded with sleeves 29, the pull rod 28 is in a T-shaped structure, and the pull rod 28 is movably connected inside the sleeve 29, the outer wall of the pull rod 28, which is positioned inside the sleeve 29, is sleeved with the second spring 30, the limit component 16 is arranged, when the hydraulic cylinder 13 pushes the expanding column 14 to move forwards, the guide roll shaft 32 plays a good role in guiding the expanding column 14, improves the stability of the expanding column 14 and the alloy pipe 7 in the processing process, and the upper clamping block 26 and the lower clamping block 27 have good limiting effect on the alloy pipe 7 and the expanding column 14 through the interaction of the pull rod 28, the sleeve 29 and the second spring 30.

Further, the guide assembly 15 comprises two lug plates 31, the lug plates 31 are welded on two sides of the outer wall of the top of the machining table 1, a guide roller shaft 32 is movably connected to the inner wall between the lug plates 31 through a rotating shaft, the guide assembly 15 is arranged, the alloy pipe 7 and the expanding column 14 move above the guide roller shaft 32, the pipe orifice is butted more accurately, and the expanding machining efficiency and accuracy of the alloy pipe 7 are improved.

Furthermore, the outer wall of one side, close to the alloy pipe 7, of the protection plate 8 is welded with a heat insulation sleeve 33 which is distributed in an up-down structure, an electric heating solenoid 34 is fixedly connected inside the heat insulation sleeve 33, the alloy pipe 7 is located at the axis of the electric heating solenoid 34, a cooling assembly 35 is arranged on the inner wall of one side, close to the heat insulation sleeve 33, of the protection plate 8, and the electric heating solenoid 34 can well heat the diameter expansion opening of the alloy pipe 7 timely and effectively, so that the efficiency of diameter expansion processing of the alloy pipe 7 is greatly improved, and efficient diameter expansion of the large-diameter alloy pipe 7 is realized by adopting a method of local heating and synchronous pipe expansion.

Furthermore, one end of the expanding column 14, which is located inside the protection plate 8, is fixedly connected with an expanding core print 36, the expanding core print 36 comprises a core print inlet section 37, a core print expanding section 38 and a core print sizing section 39, the core print inlet section 37, the core print expanding section 38 and the core print sizing section 39 are of an integrated structure, the alloy pipe 7 can be expanded rapidly, the diameter expanding proportion is high, the production efficiency is high, and the attractiveness and market competitiveness of the alloy pipe 7 after being expanded are improved.

Further, the cooling assembly 35 comprises a liquid separating ring 40, the liquid separating ring 40 is fixedly connected with the protection plate 8, the inner wall of the liquid separating ring 40 is fixedly connected with spray heads 41 which are distributed in an annular structure at equal intervals, the liquid separating ring 40 is communicated with the water tank 9 through a pipeline, and water is sprayed out from the liquid separating ring 40 through the spray heads 41 to cool the diameter expanding part of the alloy pipe 7 through the cooling assembly 35, so that the diameter expanding processing efficiency of the alloy pipe 7 is improved.

Further, the clamping assembly 6 comprises a limiting cylinder 42, the limiting cylinder 42 is fixedly connected with the output end of the motor 5, a positioning cylinder 47 is welded at the axis inside the limiting cylinder 42, clamping screws 44 which are distributed in an annular structure at equal intervals are connected to the peripheral outer wall of the limiting cylinder 42 in a threaded manner, a rotating handle 43 is welded at one end of each clamping screw 44, a pressing block 45 is welded at the other end, far away from the rotating handle 43, of each clamping screw 44, an anti-slip layer 46 is arranged on the outer wall, far away from the other side of each clamping screw 44, of each pressing block 45, the clamping assembly 6 is arranged, and after the alloy pipe 7 is inserted into the limiting cylinder 42, the rotating handle 43 is rotated to enable the clamping screws 44 to push the pressing blocks 45 to approach the alloy pipe 7, so that the alloy pipe 7 is positioned, the alloy pipe 7 is more stably and firmly expanded, the structure is simple.

The working principle of the invention is as follows: when the alloy pipe production expanding device is used, an operator firstly inserts an alloy pipe 7 to be expanded to a position between an upper clamping block 26 and a lower clamping block 27, then inserts the alloy pipe 7 into a limiting cylinder 42, rotates a rotating handle 43 outside the limiting cylinder 42, rotates the rotating handle 43 to enable a clamping screw 43 to push a pressing block 45 to approach the alloy pipe 7, so that the positioning of the alloy pipe 7 is achieved, the alloy pipe 7 is more stable and firm in expanding, the structure is simple, the operation is convenient, an electric heating solenoid 34 works to heat the expanded part of the alloy pipe 7, then a hydraulic cylinder 13 is started, the hydraulic cylinder 13 pushes an expanding column 14 to move to the heated inside of the caliber of the alloy pipe 7 on a guide roller shaft 32 to expand the alloy pipe 7, the local heating and synchronous pipe expanding methods are adopted to realize the efficient expanding of the large-diameter alloy pipe and can quickly expand the alloy pipe, the diameter expansion ratio is high, the production efficiency is high, after the diameter expansion of the alloy pipe 7 is completed, water in the water collecting tank 18 is conveyed to the water tank 9 through the connecting pipe 10 by the water pump 19, the water is conveyed to the liquid separating ring 40 through the water tank 9 and is sprayed out through the spray head 41, the temperature of the diameter expansion part of the alloy pipe 7 is effectively reduced in time, the sprayed water is filtered by the liquid collecting filter plate 20 and then falls into the water collecting tank 18 to be circulated next time through the water pump 19, the processing efficiency of the diameter expansion of the alloy pipe 7 is improved, the alloy pipe 7 is well cooled, the liquid collecting filter plate 20 is movably connected with the processing table 1 through the lock column 23, and the liquid collecting filter plate 20 is conveniently cleaned in time.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An alloy pipe production expanding equipment, which is characterized in that: comprises a processing table (1), four bases (2) are welded on the periphery of the outer wall of the bottom of the processing table (1), a first fixing plate (4) is welded on one side of the outer wall of the top of the processing table (1), a motor (5) is fixedly installed on the outer wall of one side of the first fixing plate (4) through bolts, an alloy pipe (7) is arranged on one side, away from the first fixing plate (4), of the clamping assembly (6), a second fixing plate (12) on the same horizontal line is welded on the outer wall of the other side, away from the first fixing plate (4), of the processing table (1), a hydraulic cylinder (13) is fixedly installed at the axle center, close to the outer wall of one side of the first fixing plate (4), of the second fixing plate (12) through bolts, the output of pneumatic cylinder (13) is provided with hole enlargement post (14), there is guard plate (8) that is L type structure distribution through bolt fixed mounting on the outer wall at processing platform (1) front top, and is provided with window (11) on the front outer wall of guard plate (8), fixed mounting has operation panel (3) on the bottom outer wall that processing platform (1) is close to window (11), and the axle center department fixed mounting of guard plate (8) top outer wall has water tank (9), fixedly connected with connecting pipe (10) on the top outer wall of water tank (9).

