CN105903792B

CN105903792B - Composite-curve machine

Info

Publication number: CN105903792B
Application number: CN201610509064.3A
Authority: CN
Inventors: 杨雷刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-06-29
Filing date: 2016-06-29
Publication date: 2017-08-29
Anticipated expiration: 2036-06-29
Also published as: CN105903792A

Abstract

The invention discloses a kind of composite-curve machine, including frame and electric control box, it is respectively equipped with frame：Robot device, for electrothermal tube to be transferred into the progress pipe end bending process of broken pipe station and the electrothermal tube after bending process is transferred into bend pipe station；Broken pipe device, is mainly made up of two broken pipe heads, and broken pipe head can carry out pipe end bending process to electrothermal tube；Swan neck system, using curved mould by the electrothermal tube rotational forming after bending process, is made predetermined shape.The composite-curve machine, pipe end bending and the main body processing and forming of electrothermal tube can be completed simultaneously in same equipment, save the production time, improve production efficiency, and the composite-curve machine shifts electrothermal tube using robot device, automaticity is high, is guarded substantially without professional, it can save artificial, thus reduce production cost.And make use of curved nib to position electrothermal tube, it is ensured that and the uniformity of processed finished products, substantially increase the yields of finished product.

Description

Composite-curve machine

Technical field

The present invention relates to electrothermal tube machine-shaping device, more particularly to a kind of composite-curve machine.

Background technology

It is electricity in ubiquitous, the electrothermal tube such as inside soy bean milk making machine, electric cooker that electrothermal tube can be said in our life Electrothermal tube inside heat pipe, water heater etc..

Electrothermal tube bends to different forms in order to adapt to the interior shape of different heating device housing, often.With tubing plus The development of industrial and commercial bank's industry, electric heating tube shape is increasingly sophisticated, and the degree of crook and bend pipe shape need to electrothermal tube are more and more diversified, Corresponding angle pipe equipment is also required to constantly update transformation.

The device of bending electrothermal tube is divided into manual and semi-automatic two kinds in the prior art, and hand electric heat pipe apparatus for bending makes It is generally and electrothermal tube is placed in apparatus for bending with mode manually, using is fixed on by way of being hinged on bending platform and can be Electrothermal tube is pressed in the fixed block coordinated with hand bending tool on bending platform by the hand bending tool rotated on bending platform, The pin joint using hand bending tool and bending platform bends to electrothermal tube certain as fulcrum hand bending tool afterwards Shape.

The operation principle of semi-automatic electrothermal tube apparatus for bending is：It will be placed on using the bending plate or folded block that are controlled by cylinder Electrothermal tube on correspondence position is bent, instead of artificial operation.

The procedure of processing of electrothermal tube in electric cooker is as shown in figure 1, straight type electrothermal tube L1 is first through pipe end bending process system Annular electric heating tube L3 is made into the electrothermal tube L2 after bending process, then by curved mold forming.Electricity in existing processing electric cooker The equipment of heat pipe is only capable of carrying out first order buckling step, it is impossible to electrothermal tube is molded completely, still needs to a kind of lower bending machine to electrothermal tube Bent again, thus waste the production time, reduced and personnel's progress is still needed to beside production efficiency, and each bender Guard and placement, electrothermal tube of taking, waste human resources.

And because the electrothermal tube in electric cooker is annular electric heating tube L3, its main body is annular, but its two ends turns up one Fixed angle, whole annular electric heating tube L3 3-D solid structures are complex, and difficulty of processing is big, and the yields of finished product is difficult to protect Card.

The content of the invention

It is an object of the invention to provide a kind of composite-curve machine.

According to an aspect of the invention, there is provided a kind of composite-curve machine, including frame and electric control box, in frame It is respectively equipped with：

Robot device, pipe end bending process is carried out and by after bending process for electrothermal tube to be transferred into broken pipe station Electrothermal tube is transferred to bend pipe station and carries out bend pipe processing；

Broken pipe device, is mainly made up of two broken pipe heads, and two broken pipe heads are fixed by railroad with frame, folding Pipe die can clamp the two ends of electrothermal tube and be rotated, so as to carry out pipe end bending process to electrothermal tube；

Swan neck system, positioned at the downstream process of broken pipe device, swan neck system has the curved mould that can be rotated, robot device Electrothermal tube after bending process is transferred to swan neck system from broken pipe device, swan neck system is using curved mould by after bending process Electrothermal tube rotational forming, is made predetermined shape.

