CN211637874U - Two-way two R take bending machine of mound - Google Patents

Abstract

The utility model discloses a two-way double-R pipe bending machine with a top pier, which comprises a supporting base and a pipe bending machine tool which is arranged above the supporting base and is connected with the supporting base in a sliding way, wherein one side of the pipe bending machine tool is provided with a machine tool transverse moving device for driving the pipe bending machine tool to slide on the supporting base, the pipe bending machine tool comprises a pipe bending device, and the pipe bending device is sequentially arranged into a top pier clamping device, a pipe carrier roller device, a crease-resistant plate device and a two-way double-R pipe bending die device along the conveying direction of a pipe; the top pier clamping device is used for providing axial top pier force to prevent the outer wall of the elbow from being thinned when the pipe is bent, and comprises a rotary clamping mechanism and an axial top pier mechanism; the pipe roller device is used for supporting the pipe. The utility model discloses a set up the problem of return bend in-process elbow outer wall attenuate of swan neck system to and can take place the problem that the elbow inboard corrugates easily when controlling the little R return bend of two-way thin wall.

Description

Two-way two R take bending machine of mound

Technical Field

The utility model relates to a bending machine technical field specifically is a two-way two R takes bending machine of mound.

Background

The serpentine pipe bender is mainly used in the industries of boilers, metallurgy, chemical engineering and the like, is provided with fixed-length pipe conveying equipment, can realize multi-head continuous bending of convectively heated surface pipes such as a coal economizer, a superheater, a reheater and the like, and comprises a numerical control small R heading bidirectional double R pipe bender, a roll bending bidirectional double R pipe bender and other various specifications and models. However, the existing pipe bender often has the problem that the outer wall of the elbow is thinned when the elbow is bent, the problem that the inner side of the elbow is easily wrinkled when the left-right bidirectional thin-wall small R elbow is bent, and the problem that the existing double-sided double-R tower type pipe bending die does not have the clamping function.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-way two R takes bending machine of mound, has solved the problem of return bend in-process elbow outer wall attenuate through setting up swan neck system to and can take place the problem that the elbow inboard crinkles easily when carrying out the little R return bend of two-way thin wall about.

In order to achieve the above object, the utility model provides a following technical scheme: a bidirectional double-R pipe bending machine with a top pier comprises a supporting base and a pipe bending machine tool which is arranged above the supporting base and is connected with the supporting base in a sliding mode, wherein a machine tool transverse moving device used for driving the pipe bending machine tool to slide on the supporting base is arranged on one side of the pipe bending machine tool, the pipe bending machine tool comprises a pipe bending device, and the pipe bending device is sequentially provided with a top pier clamping device, a pipe carrier roller device, a crease-resistant plate device and a bidirectional double-R pipe bending die device along the conveying direction of a pipe;

the top pier clamping device is used for providing axial top pier force when the pipe is bent so as to prevent the outer wall of the elbow from being thinned;

the pipe carrier roller device is used for supporting a pipe;

the anti-wrinkling plate device is used for providing a supporting force to prevent the inner wall of the pipe from wrinkling when the pipe is bent and comprises an axial pushing mechanism and a transverse moving mechanism;

the bidirectional double-R pipe bending die device is used for bending pipes with two different bending radiuses and comprises a first pipe bending die and a second pipe bending die;

the pipe bending machine tool comprises a machine tool support, wherein a hinged seat and an inclined lifting device which are used for inclining and lifting the pipe bending device are fixedly mounted on two sides of the machine tool support adjacent to the machine tool transverse moving device respectively.

The inclined lifting device comprises a lifting oil cylinder, the lifting oil cylinder is fixedly connected with the machine tool support through a fixed connecting piece, and the free end of the lifting oil cylinder is fixedly connected with the pipe bending device.

Preferably, fixed mounting has the baffle support on the articulated seat, swan neck system fixed mounting is on the baffle support, be equipped with in the baffle support and be used for driving the hinge means that two-way two R swan neck die assembly carries out the return bend.

Preferably, the hinge device comprises a hinge disc, a hinge wound on the hinge disc, and a first driving oil cylinder and a second driving oil cylinder fixed at two ends of the hinge.

Preferably, two-way two R bending die device still includes the runing rest dish of fixed mounting in second bending die below, runing rest dish and hinge plate fixed connection, fixed connection between first bending die and the second bending die for drive first bending die and the rotation of second bending die through the hinge and carry out the return bend.