2. An alloy pipe production expanding device according to claim 1, wherein: processing platform (1) top outer wall's axle center department is provided with liquid collecting component (17), and is provided with spacing subassembly (16) on processing platform (1) is close to the both sides outer wall of liquid collecting component (17), processing platform (1) is provided with direction subassembly (15) on being close to the both sides outer wall of spacing subassembly (16), and processing platform (1) welds on being close to the inner wall under liquid collecting component (17) and has header tank (18), there is water pump (19) through bolt fixed mounting on processing platform (1) is close to the bottom inner wall of header tank (18) one side, and is fixed connection between water pump (19) through pipeline and header tank (18), communicate each other through water pump (19) between the other end that water tank (9) was kept away from in connecting pipe (10) and header tank (18).

3. An alloy pipe production expanding device according to claim 2, wherein: liquid collection subassembly (17) are including album liquid filter plate (20), album liquid filter plate (20) are down the trapezium structure, and have handle (21) through screw fixed mounting on the both sides inner wall of album liquid filter plate (20), and album liquid filter plate (20) both sides are provided with four lock posts (23) that the equidistance was structural distribution about being, the one end welding of lock post (23) has pull ring (22), and lock post (23) swing joint is in the both sides of album liquid filter plate (20), first spring (24) have been cup jointed on lock post (23) are located the outer wall of album liquid filter plate (20) inside, and the welding has limiting plate (25) on lock post (23) is close to one side outer wall of first spring (24).

4. An alloy pipe production expanding device according to claim 2, wherein: spacing subassembly (16) are including clamp splice (26) and lower clamp splice (27), clamp splice (27) welding is on the top outer wall of processing platform (1) down, and clamp splice (27) are circular-arc structure with last clamp splice (26) down, pull rod (28) have all been welded to the both sides of clamp splice (27) top outer wall down, and the both sides welding of going up clamp splice (26) bottom outer wall has sleeve (29), pull rod (28) are T type structure, and pull rod (28) swing joint is in the inside of sleeve (29), second spring (30) have been cup jointed on the outer wall that pull rod (28) are located sleeve (29) inside.

5. An alloy pipe production expanding device according to claim 2, wherein: the guide assembly (15) comprises two lug plates (31), the lug plates (31) are welded on two sides of the outer wall of the top of the processing table (1), and guide roll shafts (32) are movably connected to the inner wall between the lug plates (31) through rotating shafts.

6. An alloy pipe production expanding device according to claim 1, wherein: the welding has heat insulation sleeve (33) that is upper and lower structure and distributes on one side outer wall that guard plate (8) are close to alloy pipe (7), and the inside fixedly connected with electric heat solenoid (34) of heat insulation sleeve (33), alloy pipe (7) are located the axle center department of electric heat solenoid (34), and are provided with cooling module (35) on one side inner wall that guard plate (8) are close to heat insulation sleeve (33).

7. An alloy pipe production expanding device according to claim 1, wherein: one end, located inside the protection plate (8), of the diameter expansion column (14) is fixedly connected with a diameter expansion core print (36), the diameter expansion core print (36) comprises a core print inlet section (37), a core print diameter expansion section (38) and a core print diameter fixing section (39), and the core print inlet section (37), the core print diameter expansion section (38) and the core print diameter fixing section (39) are of an integrated structure.

8. An alloy pipe production expanding device according to claim 6, wherein: cooling module (35) are including dividing liquid ring (40), divide and be fixed connection between liquid ring (40) and guard plate (8), and divide on the inner wall of liquid ring (40) fixedly connected with equidistance to be shower nozzle (41) that the annular structure distributes, divide liquid ring (40) to communicate each other between pipeline and water tank (9).

9. An alloy pipe production expanding device according to claim 1, wherein: centre gripping subassembly (6) are including a spacing section of thick bamboo (42), a spacing section of thick bamboo (42) is fixed connection with the output of motor (5), and the welding of the inside axle center department of a spacing section of thick bamboo (42) has a location section of thick bamboo (47), threaded connection has the centre gripping screw rod (44) that the equidistance is the annular structure and distributes on the outer wall all around of a spacing section of thick bamboo (42), and the one end welding of centre gripping screw rod (44) has rotatory handle (43), the other end welding that rotatory handle (43) were kept away from in centre gripping screw rod (44) has briquetting (45), and is provided with skid resistant course (46) on the outer wall of centre gripping screw rod (44) opposite side is.