Using the composite-curve machine of above technical scheme, the pipe end that can complete electrothermal tube simultaneously in same equipment is curved Folding and main body processing and forming, save the production time, improve production efficiency, and the composite-curve machine uses robot device To shift electrothermal tube, automaticity is high, is guarded substantially without professional, can save artificial, thus reduces and be produced into This.

In some embodiments, robot device is fixedly connected by railroad with frame, and robot device includes First manipulator, the second manipulator and the cylinder for driving the first manipulator and the second manipulator to move back and forth along railroad Group, the first manipulator is used to electrothermal tube being transferred to broken pipe device, and the second manipulator is used to turn the electrothermal tube after bending process Swan neck system is moved to, the first manipulator is connected with the first lifting drive cylinder, and the first lifting drive cylinder is used to drive first Manipulator is moved up and down, and the second manipulator is connected with the second main lifting drive cylinder and the second secondary lifting drive cylinder, and second Main lifting drive cylinder and the second secondary lifting drive cylinder are mutually concatenated, and are respectively used to drive the second manipulator to move up and down. In each processing stroke, the electrothermal tube after bending process is first gripped and is transferred to swan neck system by the second manipulator, the first machinery Hand again grips electrothermal tube the machining position for being placed on broken pipe device.First manipulator can grip electrothermal tube from storage device, Electrothermal tube can also be gripped from the exit side of other process equipments such as pipe end shrink mouth forming machine.

In some embodiments, air cylinder group slides drive cylinder, the second master including first and slides drive cylinder and second Pair slides drive cylinder, and first, which slides drive cylinder, is used to drive the first manipulator along railroad to move back and forth, the second main cunning Row drive cylinder and the second pair slide drive cylinder and mutually concatenated, and are respectively used to drive the second manipulator along railroad to move back It is dynamic.

In some embodiments, broken pipe head includes broken pipe oil cylinder, broken pipe rack and broken pipe main shaft, broken pipe rack and folding Pipe oil cylinder is connected, provided with the broken pipe gear matched with broken pipe rack outside broken pipe main shaft, and swing arm is respectively equipped with broken pipe main shaft With curved piece, briquetting and briquetting cylinder be installed, briquetting cylinder is used to drive briquetting closer or far from curved piece, broken pipe processing in swing arm When, electrothermal tube is placed in curved piece between briquetting and is secured in a press, and broken pipe oil cylinder drives folding by broken pipe rack and broken pipe gear Pipe main shaft rotates a certain angle, and then carries out pipe end bending process to electrothermal tube.

In some embodiments, pipe pressing device is further respectively had on the inside of broken pipe head, pipe pressing device includes pressure pipe cylinder With the pinch roller on the telescopic shaft of pressure pipe cylinder, pinch roller is free to rotate, and pressure pipe cylinder drives pinch roller to compress electrothermal tube.Thus The angle that can bend pipe end bending process is more accurate.

In some embodiments, a broken pipe head is provided with loose tube cylinder, and another broken pipe head is provided with servo-actuated cylinder, When broken pipe head proceeds by pipe end bending process, servo-actuated cylinder drives the broken pipe head being attached thereto along railroad in Portion is moved, and after the completion of pipe end bending process, loose tube cylinder drives the broken pipe head being attached thereto to be moved along railroad to middle part It is dynamic.Servo-actuated cylinder, which drives to move along railroad to middle part with broken pipe head, can avoid electrothermal tube shape in pipe end bending process Into the tube wall that causes of pulling force draw thin or deformation.After machining, loose tube cylinder drive broken pipe head along railroad to Middle part is moved, and electrothermal tube two ends can be made to leave bending process position, be easy to manipulator to grip.

In some embodiments, swan neck system includes bend pipe oil cylinder, bend pipe rack, bend pipe main shaft and curved mould, bend pipe tooth Bar is connected with bend pipe oil cylinder, and provided with the bend pipe gear matched with bend pipe rack outside bend pipe main shaft, curved mould is fixed on bend pipe master On axle, curved mould is provided with curved nib, and the external diameter of curved nib and electrothermal tube matches, and the head end insertion of the electrothermal tube after bending process is curved In nib and fixed, bend pipe oil cylinder drives bend pipe main shaft to rotate by bend pipe rack and bend pipe gear, and curved mould is with curved mould main shaft one Rotation is played, the electrothermal tube inserted in curved nib surrounds curved mould rotational forming.Curved nib can be positioned to electrothermal tube, Ke Yibao The uniformity of processed finished products is demonstrate,proved, the yields of finished product is substantially increased.