Preferably, the first pipe bending die comprises a first upper die and a first lower die which are connected with the first clamping block in a matched and clamped mode through a first clamping groove, and the second pipe bending die comprises a second upper die and a second lower die which are connected with the second clamping block in a matched and clamped mode through a second clamping groove;

the inner parts of the first bending die and the second bending die are respectively provided with a through core hole, a core rod driven by a first telescopic oil cylinder is arranged in each core hole, and the core rods are used for separating a first upper die of the first bending die from a first lower die and separating a second upper die of the second bending die from a second lower die.

Preferably, the anti-crease plate device further comprises an anti-crease mechanism arranged on the axial pushing mechanism, the transverse moving mechanism is used for driving the axial driving mechanism and the anti-crease mechanism to move transversely, the axial pushing mechanism is used for driving the anti-crease mechanism to be close to or far away from the first pipe bending die, the anti-crease mechanism comprises an anti-crease plate and an anti-crease plate lifting mechanism, and the anti-crease plate comprises a left anti-crease plate and a right anti-crease plate; the anti-crease plate comprises an arc-shaped supporting part matched with the pipe.

Preferably, axial advancing mechanism includes first hydro-cylinder advancing mechanism and second hydro-cylinder advancing mechanism, first hydro-cylinder advancing mechanism is used for driving the left to crease-resistant board and is close to or keeps away from first bending die, second hydro-cylinder advancing mechanism is used for driving the right to crease-resistant board and is close to or keeps away from first bending die, lifting mechanism includes first lifting hydro-cylinder and second lifting hydro-cylinder, first lifting hydro-cylinder is used for driving the left to crease-resistant board to rise and descend, second lifting hydro-cylinder is used for driving the right to crease-resistant board to rise and descend, axial advancing mechanism fixed mounting is on first movable plate.

Preferably, the transverse moving mechanism comprises a first transverse moving support plate fixed on the baffle bracket, a first transverse moving oil cylinder is arranged on one side of the first transverse moving support plate, the first transverse moving support plate is connected with the first moving plate in a sliding mode through a first sliding groove, and the free end of the first transverse moving oil cylinder is fixedly connected with the first moving plate.

Preferably, the top pier clamping device comprises a rotary clamping mechanism and an axial top pier mechanism, the axial top pier mechanism comprises an axial moving frame and a first moving oil cylinder, and the first moving oil cylinder is used for driving the rotary clamping mechanism to axially slide on the axial moving frame; the rotary clamping mechanism comprises a first driving oil cylinder, the free end of the first driving oil cylinder is connected with a pushing chuck in an articulated mode through a first articulated piece, the pushing chuck is connected with a fixed baffle arranged outside the rotary clamping mechanism in an articulated mode through a pin shaft, a first half arc-shaped clamping groove is formed in the pushing chuck, an installation block is arranged on the fixed baffle, and a second half arc-shaped clamping groove matched with the first half arc-shaped clamping groove is formed in the installation block.

Preferably, the tube idler device comprises a first idler arrangement and a first idler support disposed below the first idler; the machine tool transverse moving device comprises a second transverse moving oil cylinder, and the free end of the second transverse moving oil cylinder is fixedly connected with the machine tool support.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a bending machine is provided with a mound clamping device, and a mound clamping device includes convolution formula clamping mechanism and axial top mound mechanism to this problem of return bend in-process elbow outer wall attenuate has been solved.

2. The pipe bending machine of the utility model is provided with a double-sided double R tower type pipe bending die which is used for bending two pipes with different bending radiuses, comprising a first pipe bending die and a second pipe bending die; moreover, the clamping function can be realized by arranging the first left-bending clamping hole, the first right-bending clamping hole, the second left-bending clamping hole and the second right-bending clamping hole, the bent pipe can be clamped, and the double-sided double-R bent pipe is realized.

3. The utility model discloses a pipe bender is provided with a crease-resistant plate device which is used for providing supporting force to prevent the inner wall of a pipe from wrinkling when the pipe is bent, and comprises an axial propelling mechanism and a transverse moving mechanism; therefore, the problems that when the left and right bidirectional thin-wall small R bent pipes are bent, the inner sides of the elbows are easy to wrinkle, and the quality of the elbows cannot be guaranteed are solved.

