CN116618491A - Pipe bending machine for bending steel pipe - Google Patents
Pipe bending machine for bending steel pipe Download PDFInfo
- Publication number
- CN116618491A CN116618491A CN202310493638.2A CN202310493638A CN116618491A CN 116618491 A CN116618491 A CN 116618491A CN 202310493638 A CN202310493638 A CN 202310493638A CN 116618491 A CN116618491 A CN 116618491A
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- pipe
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- close
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- 238000005452 bending Methods 0.000 title claims abstract description 66
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 27
- 239000010959 steel Substances 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 11
- 238000009423 ventilation Methods 0.000 description 10
- 239000000047 product Substances 0.000 description 6
- 238000013459 approach Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
- B21D45/02—Ejecting devices
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The application discloses a pipe bending machine for bending steel pipes, which comprises a workbench, wherein the top end of the workbench is slidably connected with a feeding assembly through a guide rail, the middle part of the feeding assembly is movably clamped with a pipe, the end part of the workbench, which is far away from the feeding assembly, is provided with a pipe bending die, a fixed die is arranged between the pipe bending die and the feeding assembly, a movable die is arranged opposite to the fixed die, the side surface of the movable die, which is far away from the feeding assembly, is provided with a jacking die, and the fixed die, the movable die and the jacking die are all positioned above the workbench. According to the pipe blanking device, the movable plate is arranged, when the pipe is fixed between the fixed die and the movable die, the pipe enters the inner side of the square through the communicating pipe, and when the pipe is blanked, gas is enabled to directly push the blanking plate to stretch out on the inner side of the square, so that the end face of the blanking plate, which is close to the pipe, can push the pipe to be far away from the outer side of the pipe bending die, blanking of the pipe is carried out, and the blanking efficiency of the pipe is improved.
Description
Technical Field
The application relates to the technical field of pipe production, in particular to a pipe bender for bending steel pipes.
Background
The steel pipe is bent and usually needs to be fixed by using a steel pipe bending machine, the steel pipe is fed into the groove on the surface of the annular die and the inner side of the groove of the square die through the fixing component, the square die synchronously rotates in the circumferential direction of the annular die while the annular die rotates, so that steel is bent to a required shape on the inner side of the annular die until the whole steel pipe is bent, and usually the tail end of the steel pipe can leave the inner side of the fixing component and is fed manually.
In the bending process of the steel pipe, the groove on the surface of the annular die is deeper than the square die according to the bending requirement of the steel pipe, so that after the steel pipe is stressed and bent, the steel pipe can be clamped into the inner side of the groove of the annular die, the steel pipe cannot be automatically fed, the feeding process is required to be manually participated, and the bending efficiency is reduced.
Disclosure of Invention
The application provides a pipe bending machine for bending steel pipes, which has the advantages of improving the surface quality of pipe fittings and facilitating blanking, and is used for solving the problems of large fixed abrasion loss when a coffin is bent and inconvenient blanking caused by clamping the pipe into an inner groove of a die after bending.
In order to achieve the above purpose, the application adopts the following technical scheme: the utility model provides a steel pipe bending is with bending machine, includes the workstation, there is feeding assembly on the top of workstation through guide rail sliding connection, feeding assembly's middle part activity joint has tubular product, feeding assembly's tip is kept away from to the workstation is equipped with the bend pipe mould, be equipped with the fixed mould between bend pipe mould and the feeding assembly, the opposite of fixed mould is equipped with the movable mould, feeding assembly's side is kept away from to the movable mould is equipped with the tight mould of top, fixed mould, movable mould and tight mould of top all are located the top of workstation, and arc wall has all been seted up to the contact surface between bend pipe mould, fixed mould, movable mould and the tight mould of top and the tubular product, the inside fixedly connected with of fixed mould surface arc wall is close to the fixed box of bend pipe mould one side, and the inboard cavity of fixed box, the inboard swing joint of fixed box has the fly leaf, and the one end of fly leaf stretches out the inboard of fixed box from the side that the fixed box is close to feeding assembly, the outside and the arc wall sliding connection of fixed mould surface, sealing connection between the outside of fly leaf and the fixed box.