In some embodiments, swan neck system is additionally provided with pipe pressing device, and pipe pressing device includes pressure pipe cylinder and located at pressure Pinch roller on the telescopic shaft of pipe cylinder, pinch roller is freely rotatable, and pressure pipe cylinder drives direction of rotation of the pinch roller along curved mould by electric heating Pipe is pressed on curved mould.

In some embodiments, swan neck system is additionally provided with compression cylinder, and compression cylinder is fixed on one piece of slidable branch On frame, support is connected with a bracket gas cylinder, and a compact heap is provided with the telescopic shaft of compression cylinder, and compression cylinder is used for Drive axial direction of the compact heap along curved mould main shaft close or away from curved mould, bracket gas cylinder is used to drive support to move up and down, And then make compact heap along the vertical direction away from or close to curved mould.

In some embodiments, in addition to it is additionally provided with the adjusting means of the position for adjusting bending mould device, regulation dress Put including horizontal handwheel and longitudinal handwheel.Adjusting means can adjust the position of bending mould device by horizontal handwheel and longitudinal handwheel Put, and then make head end of the curved nib of curved mould just to the electrothermal tube after bending process, be easy to it to insert curved nib.

Brief description of the drawings

Fig. 1 be electric cooker in electrothermal tube procedure of processing schematic diagram.

Fig. 2 is the positive structure schematic of the composite-curve machine of one embodiment of the present invention.

Fig. 3 is the structure schematic diagram of composite-curve machine shown in Fig. 2.

Fig. 4 is the enlarged drawing of part shown in A in Fig. 3.

Fig. 5 is the installation diagram of composite-curve machine shown in Fig. 2.

Fig. 6 is the structural representation of robot device shown in Fig. 5.

Fig. 7 is the structural representation of broken pipe device shown in Fig. 5.

Fig. 8 is the structural representation of swan neck system shown in Fig. 5.

Fig. 9 is the internal structure schematic diagram of swan neck system shown in Fig. 8.

Figure 10 is the scheme of installation of compression cylinder shown in Fig. 8.

Figure 11 is the enlarged drawing of part shown in B in Figure 10.

Figure 12 is the structural representation of curved mould.

Figure 13 is the state diagram of curved mould machine-shaping electrothermal tube shown in Figure 12.

Embodiment

The invention will now be described in further detail with reference to the accompanying drawings.

Fig. 2 to Figure 13 schematically shows the composite-curve machine according to one embodiment of the present invention.As illustrated, The device includes frame 1 and electric control box.Robot device 2, broken pipe device 3 and swan neck system 4 are respectively equipped with frame 1.

Wherein, robot device 2 is fixedly connected by railroad 8 with frame 1, for electrothermal tube L1 to be transferred into broken pipe Station carries out pipe end bending process and the electrothermal tube L2 after bending process is transferred into the progress bend pipe processing of bend pipe station.

Robot device 2 includes the first manipulator 21, the second manipulator 22 and drives the first manipulator 21 and the second machine The air cylinder group that tool hand 22 moves back and forth along railroad 8.

Buffer 7 is equipped with the outside of first manipulator 21 and the stroke of the second manipulator 22.

First manipulator 21 is used to electrothermal tube L1 being transferred to broken pipe device 2.

Second manipulator 22 is used to the electrothermal tube L2 after bending process being transferred to swan neck system 4.

First manipulator 21 is connected with the first lifting drive cylinder 23.First lifting drive cylinder 23 is used to drive first Manipulator 21 is moved up and down.

When gripping electrothermal tube L1, the tong of the first manipulator 21 first opens, and moves down in place；Then tong is closed, Clamp electrothermal tube L1；Last first manipulator 21 is moved up.

First manipulator 21 can grip electrothermal tube L1 from storage device, can also from pipe end shrink mouth forming machine etc. other The exit side gripping electrothermal tube L1 of process equipment.

Second manipulator 22 is connected with the second main secondary lifting drive cylinder 24 of lifting drive cylinder 25 and second.

Second main lifting drive cylinder 25 is mutually concatenated with the second secondary lifting drive cylinder 24, and can drive the second machine respectively Tool hand 22 moves up and down a stroke.

In each processing stroke, the second manipulator 22 first grips the electrothermal tube L2 after bending process, then is shifted To swan neck system 4.First manipulator 21 grips electrothermal tube L1 the machining position for being placed on broken pipe device 3.