4. The utility model discloses a bending machine is provided with slope elevating gear, and lift cylinder's free end and swan neck system fixed connection for go up and down with swan neck system, this slope elevating gear simple structure, it is steady to go up and down, has removed expensive accurate lathe linear guide from, has overcome because the unbalanced problem of lift that the lathe weight on the left side can cause.

Drawings

Fig. 1 is a schematic structural view of a bidirectional double-R pipe bender with a top pier of the present invention;

FIG. 2 is a front view of the two-way double R pipe bender with a top pier of the present invention;

fig. 3 is a schematic structural view of a pipe bending device in a bidirectional double-R pipe bending machine with a top pier of the present invention;

FIG. 4 is an enlarged schematic view of the portion A of FIG. 3 of the two-way double R pipe bender with a top pier of the present invention;

fig. 5 is a schematic structural view of a rotary clamping mechanism in a bidirectional double-R pipe bender with a top pier of the present invention;

fig. 6 is a schematic structural view of a mounting frame of a clamping mechanism in a bidirectional double-R pipe bender with a top pier according to the present invention;

FIG. 7 is an enlarged schematic view of the portion B of FIG. 3 of the two-way double R pipe bender with a top pier of the present invention;

fig. 8 is a schematic structural view of a plate-preventing device in a bidirectional double-R pipe bender with a top pier according to the present invention;

fig. 9 is a schematic structural view of a bidirectional double-R bending die device in the bidirectional double-R pipe bender with a top pier of the present invention;

fig. 10 is a schematic structural view of the connection between the two-way double-R bending die device and the anti-creasing plate device in the two-way double-R pipe bender with the top pier of the present invention;

fig. 11 is a schematic structural view of the connection between the first bending die and the second bending die in the bidirectional double-R pipe bender with a top pier according to the present invention;

fig. 12 is a schematic sectional view of a first bending die and a second bending die of the bi-directional dual-R pipe bender with a top pier according to the present invention;

fig. 13 is a schematic structural view of a hinge device in a two-way double-R pipe bender with a top pier.

In the figure: 1. a support base; 2. a pipe bending machine tool; 21. a machine tool support; 22. a hinged seat; 23. an incline lift device; 2301. a lift cylinder; 2302. fixing the connecting piece; 2303. a transverse baffle; 24. A baffle bracket; 25. a hinge device; 2501. a hinge plate; 2502. a hinge; 2503. a first drive cylinder; 2504. a second driving oil cylinder; 2505. a rotation support plate; 2301. a lift cylinder; 2302. fixing the connecting piece; 3. a machine tool traversing device; 301. a second traversing cylinder; 4. a top pier clamping device; 41. a rotary clamping mechanism; 4101. a first drive cylinder; 4102. a first hinge member; 4103. Pushing the chuck; 4104. fixing a baffle plate; 4105. mounting blocks; 4106. a first semi-arc-shaped clamping groove; 4107. a second semi-arc-shaped clamping groove; 42. an axial heading mechanism; 4201. an axial moving frame; 4202 a first moving cylinder; 4203. a clamping mechanism mounting bracket; 5. a pipe carrier roller device; 501. a first carrier roller; 502. a first idler cradle; 6. a crease-resist device; 601. a left-hand crease-resistant plate; 602. a right-direction crease-resistant plate; 603. an arc-shaped support part; 61. an axial propulsion mechanism; 6101. a first cylinder propulsion mechanism; 6102. A second cylinder propulsion mechanism; 6103. a first lift cylinder; 6104. a second lift cylinder; 62. A lateral movement mechanism; 6201. a first traverse support plate; 6202. a first traversing cylinder; 6203. a first moving plate; 7. a bidirectional double-R pipe bending die device; 71. a first bending die; 7101. a first upper die; 7102. A first lower die; 7103. a first left-hand bend clamping hole; 7104. a first arcuate bend region; 7105. a first card slot; 7106. a first clamping block; 7107. a first right-hand bend clamping hole; 72. a second bending die; 7201. A second upper die; 7202. a second lower die; 7203. a second left-hand bend clamping hole; 7204. a second right-hand bend clamping hole; 7204. a second arc-shaped bent pipe area; 7205. a second card slot; 7206. a second fixture block; 7207. A second right-hand bend clamping hole; 73. a core bar; 74. and (4) core holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides an embodiment: the utility model provides a two-way two R take bending machine of top mound, including supporting base 1 and setting and supporting base 1 top and with support the pipe bending machine 2 that base 1 slides and links to each other, one side of pipe bending machine 2 is equipped with and is used for driving pipe bending machine 2 gliding lathe sideslip device 3 on supporting base 1, pipe bending machine 2 includes swan neck system, swan neck system sets gradually to top mound clamping device 4, pipe bearing roller device 5, crease-resistant board device 6 and two-way two R pipe bending die dress along pipe direction of transfer

