CN110180929A - Free bend shapes swan neck system - Google Patents
Free bend shapes swan neck system Download PDFInfo
- Publication number
- CN110180929A CN110180929A CN201910511026.5A CN201910511026A CN110180929A CN 110180929 A CN110180929 A CN 110180929A CN 201910511026 A CN201910511026 A CN 201910511026A CN 110180929 A CN110180929 A CN 110180929A
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- CN
- China
- Prior art keywords
- bending die
- elbow
- mobile
- mobile platform
- tube passage
- Prior art date
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Classifications
-
- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
-
- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/06—Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
-
- 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
- B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
- B21D11/22—Auxiliary equipment, e.g. positioning devices
Abstract
The invention discloses a kind of free bends to shape swan neck system, belongs to metal complex component advanced manufacturing technology field.The free bend forming swan neck system includes device frame, propulsion device, fixed module, elbow mobile module and elbow deflection module, wherein: the propulsion device includes roller positioning plate, the roller positioning plate is equipped with feeding roller, and the feeding roller wheel forms the first tube passage；The fixed module includes stent, and the stent is equipped with the second tube passage；The elbow mobile module includes mobile platform, and the mobile platform is equipped with open-work, and movement transmitting branch is equipped between the mobile platform and mounting plate；The elbow deflection module includes hollow rotating platform, and the hollow rotating platform is equipped with bending die, and the bending die is equipped with third tube passage, and driving mechanism is equipped between the bending die and mobile platform.The spatial position that the present invention passes through change bending die, so that it may realize that complex space elbow curvature shapes, improve production efficiency.
Description
Technical field
The present invention relates to metal complex component advanced manufacturing technology fields, particularly relate to a kind of free bend forming bend pipe dress
It sets.
Background technique
Metal pipe material plays an important role in numerous industrial circles, such as: aerospace, high-speed rail, ship, automobile,
The fields such as bridge structure and building.Key player of the bending component in addition to that can undertake conveying liquid or gaseous medium, can be with
It is applied in each class formation by the features such as its high-intensitive and high rigidity and high stock utilization as bearing member.
Currently, the forming mode of metal pipe material generallys use plain bending mode, main includes going for a stroll, stretch bending, bending, push away
Curved, roll bending etc..These modes are only used for the bool that forming axis line is in the form of a single, bending radius is constant.However, golden in recent years
The steric configuration for belonging to bool is gradually complicated, and the axis form of bool is gradually evolved into space form from plane form.For
There is this axis spatial complex shape or the continually changing complicated bend component of bending radius, traditional bent tube technique just to have
There is very big application limitation.Therefore, free bend forming is increasingly becoming the technological innovation hot spot in domestic and international Plastic Forming field,
The technology not only may be implemented accurately to be effectively saved mold design production link without mould bend pipe, reduce production cost, realize section
It can be with the lightweight of equipment.Meanwhile free bend shaping actions are continuous, can be effectively prevented from the concentrations of ess-strain, because
And it is bent the test specimen good quality obtained, and there is longer service life.
With the raising that application requires bent tube technique, in especially complicated Aerospace Products, pipeline space shape
Shape complexity and formed precision require to greatly improve and complex environment under promotion that pipe fitting service life is required, all urgently
Show the tight demand to advanced bent tube technique and equipment.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of free bends to shape swan neck system, does not need replacement bending
Mold, so that it may realize that complex space bend pipe free bend shapes, reduce production cost, improve production efficiency.
In order to solve the above technical problems, present invention offer technical solution is as follows:
A kind of free bend forming swan neck system, which is characterized in that including device frame, propulsion device, fixed module, elbow
Mobile module and elbow deflection module, in which:
The propulsion device includes the roller positioning plate being arranged on described device frame, and the roller positioning plate is fixed on institute
It states in device frame, transmission turbine and worm is provided on the roller positioning plate, feeding roller is provided on the turbine, it is described to send
Expect that roller forms the first tube passage；
The fixed module is arranged in described device frame, and the fixed module includes fixed frame, described fixed frame one end
It is fixed in described device frame, the other end is provided with stent, and the second tube passage is provided in the stent；
The elbow mobile module includes the mounting plate being arranged on the outside of described device frame, and fortune is provided on the mounting plate
Dynamic transmitting branch, the motion transmission branch terminals are provided with mobile platform, are provided with open-work on the mobile platform；
The outside of the mobile platform is arranged in the elbow deflection module, and the elbow deflection module includes that can be achieved
360 degree rotation hollow rotating platform is provided with turntable on the hollow rotating platform, bending is provided on the turntable
Mould is provided with third tube passage on the bending die, and the bending can be made by being provided between the bending die and mobile platform
The driving mechanism of mould generation spatial deflection；
The axis of first tube passage, the second tube passage described in when original state, circular through-hole and third tube passage
On same straight line.