Further, fixed box keeps away from one side fixed intercommunication that pay-off subassembly has the breather pipe, the top of workstation is connected with the fixed block that is located the fixed mould and is close to tubular product side below, the spout has been seted up on the top of fixed block, the spout runs through the fixed block and is close to the side of fixed mould and movable mould, the fixed block is opposite to the top part inboard of fixed mould and is connected with the elastic bag, the below fixedly connected with of movable mould can be at the inboard gliding fixed plate of spout, the outside fixedly connected with communicating pipe of elastic bag, one side fixedly connected with square that the curved pipe mould is close to tubular product, the side sliding connection that the square is close to tubular product has gliding flitch between square and tubular product, the one end that the elastic bag was kept away from to communicating pipe runs through fixed block and the inboard intercommunication of square.
Further, the shape of the fixed box is arc-shaped, the shape and the size of the fixed box are matched with those of an arc-shaped groove of the fixed mould, which is close to the movable mould, and the surface material of the fixed box is smooth.
Further, the movable plate is made of rubber, the movable plate is arc-shaped, and the side surface of the movable plate, which is close to the movable die, is closer to the movable die than the side surface of the fixed box, which is close to the movable die.
Further, the vent pipe is a one-way vent pipe, the inner side of the vent pipe is through the gas from the inner side of the fixed box to the inner side of the elastic bag, the communicating pipe is a one-way vent pipe, and the inner side of the communicating pipe is through the gas from the inner side of the elastic bag to the inner side of the square.
Further, the shape of spout is "L" font, and the fixed plate slides at the top of fixed block through the spout, the spout of seting up on fixed block top is divided into two rectangles about the fixed block, and two rectangles about the fixed block respectively be closest to a mutual coincidence in a angle of tight mould in top.
Further, the five surfaces on the outer side of the elastic bag are contacted with the inner side of the fixed block, one surface, close to the fixed mold, of the elastic bag is contacted with the side surface of the fixed plate when the pipe is bent, the elastic bag is an elastic air bag, and the elastic bag is kept in a self-contracted state.
Further, the inner side of the square block is sealed with the outer side of the blanking plate, and an arc-shaped groove which is matched with the outer side of the pipe is formed in the side surface, close to the pipe, of the blanking plate.
According to the pipe bending machine for bending the steel pipe, the movable plate is arranged, when the pipe is fixed between the fixed die and the movable die, the outer side of the pipe is directly close to the outer side of the movable plate, the outer side of the pipe and the movable plate synchronously move, abrasion between an arc-shaped groove of the fixed die and the outer side of the pipe is avoided, the movable plate moves to enter the inner side of the fixed box, gas on the inner side of the fixed box is pushed to enter the inner side of the elastic bag through the vent pipe, and then the gas enters the inner side of the square through the communicating pipe, so that the gas directly pushes the blanking plate to stretch out on the inner side of the square when the pipe is blanked, the end face of the blanking plate, which is close to the pipe, can push the pipe to be far away from the outer side of the pipe bending die, blanking of the pipe is carried out, and blanking efficiency of the pipe is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
The disclosure may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic perspective view of the structure of the present application;
FIG. 2 is a schematic diagram of the structure of the present application;
FIG. 3 is a schematic side view of a stent structure according to the present application;
FIG. 4 is a schematic side view of a movable mold structure according to the present application;
fig. 5 is an enlarged schematic view of the structure a in fig. 1 according to the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
Referring to fig. 1, a pipe bender for bending steel pipes comprises a workbench 1, wherein a feeding component 2 is slidably connected to the top end of the workbench 1 through a guide rail, a pipe 3 is movably clamped in the middle of the feeding component 2, a pipe bending die 4 is arranged at the end part of the workbench 1 far away from the feeding component 2, the pipe bending die 4 only rotates in the marked direction in the drawing, a fixed die 5 is arranged between the pipe bending die 4 and the feeding component 2, a movable die 6 is arranged opposite to the fixed die 5, a tightening die 7 is arranged on the side surface of the movable die 6 far away from the feeding component 2, the fixed die 5, the movable die 6 and the tightening die 7 are all arranged above the workbench 1, arc-shaped grooves are formed in contact surfaces among the pipe bending die 4, the fixed die 5, the movable die 6 and the tightening die 7 and the pipe 3, a fixed box 8 close to one side of the pipe bending die 4 is fixedly connected to the inner side of the fixed box 8, a movable plate 9 is movably connected to the inner side of the fixed box 8, one end of the movable plate 9 extends out of the inner side of the fixed box 8 close to the fixed box 2 from the side surface of the fixed box 8, and the outer side of the movable plate 9 is slidably connected with the fixed die 9 and the arc-shaped groove 8.