Specifically, in order to reduce the thinning of the outer wall of the elbow and improve the forming of the elbow, an axial heading force is required to be applied to the pipe when the pipe is bent, so that a heading clamping device 4 is provided, wherein the heading clamping device 4 is used for providing the axial heading force to prevent the thinning of the outer wall of the elbow when the pipe is bent, and comprises a rotary clamping mechanism 41 and an axial heading mechanism 42;

specifically, the tube carrier roller device 5 is used for supporting a tube, and comprises a first carrier roller 501;

specifically, when a left-right bidirectional thin-wall small R-shaped pipe bending is carried out, the inner side of the elbow is easy to wrinkle, the quality of the elbow cannot be guaranteed, and therefore a crease-resistant plate device 6 is arranged, the crease-resistant plate device 6 is used for providing supporting force to prevent the inner wall of the pipe from wrinkling when the pipe is bent, and comprises an axial pushing mechanism 61 and a transverse moving mechanism 62;

specifically, the bidirectional double-R pipe bending die device 7 is used for bending pipes with two different bending radii, and includes a first pipe bending die 71 and a second pipe bending die 72;

specifically, the machine tool needs to be lifted and moved transversely to complete left and right surface bending by the bidirectional double-R pipe bending machine. And lifting the steel pipe to a working position. After falling, the whole machine tool is lower than the lower surface of the pipe, and the transverse movement is completed. The general machine tool is heavy in weight and heavy in front and back, and stable lifting of the machine tool needs to be achieved. The pipe bending machine 2 comprises a machine tool support 21, wherein two sides, adjacent to the machine tool transverse moving device 3, of the machine tool support 21 are respectively and fixedly provided with a hinged seat 22 and an inclined lifting device 23, and the hinged seat and the inclined lifting device are used for inclining and lifting the pipe bending device.

Specifically, the tilt lifting device 23 includes a lifting cylinder 2301, the lifting cylinder 2301 is fixedly connected with the machine tool bracket 21 through a fixed connecting piece 2302, and a free end of the lifting cylinder 2301 is fixedly connected with the pipe bending device.

Wherein, the fixed bolster links to each other with lathe support 21 welding, and the free end of lift cylinder 2301 links to each other with baffle support 24 welding.

The utility model provides a pair of embodiment, fixed mounting has baffle support 24 on articulated seat 22, swan neck system fixed mounting is on baffle support 24, be equipped with in the baffle support 24 and be used for driving the hinge means 25 that two-way two R pipe bending die device 7 carries out the return bend.

As shown in fig. 13, the structure of the hinge device 25 in the bending machine according to the present invention is schematically illustrated, and the hinge device 25 includes a hinge plate 2501, a hinge 2502 wound on the hinge plate 2501, and a first driving cylinder 4101 and a second driving cylinder 2504 fixed at two ends of the hinge 2502 according to an embodiment of the present invention. The first driving cylinder 4101 and the second driving cylinder 2504 alternately extend and contract to drive the hinge 2502 to drive the hinge plate 2501 to rotate forwards and backwards.

As shown in fig. 9, which is the structural schematic diagram of the two-way double-R bending die device 7 in the pipe bending machine of the present invention, the present invention provides an embodiment, the two-way double-R bending die device 7 further includes a rotation support plate 2505 fixedly installed below the second bending die 72, the rotation support plate 2505 is fixedly connected to the hinge plate 2501, and thus the hinge plate 2501 can drive the rotation support plate 2505 to rotate forward and backward. In addition, the first pipe bending die 71 and the second pipe bending die 72 are fixedly connected, so that the first driving oil cylinder 4101 and the second driving oil cylinder 2504 alternately extend and contract to drive the hinge 2502 to drive the hinge plate 2501 to rotate forward and backward, further drive the rotation support plate 2505 to rotate forward and backward, and further drive the first pipe bending die 71 and the second pipe bending die 72 to rotate forward and backward to bend left and right pipes.