When gripping the electrothermal tube L2 after bending process, the tong of the first manipulator 22 first opens, the second main lifting driving Cylinder 2 drives it to move down in place；Then tong is closed, and clamps the electrothermal tube L2 after bending process；The main lifting of the second last Drive cylinder 2 drives the first manipulator 21 to move up.

The air cylinder group of robot device 2 slides the master of drive cylinder 26, second including first and slides drive cylinder 27 and second Pair slides drive cylinder 28.

First, which slides drive cylinder 27, is used to drive the first manipulator 21 along railroad 8 to move back and forth.Second master slides Drive cylinder 27 slides drive cylinder 28 with the second pair and mutually concatenated, and can drive the second manipulator 22 respectively along railroad 8 A mobile stroke.

Broken pipe device 3 is mainly made up of two broken pipe heads 31.Two broken pipe heads 31 are consolidated by railroad 8 and frame It is fixed.Broken pipe head 31 can clamp electrothermal tube L1 two ends and be rotated, so as to carry out pipe end bending process to electrothermal tube L1.

Wherein, broken pipe head 31 includes broken pipe oil cylinder 311, broken pipe rack 312 and broken pipe main shaft 314.

Broken pipe rack 312 is connected with broken pipe oil cylinder 311.

The outside of broken pipe main shaft 314 is provided with the broken pipe gear 313 matched with broken pipe rack 312.

Swing arm 318 and curved piece 315 are respectively equipped with broken pipe main shaft 314.

Briquetting 316 and briquetting cylinder 317 are installed in swing arm 318.Briquetting cylinder 317 be used for drive briquetting 316 close to or Away from curved piece 315.

When broken pipe is processed, electrothermal tube L1 is placed between curved piece 315 and briquetting 316 and is fixed by briquetting cylinder 317.Folding Pipe oil cylinder 311 drives broken pipe main shaft 314 to rotate a certain angle by broken pipe rack 312 and broken pipe gear 313, and then to electric heating Pipe L1 carries out pipe end bending process, and the electrothermal tube L2 after bending process is made.

In the present embodiment, the inner side of broken pipe head 31 further respectively has pipe pressing device 5.

Pipe pressing device 5 includes pressure pipe cylinder 51 and the pinch roller 52 on the telescopic shaft of pressure pipe cylinder 51.Pinch roller 52 can be certainly By rotating.Pressure pipe cylinder 51 drives pinch roller 52 to compress electrothermal tube L1.It is possible thereby to make the angle that pipe end bending process is bent more Precisely.And pinch roller 52 can be rolled in bending process along electrothermal tube L1 outer walls, thus it also avoid to electrothermal tube L1 outer walls Damage.

In two broken pipe heads 31, a broken pipe head 31 positioned at right side is provided with loose tube cylinder 32, positioned at the another of left side One broken pipe head 31 is provided with servo-actuated cylinder 33.

When broken pipe head 31 proceeds by pipe end bending process, servo-actuated cylinder 33 drives the broken pipe head 31 in left side along cunning Rail device 8 is moved to middle part, it is possible thereby to which the tube wall that the pulling force for avoiding electrothermal tube L1 from being formed in pipe end bending process is caused is drawn Thin or deformation.

After machining, loose tube cylinder 32 drives the broken pipe head 31 on right side to be moved along railroad to middle part, can be with Electrothermal tube two ends is left bending process position, be easy to the first manipulator 21 to grip.

Swan neck system 4 is located at the downstream process of broken pipe device 3.

Swan neck system 4 has the curved mould 44 that can be rotated.Second manipulator 22 is by the electrothermal tube L2 after bending process from folding Pipe device 3 is transferred to swan neck system 4.Swan neck system 4, by the electrothermal tube L2 rotational formings after bending process, is made using curved mould 44 Into the electrothermal tube L3 of predetermined shape.

Swan neck system 4 includes bend pipe oil cylinder 41, bend pipe rack 42, bend pipe main shaft 431 and curved mould 44.

Wherein, bend pipe rack 42 is connected with bend pipe oil cylinder 41.

The outside of bend pipe main shaft 431 is provided with the bend pipe gear 43 matched with bend pipe rack 42.

Curved mould 44 is fixed on bend pipe main shaft 431.

Curved mould 44 is provided with curved nib 441.The external diameter of curved nib 441 and electrothermal tube matches.

The head end of electrothermal tube L2 after bending process inserts in curved nib 441 and fixed, and bend pipe oil cylinder 41 passes through bend pipe tooth Bar 42 and bend pipe gear 43 drive bend pipe main shaft 431 to rotate, and curved mould 44 rotates with curved mould main shaft 431, insert curved nib 441 In electrothermal tube surround the curved rotational forming of mould 44, the electrothermal tube L3 of predetermined shape is made.