When the pipe 3 is bent, the jacking die 7 approaches to the direction of the pipe bending die 4 and extrudes the outer side of the pipe 3 together with the pipe bending die 4, the moving die 6 approaches to the outer side of the fixed die 5, so that the pipe 3 enters an arc groove between the fixed die 5 and the moving die 6 to be fixed, the outer side of the pipe 3 is attached to the outer side of the movable plate 9, the pipe bending die 4 is rotated, the jacking die 7 synchronously rotates along with the pipe bending die 4, the pipe 3 is driven by the arc groove between the pipe bending die 4 and the jacking die 7 to be bent, meanwhile, the feeding assembly 2 synchronously feeds out part of the pipe 3 to the direction of the pipe bending die 4, the bending process of the pipe 3 is facilitated, namely, the pipe 3 moves to enable the moving die 6 to synchronously move with the pipe 3, due to the friction force between the material of the movable plate 9 and the movable plate 9, the movement of the movable plate 9 and the pipe 3 is synchronous, namely, the synchronous movement between the movable plate 9 and the pipe 3 is replaced by the mutual friction between the fixed die 5 and the pipe 3, the surface of the pipe 3 is further reduced, and the surface quality of the pipe 3 after bending is improved.
Example two
Referring to fig. 2, a vent pipe 10 is fixedly connected to one side of the fixing box 8 far away from the feeding assembly 2, a fixing block 11 positioned below the side of the fixing die 5 near the pipe 3 is connected to the top end of the working table 1, when the fixing die 5 and the moving die 6 work, a gap between the fixing die 5 and the moving die 6 is positioned right above the fixing block 11, referring to fig. 3, a chute 12 is formed at the top end of the fixing block 11, the chute 12 penetrates through the side of the fixing block 11 near the fixing die 5 and the moving die 6, referring to fig. 4, an elastic bag 13 is connected to the inner side of the upper part of the fixing block 11 facing away from the fixing die 5, a fixing plate 14 capable of sliding inside the chute 12 is fixedly connected to the lower side of the moving die 6, a communicating pipe 15 is fixedly connected to the outer side of the elastic bag 13, a clamping block for extruding and closing the communicating pipe 15 is fixedly connected to the bottom end of the moving die 6, namely when the fixing die 5 and the moving die 6 jointly fix the pipe 3, the movable die 6 moves towards the direction of the fixed die 5, the movable die 6 drives the clamping block to move, the clamping block gradually extrudes the outer side of the communicating pipe 15 to enable the communicating pipe 15 to be closed, when the fixed die 5 and the movable die 6 are completely bent, the movable die 6 is completely far away from the fixed die 5 again, and further enables the movable die 6 to drive the clamping block to open the communicating pipe 15 to enable the communicating pipe 15 to be communicated, referring to fig. 5, one side of the pipe bending die 4 close to the pipe 3 is fixedly connected with a square 16, the side of the square 16 close to the pipe 3 is slidingly connected with a blanking plate 17 sliding between the square 16 and the pipe 3, one end of the communicating pipe 15 far away from the elastic bag 13 penetrates through the fixed block 11 and is communicated with the inner side of the square 16, when the pipe 3 is bent, the outer side of the pipe 3 is fixed between the pipe bending die 4 and the jacking die 7, the jacking die 7 synchronously rotates in the circumferential direction of the pipe bending die 4, the outside of the pipe 3 is synchronously fixed between