As shown in fig. 12, which is a schematic cross-sectional structure diagram of the first bending die 71 and the first bending die 71 in the pipe bending machine of the present invention, the present invention provides an embodiment in which the first bending die 71 includes a first upper die 7101 and a first lower die 7102 connected to a first clamping groove 7105 and a first clamping block 7106 in a matching manner, and the second bending die 72 includes a second upper die 7201 and a second lower die 7202 connected to a second clamping groove 7205 and a second clamping block 7206 in a matching manner; the first bending die 71 and the second bending die 72 are internally provided with core holes 74 which penetrate through the first bending die 71 and the second bending die 72, core rods 73 which are driven by first telescopic oil cylinders are arranged in the core holes 74, and the core rods 73 are used for separating a first upper die 7101 of the first bending die 71 from a first lower die 7102 and separating a second upper die 7201 of the second bending die 72 from a second lower die 7202. Specifically, the core rod 73 is provided as a stepped core rod 73,

the core bar 73 with steps passes through the core hole 74 to drive the first upper die 7101 of the first pipe bending die 71 to be separated from the second upper die 7201 of the first lower die 7102 and the second pipe bending die 72 and the second lower die 7202 under the driving of the cylinder, when the metal pipe passes through the first arc-shaped pipe bending area 7104 and the second arc-shaped pipe bending area 7204 (die cavity) of the pipe bending die and passes through the corresponding clamping holes, the core bar 73 descends, the first upper die 7101 of the first pipe bending die 71 is folded with the second upper die 7201 of the first lower die 7102 and the second pipe bending die 72 and the second lower die 7202, the first clamping groove 7105 is matched with the first clamping block 7106, and the second clamping groove 7205 is matched with the second clamping block 7206, so that the first pipe bending die 71 and the second pipe bending die 72 are accurately positioned, and can bear lateral pressure during pipe bending.

When left-right two-way thin-wall small R pipe bending is performed, the inner side of the bend is easy to wrinkle, so that a crease-resistant plate device 6 is arranged, in the embodiment, as shown in FIG. 8, the structure schematic diagram of the crease-resistant plate device 6 in the pipe bending machine is shown, the utility model provides an embodiment, the crease-resistant plate device 6 further comprises a crease-resistant mechanism arranged on the axial advancing mechanism 61, the transverse moving mechanism 62 is used for driving the axial driving mechanism and the crease-resistant mechanism to move transversely, the axial advancing mechanism 61 is used for driving the crease-resistant mechanism to be close to or far away from the first pipe bending die 71, the crease-resistant mechanism comprises a crease-resistant plate and a crease-resistant plate lifting mechanism, and the crease-resistant plate comprises a left crease-directional crease-; the blank comprises an arc-shaped support 603 matching the tube.

Specifically, as shown in fig. 10, the axial pushing mechanism 61 includes a first oil cylinder pushing mechanism 6101 and a second oil cylinder pushing mechanism 6102, the first oil cylinder pushing mechanism 6101 is used to drive the left-direction anti-creasing plate 601 to be close to or away from the first bending die 71, the second oil cylinder pushing mechanism 6102 is used to drive the right-direction anti-creasing plate 602 to be close to or away from the first bending die 71, the lifting mechanism includes a first lifting oil cylinder and a second lifting oil cylinder, the first lifting oil cylinder is used to drive the left-direction anti-creasing plate 601 to ascend and descend, the second lifting oil cylinder is used to drive the right-direction anti-creasing plate 602 to ascend and descend, and the axial pushing mechanism 61 is fixedly mounted on the first moving plate 6203.

As shown in fig. 7, the present invention provides an embodiment, the lateral moving mechanism 62 includes a first traversing supporting plate 6201 fixed on the baffle bracket 24, one side of the first traversing supporting plate 6201 is provided with a first traversing cylinder 6202, the first traversing supporting plate 6201 and the first moving plate 6203 are connected by a first sliding groove, and the free end of the first traversing cylinder 6202 is fixedly connected to the first moving plate 6203. Therefore, the front and back transverse movement operation of the anti-crease plate device 6 is completed, and the requirements of thin-wall small R bent pipe left and right bidirectional bent pipe are met.