Further, the propulsion device includes 2 pieces of roller positioning plates that described device frame both ends are arranged in, and described 2 pieces
Distance between roller positioning plate is adjustable, and feeding roller is provided on the roller positioning plate and drives the worm gear of the feeding roller
Worm gearing, the feeding roller wheel form the first tube passage, are provided with feeding motor, the worm screw on described device frame
Pass through synchronous band connection with the feeding motor；
Further, the movement transmitting branch includes 3 groups of UPU movement branched chains in parallel, in which:
The UPU movement branched chain includes the first ball screw being arranged between the mounting plate and the mobile platform,
Be provided with the mobile slide bar matched with the first ball screw in the first ball screw, the first ball screw with
Mounting plate is connected by the first universal joint, and the mobile slide bar is connect with mobile platform by the second universal joint.
Further, the driving mechanism includes the hollow rotating platform being arranged on the mobile platform end face, described
It is provided with turntable on hollow rotating platform and drives the first rotating electric machine of the turntable rotation, is arranged on the turntable
There is bending die and drives the second rotating electric machine of the bending die rotation.
Further, the guide sleeve alternatively with guiding pipe fitting effect, the bending are provided in the stent
It is provided in mould alternatively for being socketed the flex housing of pipe fitting, the end of the guide sleeve and/or flex housing is set as cambered surface.
The invention has the following advantages:
Free bend forming swan neck system structure of the invention is simple, and easy to operate, no replacement is required, and bending die can be completed
The tube bending forming of differently curved radius can be easily carried out the radius bend that buckles, the angle that buckles bending, spiral
The forming of a variety of spatial complex bent members such as shape bending, curvature of space, avoid conventional bending forming technique need replacing it is curved
Bent mould is just able to achieve the defect of differently curved radius, substantially increases the efficiency of processing bending complex component and has saved opening
Cost.Have in numerous areas such as aerospace, nuclear power, automobile, naval vessel, petrochemical industry, building and other civilian industries important
Engineering application value and apparent economic benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that free bend of the invention shapes swan neck system；
Fig. 2 is the structural schematic diagram for the propulsion device that free bend of the invention shapes swan neck system；
Fig. 3 is the structural schematic diagram for the fixed module that free bend of the invention shapes swan neck system；
Fig. 4 is the structural schematic diagram for the elbow mobile module that free bend of the invention shapes swan neck system；
Fig. 5 is the structural schematic diagram for the elbow deflection module that free bend of the invention shapes swan neck system；
Fig. 6 is the structural schematic diagram that embodiment is spatially spiral bend pipe；
Fig. 7 is the structural schematic diagram for the pipe fitting bending forming principle that free bend of the invention shapes swan neck system；
Fig. 8-Figure 12 is that free bend of the invention shapes elbow in the every step of processing space spiral bending tube of swan neck system
The corresponding status diagram of deflection mechanism, wherein the figure (a) in Fig. 9-Figure 12 is the status diagram of turntable, and figure (b) is curved
The status diagram of Qu Mo.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention provides a kind of free bend forming swan neck system, as shown in figs. 1-12, including device frame 1, propulsion device
2, fixed module 3, elbow mobile module 4 and elbow deflection module 5, in which:
Propulsion device 2 includes 2 pieces of roller positioning plate 2-1 that 1 middle part of device frame is arranged in, the both ends of roller positioning plate 2-1
It is mounted in device frame 1, and the spacing of two pieces of roller positioning plate 2-1 is adjustable, 2 groups of feeding roller 2-2 settings are fixed in roller
On the plate 2-1 of position, 2 groups of feeding roller 2-2 form the first tube passage, and feeding motor 2-6 passes through synchronous belt 2-5 connection geared worm
2-4, geared worm 2-4 are meshed with transmission turbine 2-3, and transmission turbine 2-3 and feeding roller 2-2 is fixed on one by transmission shaft
It rises；
Fixed module 3 includes the fixed frame 3-1 being arranged in device frame 1, and the one end fixed frame 3-1 is plugged in device frame 1,