the fixed die 5 and the movable die 6, in the bending process, the pipe 3 is pulled to move towards the direction of the pipe die 4 by the rotation of the pipe die 4, the feeding assembly 2 continuously stretches out of the pipe 3 towards the direction of the pipe die 4, meanwhile, the arc-shaped groove on the surface of the movable die 6 is a stress surface when the pipe 3 is bent, so that the movable die 6 can move along with the movement of the pipe 3, the arc-shaped groove of the fixed die 5 is not a bending stress surface, namely, the fixed die 5 does not move, and after one bending is finished, the fixed die 5 and the movable die 6 and the pipe die 4 and the jacking die 7 are mutually far away from each other by a certain distance, in the process, the clamping block at the bottom end of the movable die 6 can continuously keep a state of closing the communicating pipe 15, after the inner side of the feeding assembly 2 stretches out of the pipe 3 and positions the next bending position of the pipe 3, and after the fixed die 5 and the movable die 6 and the pipe die 4 and the jacking die 7 are combined again for subsequent bending, and one pipe 3 can be repeatedly carried out in different parts, therefore, when one pipe 3 is not completely bent, the fixed die 5 and the fixed die 6 is completely moved, the distance between the fixed die 5 and the fixed die 6 and the movable die 6 is completely far away from the pipe 3, namely, the distance between the fixed die 6 and the bent die 6 is completely and completely separated from the pipe die 5 after the fixed die 6 is completely and completely moved by the clamping die 5.
Referring to fig. 1-2, the shape of the fixed box 8 is circular arc, the shape and size of the fixed box 8 are matched with the arc-shaped groove of the fixed mould 5 close to the movable mould 6, the surface material of the fixed box 8 is smooth, the outer side of the fixed box 8 is fixedly communicated with a one-way air valve, the fixed box 8 supplements air to the inner side of the fixed box 8 through the one-way air valve, the shape of the fixed box 8 moves, the movable mould 6 is closer to the movable mould 6 than the fixed box 8 through the movable plate 9, and when the movable mould 6 pushes the pipe 3 to approach the inner side of the fixed mould 5, the outer side of the pipe 3 is only contacted with the outer side of the movable plate 9, so that friction loss between the pipe 3 and the fixed box 8 is avoided.
Referring to fig. 1 and 3, the movable plate 9 is made of rubber, the movable plate 9 is arc-shaped, the side surface of the movable plate 9, which is close to the movable die 6, is closer to the movable die 6 than the side surface of the fixed box 8, which is close to the movable die 6, the inner side of the fixed box 8 is connected with the movable plate 9 through a spring, so that the movable plate 9 is kept in a state of elastically stretching out of the fixed box 8 through the spring, after each bending of the pipe 3, the movable plate 9 releases the pipe 3, the outer side of the pipe 3 is not pushed by the movable die 6 to be close to the movable plate 9, so that the movable plate 9 is released again by the outer side of the pipe 3, and then the gas at the inner side of the fixed box 8 is replenished again, so that the movable plate 9 stretches out of the fixed box 8 for the next action process, and the fixed box 8 continuously enters the gas through the continuous replenishment of the fixed box 8 through the ventilation pipe 10, so that the gas enters the elastic bag 13, and the elastic bag 13 pushes the force of the fixed plate 14, thereby helping to move the pipe 6 to better fix the outer side of the pipe 3.