As shown in fig. 4, in an embodiment of the present invention, the axial pier mechanism 42 includes an axial moving frame 4201 and a first moving cylinder 4202, the first moving cylinder 4202 is configured to drive the rotary clamping mechanism 41 to slide axially on the axial moving frame 4201; the rotary clamping mechanism 41 comprises a first driving oil cylinder 4101, the free end of the first driving oil cylinder 4101 is hinged with a pushing chuck 4103 through a first hinge part 4102, the pushing chuck 4103 is hinged with a fixed baffle 4104 arranged at the outer side of the rotary clamping mechanism 41 through a pin shaft, a first semi-arc clamping groove 4106 is arranged on the pushing chuck 4103, an installation block 4105 is arranged on the fixed baffle 4104, and a second semi-arc clamping groove 4107 matched with the first semi-arc clamping groove 4106 is arranged on the installation block 4105. By arranging the first semi-arc clamping groove 4106 and the second semi-arc clamping groove 4107, when the pipe is bent, the pipe and the arc clamping groove can be clamped together, and when the pipe is bent, the first moving oil cylinder 4202 pushes the arc clamping groove forwards to form an axial pressure in the section of the pipe of the axial upsetting mechanism 42, so that the effect of improving the forming is achieved; after the pipe bending is finished, the plug rod of the first driving oil cylinder 4101 retracts to push the chuck 4103 to rotate downwards around the fixed shaft and return to the original position, all components are lower than the lower surface of the pipe, the axial position of the clamp can be adjusted by the whole device according to the radius of the pipe bending, and the whole device is simple in structure and high in clamping force.

As shown in fig. 1, which is a schematic structural view of a bidirectional dual R pipe bender with a top pier according to the present invention, in an embodiment of the present invention, the pipe carrier roller device 5 further includes a first carrier roller bracket 502 disposed below the first carrier roller 501; for providing a supporting force to the tube during the tube bending process.

The machine tool transverse moving device 3 comprises a second transverse moving oil cylinder 301, and the free end of the second transverse moving oil cylinder 301 is fixedly connected with the machine tool support 21, so that the transverse moving operation of the machine tool support 21 is realized.

As shown in fig. 11, for the structure schematic diagram of the first bending die 71 and the first bending die 71 in the pipe bending machine of the present invention, in this embodiment, the clamping function can be realized by providing the first left-bending clamping hole 7103, the first right-bending clamping hole 7107, the second left-bending clamping hole 7203 and the second right-bending clamping hole 72077204, and the pipe bent by the bending can be clamped, so as to realize the double-sided double-R bending.

The working principle is as follows: when the machine tool is to work, the piston rod of the lifting cylinder 2301 is in a retraction position, the whole baffle bracket 24 is in an inclined state with a lower left part and a higher right part, the highest point of the working positions of all components (including the pipe bending device) on the baffle bracket 24 is lower than the lower surface of the pipe, and the machine tool can smoothly complete transverse movement through the machine tool transverse moving device 3. When the machine tool needs to enter a working state, the piston rod of the lifting cylinder 2301 extends out to push the machine tool body to rotate around the hinge seat 22, the machine tool is changed from an inclined state to a horizontal state, and at the moment, the pipe bending devices are equal in height to pipes to be bent, and the pipe bending conditions are met. In order to prevent the machine tool from shaking in the transverse moving process, two transverse baffles 2303 are arranged at one end of the machine tool, which is provided with a lifting cylinder 2301, and are used for offsetting the left and right shaking of the machine tool in the transverse moving process.

Before bending, the pipe is first placed in the second half arc-shaped slot 4107 of the mounting block 4105, then the first driving cylinder 4101 drives the pushing collet 4103 to rotate upward around the fixed shaft, so that the pipe is clamped between the second half arc-shaped slot 4107 and the first half arc-shaped slot 4106, thereby clamping the pipe and the arc-shaped slot together when the pipe is bent, and then the first moving cylinder 4202 drives the rotary clamping mechanism 41 to slide axially on the axial moving frame 4201, so that an axial pressure is formed in the section of the pipe of the axial upsetting mechanism 42, thereby improving the forming effect.