The other end is provided with stent 3-2, and the second tube passage 3-21 is provided on stent 3-2；
Elbow mobile module 4 includes the mounting plate 4-1 and mobile platform 4-7 for being fixed on 1 outside of device frame, mobile platform 4-
Open-work 4-71 is provided on 7, being provided between mobile platform 4-7 and mounting plate 4-1 can make mobile platform 4-7 arbitrarily square along space
Branch is transmitted to mobile movement；
Elbow deflection module 5 includes the upper hollow rotating platform 5-2 being arranged in mobile platform 4-7, hollow rotating platform
It is provided with turntable 5-3 on 5-2, bending die 5-5 is provided on turntable 5-3, third heavy connection of pipe is provided on bending die 5-5
5-51 is provided with the driving mechanism that tilt platform 5-5 can be made to deflect between bending die 5-5 and mobile platform 4-7；
First tube passage when original state, the second tube passage 3-21, open-work 4-71 and third tube passage 5-51
Axis is on same straight line.
Free bend forming swan neck system of the invention includes device frame, propulsion device, fixed module, elbow mobile module
With elbow deflection module, wherein the mobile platform in elbow mobile module, can be along X-axis, Y under the action of branch is transmitted in movement
Axis or Z-direction are mobile, to realize the movement in arbitrary direction in space；Bending die in elbow deflection module on the one hand can
It is moved under the action of mobile platform, on the other hand can realize that under the action of the driving mechanism space deflects at any angle；
Any forming of the differently curved radius of tubing and bending angle can be achieved under the interaction of mobile platform and bending die.It is answering
Used time, original state are that the axis of the first tube passage, the second tube passage, open-work and third tube passage is straight in same
On line；Pipe fitting to be processed is embedded in the first tube passage that 2 groups of feeding roller wheels are formed, is made in the conveying of feeding roller first
Under, pipe fitting to be processed sequentially passes through the third of the second tube passage of stent, the open-work of mobile platform, hollow rotating platform
Tube passage finally enters in the 4th tube passage of bending die；Then according to processing needs, transmitting branch is moved by driving
Chain adjusts the offset of mobile platform, and at this time and then bending die synchronizing moving under the action of mobile platform passes through control
Driving mechanism adjusts the amount of deflection of bending die, so that the deflection angle of bending die reaches preset value；It is curved after bending die position determines
Head mobile module and elbow deflection module are fixed, and propulsion device, by pipe fitting forward impelling, can be processed with certain speed
The pipe fitting of required shape.
To sum up, free bend forming swan neck system structure of the invention is simple, easy to operate, no replacement is required bending die
Complete the tube bending forming of differently curved radius, can be easily carried out the radius bend that buckles, the angle that buckles bending,
The forming of a variety of spatial complex bent members such as helically bent, curvature of space avoids conventional bending forming technique and needs more
The defect that bending die is just able to achieve differently curved radius is changed, the efficiency of processing bending complex component is substantially increased and has saved and open
The cost of curtain.There is weight in numerous areas such as aerospace, nuclear power, automobile, naval vessel, petrochemical industry, building and other civilian industries
The engineering application value and apparent economic benefit wanted.
Preferably, movement transmitting branch includes 3 groups of UPU movement branched chains in parallel, in which: UPU movement branched chain includes fixing
Be provided on ball-screw 4-4 between the mounting plate 4-1 and mobile platform 4-7 in the outside of device frame 1, ball-screw 4-4 with
The mobile slide bar 4-5, ball-screw 4-4 and mounting plate 4-1 that ball-screw 4-4 is matched are connect by the first universal joint 4-2, are moved
Moving slide-bar 4-5 is connect with mobile platform 4-7 by the second universal joint 4-6.Ball-screw 4-4 and mobile slide bar 4-5 form movement
Secondary P, the first universal joint 4-2 and the second universal joint 4-6 are two U pairs, to form UPU movement branched chain；Ball-screw 4-4 is in electricity
It is rotated under the driving effect of machine 4-1, drives mobile slide bar 4-5 mobile, mobile slide bar 4-5 is in ball-screw 4-4, the first universal joint
Movement of the mobile platform 4-7 in arbitrary direction in space can be driven under the collective effect of 4-2 and the second universal joint 4-6.