Curved nib 441 can be positioned to electrothermal tube, it is ensured that the uniformity of processed finished products, substantially increase finished product Yields.

In the present embodiment, swan neck system 4 also is provided with pipe pressing device 5.Pipe pressing device 5 includes pressure pipe cylinder 51 and located at pressure Pinch roller 52 on the telescopic shaft of pipe cylinder 51.Pinch roller 52 is freely rotatable, and pressure pipe cylinder 51 drives rotation of the pinch roller 52 along curved mould 44 Turn direction the electrothermal tube L2 after bending process is pressed on curved mould 44.

Swan neck system 4 is additionally provided with compression cylinder 47.

Compression cylinder 47 is fixed on one piece of slidable support 48.Support 48 is connected with a bracket gas cylinder 481.

One compact heap 471 is installed on the telescopic shaft of compression cylinder 47.

Compression cylinder 47 is used to drive axial direction of the compact heap 471 along curved mould main shaft 431 close or away from curved mould 4. Bracket gas cylinder 481 is used to drive support 48 to move up and down, and then makes compact heap 471 along the vertical direction away from or close to curved mould 44。

As shown in figure 9, bending mould device 4 is additionally provided with discharging device, including material returned cylinder 45 and stripper 46.

Wherein, material returned cylinder 45 is connected with one piece of fixed plate 451, and its telescopic shaft passes through fixed plate 451 and opposite side Stripper 46 is connected.

Curved mould 44 is located at the outside of stripper 46, and bend pipe main shaft 431 passes through fixed plate 451.Material returned cylinder 45 drives stripper 46 when pushing ahead, and stripper 46 contacts the electrothermal tube L3 of predetermined shape pipe end, the most at last electrothermal tube L3 of predetermined shape from Ejected in curved nib 441.

Conveyer belt 11 and transmission translator 12 are additionally provided with frame 1.

After the electrothermal tube L3 of predetermined shape is ejected from curved nib 441, depart from curved mould 44, the biography of lower section is dropped to naturally Send on band 11.

In the present embodiment, in addition to it is additionally provided with the adjusting means 6 of the position for adjusting bending mould device 4.Adjusting means 6 Including horizontal handwheel 61 and longitudinal handwheel 62.Adjusting means 6 can adjust curved mould by horizontal handwheel 61 and longitudinal handwheel 62 and fill 4 position is put, and then makes head end of the curved nib 441 of curved mould 44 just to the electrothermal tube L2 after bending process, is easy to its insertion curved Nib 441.

Using the composite-curve machine of above technical scheme, the pipe end that can complete electrothermal tube simultaneously in same equipment is curved Folding and main body processing and forming, save the production time, improve production efficiency, and the composite-curve machine uses robot device 2 shift electrothermal tube, and automaticity is high, is guarded substantially without professional, can save artificial, thus reduce and be produced into This.And electrothermal tube is positioned beneficial to curved nib 441, it is ensured that the uniformity of processed finished products, substantially increase finished product Yields.

Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not On the premise of departing from the invention design, various modifications and improvements can be made, these belong to the protection model of the present invention Enclose.

Claims

1. composite-curve machine, including frame and electric control box, it is characterised in that be respectively equipped with the frame：

Robot device, pipe end bending process is carried out and by the electric heating after bending process for electrothermal tube to be transferred into broken pipe station Pipe is transferred to bend pipe station and carries out bend pipe processing；

Broken pipe device, is mainly made up of two broken pipe heads, and described two broken pipe heads are consolidated by railroad and the frame Fixed, the broken pipe head can clamp the two ends of electrothermal tube and be rotated, so as to carry out pipe end bending process to electrothermal tube；

Swan neck system, positioned at the downstream process of the broken pipe device, the swan neck system has the curved mould that can be rotated, the machine Electrothermal tube after the bending process is transferred to the swan neck system, the swan neck system by tool arm device from the broken pipe device Using the curved mould by the electrothermal tube rotational forming after the bending process, predetermined shape is made.