When the bidirectional double-R pipe bending die device 7 is ready to work, the core rod 73 with steps is driven by the first telescopic oil cylinder to separate the first upper die 7101 of the first pipe bending die 71 from the first lower die 7102 and separate the second upper die 7201 from the second lower die 7202 of the second pipe bending die 72. Then when the metal pipe passes through a first arc-shaped pipe bending area 7104 and a second arc-shaped pipe bending area 7204 (die cavities) of the pipe bending die and passes through corresponding clamping holes, the core rod 73 descends, a first upper die 7101 of the first pipe bending die 71 is folded with a first lower die 7102 and a second upper die 7201 of the second pipe bending die 72 is folded with a second lower die 7202, a first clamping groove 7105 is matched with a first clamping block 7106, and a second clamping groove 7205 is matched with a second clamping block 7206, so that the first pipe bending die 71 and the second pipe bending die 72 are accurately positioned and can bear lateral pressure during pipe bending. The bidirectional double-R pipe bending die device 7 can simultaneously complete double-sided double-R pipe bending to form a snakelike pipe row with large and small bending radiuses.

When the two-way anti-wrinkling plate device 6 works, the first oil cylinder pushing mechanism 6101 or the second oil cylinder pushing mechanism 6102 is in an extending state, the arc-shaped supporting part 603 is matched with a pipe to be bent, the pipe bending is started, and the anti-wrinkling plate is arranged on the inner side of the elbow of the pipe to provide a supporting force for the pipe, so that the wrinkling of the inner wall of the pipe is effectively prevented.

After the pipe bending is finished, the first cylinder pushing mechanism 6101 or the second cylinder pushing mechanism 6102 is in an extending state, two anti-creasing plates fall below and are lower than the lower surface of the pipe, the core bar 73 repeats the action of separating the first upper die 7101 and the first lower die 7102 of the first pipe bending die 71 and the second upper die 7201 and the second lower die 7202 of the second pipe bending die 72, the metal pipe is removed from the die, the piston rod of the first driving cylinder 4101 retracts, the chuck 4103 is pushed to rotate downwards around the fixed shaft and returns to the original position, and at this time, all the components are lower than the lower surface of the pipe.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (10)

1. The utility model provides a two-way two R takes bending machine of mound, including supporting base (1) and setting and supporting base (1) top and with support base (1) pipe bending machine bed (2) that slide and link to each other, its characterized in that: a machine tool transverse moving device (3) for driving the pipe bending machine tool (2) to slide on the supporting base (1) is arranged on one side of the pipe bending machine tool (2), the pipe bending machine tool (2) comprises a pipe bending device, and the pipe bending device is sequentially provided with a top pier clamping device (4), a pipe carrier roller device (5), a crease-resistant plate device (6) and a bidirectional double-R pipe bending die device (7) along the conveying direction of a pipe;

the abutment clamping device (4) is used for providing axial abutment force when the pipe is bent so as to prevent the outer wall of the elbow from being thinned;

the pipe carrier roller device (5) is used for supporting a pipe;

the anti-creasing plate device (6) is used for providing supporting force to prevent the inner wall of the pipe from creasing when the pipe is bent, and comprises an axial pushing mechanism (61) and a transverse moving mechanism (62);

the bidirectional double-R pipe bending die device (7) is used for bending pipes with two different bending radiuses and comprises a first pipe bending die (71) and a second pipe bending die (72);

the pipe bending machine tool (2) comprises a machine tool support (21), and two sides, adjacent to the machine tool transverse moving device (3), of the machine tool support (21) are respectively and fixedly provided with a hinge seat (22) and an inclined lifting device (23) which are used for obliquely lifting the pipe bending device;

the inclined lifting device (23) comprises a lifting oil cylinder (2301), the lifting oil cylinder (2301) is fixedly connected with the machine tool support (21) through a fixed connecting piece (2302), and the free end of the lifting oil cylinder (2301) is fixedly connected with the pipe bending device.

2. The machine of claim 1, wherein the two-way double-R pipe bender with a top pier is characterized in that: fixed mounting has baffle support (24) on articulated seat (22), swan neck system fixed mounting is on baffle support (24), be equipped with hinge means (25) that are used for driving two-way two R swan neck die set (7) and carry out the return bend in baffle support (24).

3. The machine of claim 2, wherein: the hinge device (25) includes a hinge plate (2501), a hinge (2502) wound around the hinge plate (2501), and a first driving cylinder (4101) and a second driving cylinder (2504) fixed to both ends of the hinge (2502).

4. The machine of claim 3, wherein: two-way two R bending die device (7) still include rotation support disk (2505) of fixed mounting in second bending die (72) below, rotation support disk (2505) and hinge dish (2501) fixed connection, fixed connection between first bending die (71) and second bending die (72) for drive first bending die (71) and second bending die (72) rotation through hinge (2502) and carry out the return bend.