Further, driving mechanism includes the hollow rotating platform 5-2 being arranged on the end face mobile platform 4-7, hollow rotation
Turn platform 5-2 to include first gear 5-23, the second gear 5-24 being meshed with first gear and fix with second gear 5-24
Rotary body 5-22, spill spin block 5-3 and rotary body 5-22 fixation move synchronously, drive of the spill spin block 5-3 in the first rotating electric machine 5-1
Dynamic lower first gear 5-23, two gear 5-24 and the rotary body 5-22 of passing through can be rotated around the axis of hollow rotating platform 5-2；Rotation
Bending die 5-5 is provided on block 5-3, bending die 5-5 can rotate under the drive of the second rotating electric machine 5-4 around α axis；First,
Bending die can be achieved under the collective effect of second rotating electric machine to deflect at any angle in space.
Further, propulsion device 2 includes that roller positioning plate 2-1, roller positioning plate 2-1 and device frame 1 are solid by bolt
Geared worm 2-4 fixed to connect, that transmission turbine 2-3 is provided on roller positioning plate 2-1 and is meshed with transmission turbine 2-3, passes
Feeding roller 2-2 is provided on dynamic turbine 2-3, transmission turbine 2-3 is driven with feeding roller 2-2 and is fixedly connected by axis, device
Feeding motor 2-6 is provided on frame 1, feeding motor 2-6 passes through synchronous band connection with geared worm 2-4.In use, first will
Pipe fitting to be processed is put into the groove between 2 groups of feeding rollers, then adjusts the spacing of two pieces of roller positioning plates, fixed by roller
The bolt of position board ends compresses pipe fitting, finally drives feeding motor, completes the conveying to pipe fitting to be processed by feeding roller.
As an improvement of the present invention, the guiding alternatively with guiding pipe fitting effect is provided in stent 3-2
3-22 is covered, is provided in bending die 5-5 alternatively for being socketed the flex housing 5-52 of pipe fitting, guide sleeve 3-22 and/or bending
The end of set 5-52 is set as cambered surface.By the guide sleeve and flex housing of replacement different inner diameters, the pipe fitting of different-diameter can be processed,
Expand the scope of application of the invention；In order to guarantee the machining accuracy and processing quality of pipe fitting, by the end of guide sleeve and/or flex housing
End is set as cambered surface.
Any bending radius can be processed free bend forming swan neck system of the invention and the spatial complex of bending angle is curved
Curved tube part, below with by the aluminium-alloy pipe of diameter 15mm, wall thickness 2mm be processed into spatially spiral bend pipe as shown in FIG. 6 (radius from
50mm -65mm -80mm -100mm successively transition) for specifically introduce action process of the invention.
As shown in fig. 7, L is the distance between stent 3-2 and bending die 5-5, u is the offset of mobile platform 4-7, θ
For the deflection angle of bending die 5-5, R is the bending radius of pipe fitting.