Referring to fig. 1 and 5, the ventilation pipe 10 is a unidirectional ventilation pipe, the inner side of the ventilation pipe 10 is a unidirectional ventilation pipe through the gas from the inner side of the fixed box 8 to the inner side of the elastic bag 13, the communication pipe 15 is a unidirectional ventilation pipe, the inner side of the communication pipe 15 is a unidirectional ventilation pipe through the gas from the inner side of the elastic bag 13 to the inner side of the square 16, the movement of the movable plate 9 is stabilized when the gas is in the inner side of the fixed box 8 through unidirectional ventilation of the ventilation pipe 10, the gas pushes the elastic bag 13 to expand and push the fixed plate 14 when the gas is in the inner side of the elastic bag 13, the movable die 6 fixes the pipe 3 more tightly, the gas pushes the blanking plate 17 to extend out of the square 16 when the gas is in the inner side of the square 16, the blanking plate 17 extends to push the pipe 3, the blanking process of the pipe 3 is performed, and finally the inner side gas is discharged through the blanking plate 17, so that the inner side gas entering the fixed box 8 has multiple functions, and the gas effect is improved.
Referring to fig. 1-4, the shape of the chute 12 is L-shaped, the fixed plate 14 slides on the top end of the fixed block 11 through the chute 12, the chute 12 formed on the top end of the fixed block 11 divides the fixed block 11 into two upper and lower rectangles, the upper and lower rectangles of the fixed block 11 are respectively closest to one corner of the jacking die 7 and coincide with each other, the chute 12 penetrates through the two sides of the fixed block 11, which are close to the fixed die 5 and the movable die 6, of the fixed block 11, so that the movement track of the fixed plate 14 on the top end of the fixed block 11 is the same as the shape of the chute 12, namely, the shape of the chute 12 is a transverse L-shape, one side of the chute 12 is close to the feeding assembly 2, the other side of the chute 12 is close to the fixed die 5, and the sliding process of the fixed plate 14 is facilitated through the shape of the chute 12.
Referring to fig. 2-4, five surfaces of the outer side of the elastic bag 13 are in contact with the inner side of the fixed block 11, one surface of the elastic bag 13, which is close to the fixed mold 5, is in contact with the side surface of the fixed plate 14 when the pipe 3 is bent, the elastic bag 13 is an elastic bag, the elastic bag 13 is elastically kept in a contracted state, the outer side of the elastic bag 13 is connected with a one-way pressure release valve, when the air is introduced into the inner side of the elastic bag 13 through the ventilation pipe 10, the pipe 3 is in a bending process, the fixed plate 14 positioned on the front side of the elastic bag 13 is pushed to move towards the fixed mold 5 after the elastic bag 13 is expanded, and then the fixed plate 14 drives the movable mold 6 to move towards the fixed mold 5, so that the strength of the movable mold 6 for fixing the pipe 3 is increased, the fixing of the pipe 3 is assisted, and meanwhile, the power for driving the movable mold 6 is reduced.
Referring to fig. 5, the inner side of the square 16 and the outer side of the blanking plate 17 are sealed, an arc groove matching with the outer side of the pipe 3 is formed on the side surface of the blanking plate 17 close to the pipe 3, the square 16 is connected with the side surface of the blanking plate 17 through a spring, the blanking plate 17 is elastically kept in a state of extending into the square 16, the outer side of the blanking plate 17 is connected with a one-way pressure release valve, when the pipe 3 is fixed, the pipe 3 is pushed by the pushing die 7 to push the blanking plate 17, so that the blanking plate 17 extrudes gas on the inner side of the square 16, and the gas on the inner side is discharged out of the inner side of the square 16 through the one-way pressure release valve.