5. The machine of claim 4, wherein: the first bending die (71) comprises a first upper die (7101) and a first lower die (7102) which are connected with a first clamping block (7106) in a matched clamping mode through a first clamping groove (7105), and the second bending die (72) comprises a second upper die (7201) and a second lower die (7202) which are connected with a second clamping block (7206) in a matched clamping mode through a second clamping groove (7205);

the inner parts of the first bending die (71) and the second bending die (72) are provided with penetrating core holes (74), core rods (73) driven by first telescopic oil cylinders are arranged in the core holes (74), and the core rods (73) are used for separating a first upper die (7101) of the first bending die (71) from a second upper die (7201) and a second lower die (7202) of the first lower die (7102) and the second bending die (72).

6. The machine of claim 1, wherein the two-way double-R pipe bender with a top pier is characterized in that: the crease-resistant plate device (6) further comprises a crease-resistant mechanism arranged on the axial pushing mechanism (61), the transverse moving mechanism (62) is used for driving the axial driving mechanism and the crease-resistant mechanism to move transversely, the axial pushing mechanism (61) is used for driving the crease-resistant mechanism to be close to or far away from a first bending die (71), the crease-resistant mechanism comprises a crease-resistant plate and a crease-resistant plate lifting mechanism, and the crease-resistant plate comprises a left crease-resistant plate (601) and a right crease-resistant plate (602); the anti-creasing plate comprises an arc-shaped supporting part (603) matched with the pipe.

7. The machine of claim 6, wherein: axial advancing mechanism (61) includes first hydro-cylinder advancing mechanism (6101) and second hydro-cylinder advancing mechanism (6102), first hydro-cylinder advancing mechanism (6101) is used for driving the left anti-crease plate (601) to be close to or keep away from first pipe bending die (71), second hydro-cylinder advancing mechanism (6102) is used for driving the right anti-crease plate (602) to be close to or keep away from first pipe bending die (71), lifting mechanism includes first lifting hydro-cylinder and second lifting hydro-cylinder, first lifting hydro-cylinder is used for driving the left anti-crease plate (601) to rise and descend, the second lifting hydro-cylinder is used for driving the right anti-crease plate (602) to rise and descend, axial advancing mechanism (61) fixed mounting is on first movable plate (6203).

8. The machine of claim 1, wherein the two-way double-R pipe bender with a top pier is characterized in that: the transverse moving mechanism (62) comprises a first transverse moving support plate (6201) fixed on the baffle bracket (24), a first transverse moving oil cylinder (6202) is arranged on one side of the first transverse moving support plate (6201), the first transverse moving support plate (6201) is in sliding connection with the first moving plate (6203) through a first sliding groove, and the free end of the first transverse moving oil cylinder (6202) is fixedly connected with the first moving plate (6203).

9. The machine of claim 1, wherein the two-way double-R pipe bender with a top pier is characterized in that: the heading clamping device (4) comprises a rotary clamping mechanism (41) and an axial heading mechanism (42), wherein the axial heading mechanism (42) comprises an axial moving frame (4201) and a first moving cylinder (4202), and the first moving cylinder (4202) is used for driving the rotary clamping mechanism (41) to slide on the axial moving frame (4201) along the axial direction; the rotary clamping mechanism (41) is arranged on a clamping mechanism mounting frame (4203) and comprises a first driving oil cylinder (4101), the free end of the first driving oil cylinder (4101) is hinged with a pushing chuck (4103) through a first hinge (4102), the pushing chuck (4103) is hinged with a fixing baffle (4104) arranged on the outer side of the rotary clamping mechanism (41) through a pin shaft, a first half arc clamping groove (4106) is arranged on the pushing chuck (4103), an installation block (4105) is arranged on the fixing baffle (4104), and a second half arc clamping groove (4107) matched with the first half arc clamping groove (4106) is arranged on the installation block (4105).

10. The bending machine of claim 1 or 9, wherein the bending machine comprises: the pipe carrier roller device (5) comprises a first carrier roller (501) and a first carrier roller bracket (502) arranged below the first carrier roller (501); the machine tool transverse moving device (3) comprises a second transverse moving oil cylinder (301), and the free end of the second transverse moving oil cylinder (301) is fixedly connected with the machine tool support (21).

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