Step 1: by the first tube passage of pipe fitting to be processed insertion propulsion device, being acted in feeding roller 2-2 conveying
Under, pipe fitting to be processed sequentially passes through the open-work 4-71 of the second tube passage 3-21 of stent 3-2, mobile platform 4-7, most laggard
Enter in the third tube passage 5-51 of bending die 5-5；
Step 2: radius of machining is the spatially spiral pipe of the part 50mm:
Transmitting branch is moved by control, so that the distance v between stent 3-2 and bending die 5-51It is mobile flat for 30mm
The offset u of platform 4-71For 10mm, while the second rotation rotating motor 5-4 is controlled, so that bending die 5-5 rotates counterclockwise around α axis
36.89°(θ1), bending die 5-5 moves to position shown in Fig. 9 as the position Fig. 8 at this time；
Step 3: radius of machining is the spatially spiral pipe of the part 65mm:
Transmitting branch is moved by control, so that the distance v between stent 3-2 and bending die 5-52It is mobile flat for 30mm
The offset u of platform 4-72For 7.34mm, while the first rotation rotating motor 5-1 and the second rotating electric machine 5-4 is controlled, so that turntable
5-3 rotates clockwise 7.12 ° of (Ψ around z-axis2), bending die rotates 26.56 ° of (θ around α axis counterclockwise2), the sky of bending die 5-5 at this time
Between posture position shown in Figure 10 moved to as the position Fig. 9；
Step 4: radius of machining is the spatially spiral pipe of the part 80mm:
Transmitting branch is moved by control, so that the distance v between stent 3-2 and bending die 5-53It is mobile flat for 30mm
The offset u of platform 4-73For 5.84mm, while the first rotation rotating motor 5-1 and the second rotating electric machine 5-4 is controlled, so that turntable
5-3 rotates clockwise 11.02 ° of (Ψ around z-axis3), bending die rotates 19.08 ° of (θ around α axis counterclockwise3), bending die 5-5 at this time
Spatial attitude moves to position shown in Figure 11 as the position Figure 10；
Step 5: radius of machining is the spatially spiral pipe of the part 100mm:
Transmitting branch is moved by control, so that the distance v between stent 3-2 and bending die 5-54It is mobile flat for 30mm
The offset u of platform 4-74For 4.61mm, while the first rotation rotating motor 5-1 and the second rotating electric machine 5-4 is controlled, so that turntable
5-3 rotates clockwise 12.35 ° of (Ψ around z-axis4), bending die rotates 12.35 ° of (θ around α axis counterclockwise4), bending die 5-5 at this time
Spatial attitude moves to position shown in Figure 12 as the position Figure 11；
Step 6: in the action process of 2-step 5 of above-mentioned steps, propulsive mechanism 2 is always with certain speed forward impelling
Pipe fitting, whole process pipe fitting is by forward impelling 1600mm, and after processing is completed, elbow mobile module and elbow are inclined for spatially spiral bend pipe
Revolving die block reset.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of free bend shapes swan neck system, which is characterized in that moved including device frame, propulsion device, fixed module, elbow
Dynamic model block and elbow deflection module, in which:
The propulsion device includes the roller positioning plate being arranged on described device frame, and the roller positioning plate is fixed on the dress
It sets in frame, transmission turbine and worm is provided on the roller positioning plate, feeding roller, the feeding roller are provided on the turbine
Wheel forms the first tube passage；
The fixed module is arranged in described device frame, and the fixed module includes fixed frame, and described fixed frame one end is fixed
In described device frame, the other end is provided with stent, and the second tube passage is provided in the stent；
The elbow mobile module includes the mounting plate being arranged on the outside of described device frame, and movement is provided on the mounting plate and is passed
Branch is passed, the motion transmission branch terminals are provided with mobile platform, are provided with open-work on the mobile platform；
The outside of the mobile platform is arranged in the elbow deflection module, and the elbow deflection module includes that can be achieved 360 degree
Rotary hollow rotating platform is provided with turntable on the hollow rotating platform, bending die is provided on the turntable, described
Third tube passage is provided on bending die, being provided between the bending die and mobile platform can make the bending die that sky occur
Between the driving mechanism that deflects；
The axis of first tube passage, the second tube passage described in when original state, open-work and third tube passage is same
On straight line.
2. free bend according to claim 1 shapes swan neck system, which is characterized in that the movement transmits branch and includes
3 groups of UPU movement branched chains in parallel, in which:
The UPU movement branched chain includes the first ball screw being arranged between the mounting plate and the mobile platform, described
The mobile slide bar matched with the first ball screw, the first ball screw and installation are provided in first ball screw
Plate is connected by the first universal joint, and the mobile slide bar is connect with mobile platform by the second universal joint.
3. free bend according to claim 1 shapes swan neck system, which is characterized in that the driving mechanism includes setting
Hollow rotating platform on the mobile platform end face is provided with turntable on the hollow rotating platform and drives the rotation
First rotating electric machine of turntable rotation is provided with bending die on the turntable and drives the second rotation of the bending die rotation
Motor.