Before the pipe 3 is bent, when the movable die 6 moves to fix the pipe 3 towards the fixed die 5, the movable die 6 drives the fixed plate 14 at the bottom end to slide in the chute 12 above the fixed block 11 in the direction between the fixed die 5 and the movable die 6, the movable die 6 drives the clamping block connected with the bottom end to squeeze and close the communicating pipe 15, in the subsequent movement of the pipe 3 in the bending process, the movable die 6 and the pipe 3 synchronously move in the axial direction of the pipe 3, so that the movable die 6 drives the fixed plate 14 to move in the passing direction, the fixed plate 14 moves to the only side surface of the elastic bag 13 which is not contacted with the fixed block 11, meanwhile, the pipe 3 moves to drive the movable plate 9 to stretch into the inner side of the fixed box 8, after the gas in the inner side of the fixed box 8 is compressed in the inner side of the fixed box 8, the gas flows to the inner side of the elastic bag 13 through the vent pipe 10, the elastic bag 13 is inflated, the elastic bag 13 is expanded to push the side surface of the close fixed plate 14, the fixed plate 14 is pushed to drive the movable die 6 to move towards the fixed die 5, the fixing strength of the movable die 6 to the pipe 3 is further improved, when the next position of the same pipe 3 is bent, the movable die 6 is separated from the fixed die 5 again by a certain distance, at the moment, the movable die 6 keeps a state of closing the communicating pipe 15 through the clamping block, the pipe 3 loses extrusion of the movable die 6, the pipe 3 is not closely close to the movable plate 9 any more, the movable plate 9 is stretched out of the inner side of the fixed box 8 again under the elastic force of the spring, the inner side of the fixed box 8 is enabled to suck air again through the one-way air valve, the next bending of the pipe 3 is performed, after one pipe 3 is completely bent, the pushing die 7 is completely separated from the outer side of the pipe bending die 4, the movable die 6 is completely separated from the side surface of the fixed die 5, the movable die 6 drives the fixed plate 14 to be far away from the top end of the fixed block 11, so that the pipe 3 is completely released, meanwhile, the movable die 6 opens the communicating pipe 15 through the clamping block, so that the gas on the inner side of the elastic bag 13 is elastically contracted and extruded to be blown to the inner side of the square 16 through the communicating pipe 15, the inner side of the square 16 pushes the blanking plate 17, the blanking plate 17 stretches out of the square 16 to push the side surface of the pipe 3 to be far away from the inner side arc-shaped groove of the pipe bending die 4, the blanking process of the pipe 3 is helped, and the blanking efficiency is improved.
Claims (8)
1. The utility model provides a bending machine for bending steel pipes, which is characterized in that the bending machine comprises a workbench (1), there is pay-off subassembly (2) on the top of workstation (1) through guide rail sliding connection, the middle part activity joint of pay-off subassembly (2) has tubular product (3), the tip that pay-off subassembly (2) was kept away from to workstation (1) is equipped with curved pipe die (4), be equipped with between curved pipe die (4) and pay-off subassembly (2) fixed mould (5), the opposite of fixed mould (5) is equipped with movable mould (6), the side that movable mould (6) kept away from pay-off subassembly (2) is equipped with tight mould (7) in top, fixed mould (5), movable mould (6) and tight mould (7) in top of workstation (1), and curved pipe die (4), curved pipe die (5), the contact surface between tight mould (6) and the tubular product (3) all has seted up the arc wall, the inside fixedly connected with fixed box (8) that is close to one side of curved pipe die (4) and fixed box (8), and fixed box (8) are kept away from the fixed box (8) and the fixed box (8) that stretch out from the fixed box (8) of movable box (8) and the fixed side (9) that the fixed box is connected with the fixed box (8) that is close to the inside of movable box (8), the outer side of the movable plate (9) is in sliding connection with the arc-shaped groove on the surface of the fixed mold (5), and the outer side of the movable plate (9) is in sealing connection with the fixed box (8).