2. composite-curve machine according to claim 1, it is characterised in that the robot device passes through railroad and institute State frame to be fixedly connected, the robot device includes the first manipulator, the second manipulator and drives first manipulator The air cylinder group moved back and forth with the second manipulator along the railroad, first manipulator is used to shift the electrothermal tube To broken pipe device, second manipulator is used to the electrothermal tube after the bending process being transferred to swan neck system, described first Manipulator is connected with the first lifting drive cylinder, and the first lifting drive cylinder is used to drive above and below first manipulator Mobile, second manipulator is connected with the second main lifting drive cylinder and the second secondary lifting drive cylinder, second master Lifting drive cylinder is mutually concatenated with the described second secondary lifting drive cylinder, and is respectively used to drive on second manipulator and is moved down It is dynamic.

3. composite-curve machine according to claim 2, it is characterised in that the air cylinder group slides driving gas including first Cylinder, the second master slide drive cylinder and the second pair slides drive cylinder, and described first, which slides drive cylinder, is used to driving described the One manipulator moves back and forth along the railroad, and second master slides drive cylinder and second pair slides drive cylinder Mutually concatenate, and be respectively used to drive second manipulator along the railroad to move back and forth.

4. composite-curve machine according to claim 1, it is characterised in that the broken pipe head includes broken pipe oil cylinder, broken pipe Rack and broken pipe main shaft, the broken pipe rack are connected with the broken pipe oil cylinder, are provided with and the broken pipe outside the broken pipe main shaft Be respectively equipped with the broken pipe gear that rack matches, the broken pipe main shaft in swing arm and curved piece, the swing arm be provided with briquetting and Briquetting cylinder, the briquetting cylinder is used to drive the briquetting closer or far from described curved piece, when broken pipe is processed, the electrothermal tube Described curved piece is placed between the briquetting and is secured in a press, the broken pipe oil cylinder passes through the broken pipe rack and the broken pipe Gear drives the broken pipe main shaft to rotate a certain angle, and then carries out pipe end bending process to the electrothermal tube.

5. composite-curve machine according to claim 1, it is characterised in that further respectively have pressure pipe on the inside of the broken pipe head Device, the pipe pressing device includes pressure pipe cylinder and the pinch roller on the telescopic shaft of the pressure pipe cylinder, and the pinch roller can be certainly By rotating, the pressure pipe cylinder drives the pinch roller to compress the electrothermal tube.

6. composite-curve machine according to claim 1, it is characterised in that a broken pipe head is provided with loose tube cylinder, Another described broken pipe head is provided with servo-actuated cylinder, when the broken pipe head proceeds by pipe end bending process, described servo-actuated Cylinder drives the broken pipe head being attached thereto to be moved along the railroad to middle part, after the completion of pipe end bending process, The loose tube cylinder drives the broken pipe head being attached thereto to be moved along the railroad to middle part.

7. composite-curve machine according to claim 1, it is characterised in that the swan neck system includes bend pipe oil cylinder, bend pipe Rack, bend pipe main shaft and curved mould, the bend pipe rack are connected with the bend pipe oil cylinder, be provided with outside the bend pipe main shaft with it is described The bend pipe gear that bend pipe rack matches, the curved mould is fixed on the bend pipe main shaft, and the curved mould is provided with curved nib, described The external diameter of curved nib and the electrothermal tube matches, and the head end of the electrothermal tube after the bending process is inserted in the curved nib simultaneously Fixed, the bend pipe oil cylinder drives the bend pipe main shaft to rotate by the bend pipe rack and the bend pipe gear, the curved mould Rotated with the curved mould main shaft, the electrothermal tube inserted in the curved nib surrounds the curved mould rotational forming.

8. composite-curve machine according to claim 7, it is characterised in that the swan neck system is additionally provided with pipe pressing device, institute Stating pipe pressing device includes pressure pipe cylinder and the pinch roller on the telescopic shaft of the pressure pipe cylinder, and the pinch roller is freely rotatable, The pressure pipe cylinder drives direction of rotation of the pinch roller along the curved mould that the electrothermal tube is pressed on the curved mould.

9. composite-curve machine according to claim 7, it is characterised in that the swan neck system is additionally provided with compression cylinder, institute State compression cylinder to be fixed on one piece of slidable support, the support is connected with a bracket gas cylinder, the compression cylinder Telescopic shaft on a compact heap is installed, the compression cylinder is used to drive axial direction of the compact heap along the curved mould main shaft Direction is close or away from the curved mould, and the bracket gas cylinder is used to drive the support to move up and down, and then makes the compression Block is along the vertical direction away from or close to the curved mould.

10. composite-curve machine according to claim 1, it is characterised in that also be used to adjust the curved mould including being additionally provided with The adjusting means of the position of device, the adjusting means includes horizontal handwheel and longitudinal handwheel.