4. free bend according to claim 1 shapes swan neck system, which is characterized in that the propulsion device includes setting
2 pieces of roller positioning plates at described device frame both ends, the distance between 2 pieces of roller positioning plates is adjustable, the roller positioning plate
On be provided with feeding roller and drive the Worm and worm-wheel gearing of the feeding roller, the feeding roller wheel forms the first pipe fitting
Channel is provided with feeding motor on described device frame, and the worm screw passes through synchronous band connection with the feeding motor.
5. free bend according to any one of claims 1-4 shapes swan neck system, which is characterized in that in the stent
It is provided with the guide sleeve alternatively with guiding pipe fitting effect, is provided in the bending die alternatively for being socketed pipe fitting
Flex housing, the end of the guide sleeve and/or flex housing is set as cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910511026.5A CN110180929A (en) | 2019-06-13 | 2019-06-13 | Free bend shapes swan neck system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910511026.5A CN110180929A (en) | 2019-06-13 | 2019-06-13 | Free bend shapes swan neck system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110180929A true CN110180929A (en) | 2019-08-30 |
Family
ID=67721659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910511026.5A Withdrawn CN110180929A (en) | 2019-06-13 | 2019-06-13 | Free bend shapes swan neck system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110180929A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111434419A (en) * | 2020-04-02 | 2020-07-21 | 重庆市凌鹤科技有限公司 | Intelligent 3D space profile forming equipment |
| CN111530996A (en) * | 2020-06-15 | 2020-08-14 | 南京航空航天大学 | Tube free bending device based on eccentric structure design and process analysis method thereof |
| CN112845733A (en) * | 2021-01-14 | 2021-05-28 | 西北工业大学 | Die controlled by parallel arm type structure and used for free bending forming process |
| CN113083970A (en) * | 2021-05-17 | 2021-07-09 | 燕山大学 | Elbow forming device based on parallel mechanism |
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| JP2000190028A (en) * | 1998-12-24 | 2000-07-11 | Nishiyama Seisakusho:Kk | Spiral shape processing of metal pipe material or metal bar material |
| CN102240707A (en) * | 2011-05-10 | 2011-11-16 | 山东雷帕得弹簧有限公司 | Automatic pipe bending device and pipe bending process thereof |
| CN103736795A (en) * | 2014-01-10 | 2014-04-23 | 株洲双菱科技有限公司 | Steel pipe heating space bending method and heating space pipe bending machine |
| CN103978075A (en) * | 2014-05-23 | 2014-08-13 | 浙江国华家具有限公司 | Pipe bending machine for rapidly manufacturing support frame of leisure chair |
| CN108421862A (en) * | 2018-02-01 | 2018-08-21 | 山东大学 | 3 D auto bending forming bending machine |
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2019
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| JP2000190028A (en) * | 1998-12-24 | 2000-07-11 | Nishiyama Seisakusho:Kk | Spiral shape processing of metal pipe material or metal bar material |
| CN102240707A (en) * | 2011-05-10 | 2011-11-16 | 山东雷帕得弹簧有限公司 | Automatic pipe bending device and pipe bending process thereof |
| CN103736795A (en) * | 2014-01-10 | 2014-04-23 | 株洲双菱科技有限公司 | Steel pipe heating space bending method and heating space pipe bending machine |
| CN103978075A (en) * | 2014-05-23 | 2014-08-13 | 浙江国华家具有限公司 | Pipe bending machine for rapidly manufacturing support frame of leisure chair |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111434419A (en) * | 2020-04-02 | 2020-07-21 | 重庆市凌鹤科技有限公司 | Intelligent 3D space profile forming equipment |
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| CN111530996B (en) * | 2020-06-15 | 2021-08-06 | 南京航空航天大学 | Tube free bending device based on eccentric structure design and process analysis method thereof |
| CN112845733A (en) * | 2021-01-14 | 2021-05-28 | 西北工业大学 | Die controlled by parallel arm type structure and used for free bending forming process |
| CN112845733B (en) * | 2021-01-14 | 2023-02-28 | 西北工业大学 | Die controlled by parallel arm type structure and used for free bending forming process |
| CN113083970A (en) * | 2021-05-17 | 2021-07-09 | 燕山大学 | Elbow forming device based on parallel mechanism |
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Application publication date: 20190830 |
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| WW01 | Invention patent application withdrawn after publication |