2. The pipe bending machine for bending steel pipes according to claim 1, wherein one side of the fixed box (8) away from the feeding assembly (2) is fixedly connected with a vent pipe (10), the top end of the workbench (1) is connected with a fixed block (11) positioned below the side surface of the fixed block (5) close to the pipe (3), a sliding groove (12) is formed in the top end of the fixed block (11), the sliding groove (12) penetrates through the side surface of the fixed block (11) close to the fixed block (5) and the movable die (6), an elastic bag (13) is connected to the inner side of the upper part of the fixed block (11) back to the fixed block (5), a fixed plate (14) capable of sliding inside the sliding groove (12) is fixedly connected to the lower part of the movable die (6), a communicating pipe (15) is fixedly connected to the outer side of the elastic bag (13), one side of the bent pipe die (4) close to the pipe (3) is fixedly connected with a square block (16), the side surface of the square block (16) close to the pipe (3) is slidingly connected with a lower plate (17) between the square block (16) and the pipe (3), and one end of the elastic bag (16) is far away from the communicating pipe (13).
3. The pipe bending machine for bending steel pipes according to claim 1, wherein the shape of the fixed box (8) is circular arc, the shape and the size of the fixed box (8) are matched with those of an arc-shaped groove of the fixed mould (5) close to the movable mould (6), and the surface material of the fixed box (8) is smooth.
4. The pipe bending machine for bending steel pipes according to claim 1, wherein the movable plate (9) is made of rubber, the movable plate (9) is arc-shaped, and the side surface of the movable plate (9) close to the movable die (6) is closer to the movable die (6) than the side surface of the fixed box (8) close to the movable die (6).
5. The pipe bender for bending steel pipes according to claim 2, wherein the vent pipe (10) is a one-way vent pipe, the inside of the vent pipe (10) is through the gas from the inside of the fixed box (8) to the inside of the elastic bag (13), the communicating pipe (15) is a one-way vent pipe, and the inside of the communicating pipe (15) is through the gas from the inside of the elastic bag (13) to the inside of the square block (16).
6. The pipe bending machine for bending steel pipes according to claim 2, wherein the shape of the sliding groove (12) is L-shaped, the fixing plate (14) slides on the top end of the fixing block (11) through the sliding groove (12), the sliding groove (12) formed in the top end of the fixing block (11) divides the fixing block (11) into an upper rectangle and a lower rectangle, and one corner, closest to the jacking die (7), of each of the upper rectangle and the lower rectangle of the fixing block (11) coincides with one another.
7. The pipe bending machine for bending steel pipes according to claim 2, wherein the five surfaces on the outer side of the elastic bag (13) are in contact with the inner side of the fixed block (11), one surface of the elastic bag (13) close to the fixed mold (5) is in contact with the side surface of the fixed plate (14) when the pipe (3) is bent, the elastic bag (13) is an elastic bag, and the elastic bag (13) is elastically kept in a self-contracted state.
8. The pipe bending machine for bending steel pipes according to claim 2, wherein the space between the inner side of the square block (16) and the outer side of the blanking plate (17) is sealed, and an arc-shaped groove which is matched with the outer side of the pipe (3) is formed in the side surface of the blanking plate (17) close to the pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310493638.2A CN116618491A (en) | 2023-05-05 | 2023-05-05 | Pipe bending machine for bending steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310493638.2A CN116618491A (en) | 2023-05-05 | 2023-05-05 | Pipe bending machine for bending steel pipe |
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| CN116618491A true CN116618491A (en) | 2023-08-22 |
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| CN202310493638.2A Pending CN116618491A (en) | 2023-05-05 | 2023-05-05 | Pipe bending machine for bending steel pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117299893A (en) * | 2023-11-29 | 2023-12-29 | 成都飞机工业（集团）有限责任公司 | Pipe bending device convenient for feeding and discharging |
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- 2023-05-05 CN CN202310493638.2A patent/CN116618491A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117299893A (en) * | 2023-11-29 | 2023-12-29 | 成都飞机工业（集团）有限责任公司 | Pipe bending device convenient for feeding and discharging |
| CN117299893B (en) * | 2023-11-29 | 2024-03-15 | 成都飞机工业（集团）有限责任公司 | Pipe bending device convenient for feeding and discharging |
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