CN110936164A - Novel metal pipe bending machine and pipe bending processing technology thereof - Google Patents
Novel metal pipe bending machine and pipe bending processing technology thereof Download PDFInfo
- Publication number
- CN110936164A CN110936164A CN201911082102.1A CN201911082102A CN110936164A CN 110936164 A CN110936164 A CN 110936164A CN 201911082102 A CN201911082102 A CN 201911082102A CN 110936164 A CN110936164 A CN 110936164A
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- metal pipe
- bending
- rotating arm
- core
- sleeve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D9/00—Bending tubes using mandrels or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D21/00—Machines or devices for shearing or cutting tubes
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses a novel metal pipe body bending machine which comprises a rack, and a material pushing mechanism, a ring cutting mechanism and a bending mechanism which are arranged on the rack, wherein the material pushing mechanism and the ring cutting mechanism and the bending mechanism comprise core rods, material pushing sleeves sleeved on the core rods and sleeve linear driving assemblies; the circular cutting mechanism performs circumferential circular cutting operation; the bending mechanism comprises a pressing wheel, a pipe bending die, a rotating arm, a clamping wheel and a filling core which are arranged on the rack; the pressing wheel and the pipe bending die are respectively positioned on two sides of the extension line of the core rod; the rotating arm rotates by taking the rotating shaft as a central shaft; the clamping wheel and the filling core are arranged on the rotating arm and rotate synchronously with the rotating arm. The metal pipe bending machine is simple in structure, can be improved on the existing pipe bending machine, is low in modification cost and wide in application range, and can effectively solve the problems of outer side thinning, pulling crack and inner side instability and wrinkling of a metal pipe body in the bending process.
Description
Technical Field
The invention relates to the field of hardware processing equipment, in particular to a novel metal pipe bending machine and a pipe bending processing technology thereof.
Background
The plastic processing of the pipe plays an important role in modern industrial production, and the plastic bending forming of the pipe is an important component of the plastic forming technology of the pipe, so the pipe bending forming technology is concerned and rapidly developed. With the vigorous development of the domestic manufacturing industry, the demand of the pipe bender is diversified. However, the bending effect of the conventional bending machine is not satisfactory when the bending machine performs bending. In the bending deformation process, the compressive stress generated by the inner arc wall of the elbow is overlarge, and the circumferential tensile stress generated by the outer arc wall is overlarge. From the plastic mechanics perspective, the compressed pipe wall of the inner arc wall of the elbow is unstably thickened. When the thickness thereof increases to a certain extent, the inner arc wall is wrinkled. The area of greatest thinning of the outer curved wall of the elbow should be where the stress is concentrated. In this position, the metal tends to flow to both sides. When thinning is severe, cracking may be caused. Therefore, a novel metal pipe bending machine with good bending forming quality and a pipe bending processing technology thereof are needed.
Disclosure of Invention
In order to solve the technical problems, the invention provides a novel metal pipe bending machine and a pipe bending processing technology thereof, aiming at the defects in the prior art, a circular cutting mechanism is adopted to cut off and bend the pipe firstly, so that the stress at the bending part is reduced, and meanwhile, the internal elastic support is realized through a filling core, so that the problems that the bending forming effect of the existing pipe bending machine is unsatisfactory, the yield is low, and the bending operation of the pipe with thinner wall thickness cannot be adapted are solved.
In order to achieve the purpose, the technical scheme of the invention is as follows: novel metal pipe bender, include
A frame;
the pushing mechanism is arranged on the rack; the pushing mechanism comprises a core rod, a pushing sleeve sleeved on the core rod and a sleeve linear driving assembly for driving the pushing sleeve to be arranged along the length direction of the core rod;
the circular cutting mechanism is positioned at one end of the material pushing mechanism; the ring cutting mechanism performs circumferential ring cutting operation;
a bending mechanism located in the longitudinal direction of the mandrel; the bending mechanism comprises a pressing wheel, a pipe bending die, a rotating arm, a clamping wheel and a filling core which are arranged on the rack; the pressing wheel and the pipe bending die are respectively positioned on two sides of the extension line of the core rod; the rotating arm is movably arranged on the rack and rotates by taking the rotating shaft as a central shaft; the rotating shaft of the rotating arm is coaxially arranged with the axis of the pipe bending die; the clamping wheel and the filling core are arranged on the rotating arm and rotate synchronously with the rotating arm; the filling core is of a hollow tubular structure and is an inflatable filling soft body.
As a preferable mode of the present invention, one end of the mandrel is provided with a mounting seat, and the mounting seat is located at the other end of the ring mechanism; the core rod is fixed on the mounting seat; the sleeve linear driving assembly comprises a sleeve sliding rail and a sleeve sliding block; the sleeve slide rail is arranged along the length direction of the mandrel; the sleeve sliding block is movably arranged on the sleeve sliding rail and moves along the sleeve sliding rail; the material pushing sleeve is arranged on the sleeve sliding block; the material pushing sleeve and the core rod are coaxially arranged.
As a preferred scheme of the invention, the circular cutting mechanism comprises a fixed bearing, a circular cutting disc, a circular cutting gear, a cutter propelling block, a cutter holder and a cutter body; the fixed bearing is arranged on the frame and is coaxial with the core rod; the ring cutting disc is of a circular ring structure and is arranged in the fixed bearing; an annular cutting gear which is coaxial with the annular cutting disc is arranged on one side of the annular cutting disc; a cutter propelling block is arranged on the inner side of the circular cutting disc; the cutter propelling block is connected with the cutter holder and drives the cutter holder to move along the radial direction of the circular cutting disc; the cutter holder is provided with a cutter body.
As a preferred scheme of the invention, guide posts are arranged on two sides of the tool apron; the tool apron is sleeved on the guide post.
As a preferable scheme of the invention, a gear driving component is arranged on the frame; the gear driving assembly drives the circular cutting gear to rotate to drive the circular cutting disc to rotate synchronously.
As a preferable scheme of the invention, the filling core comprises a rubber supporting block and a crease-resistant shape-retaining pipe; the rubber supporting blocks are positioned at two ends of the crease-resistant pipe; the rubber supporting blocks are of cylindrical structures, and a plurality of rubber supporting blocks are arranged at intervals; the rubber supporting blocks and the wrinkle-resistant shape-retaining pipes are connected through high-pressure air pipes to form a bead string structure; the crease-resistant pipe is a cylindrical hollow high-pressure resistant rubber pipe.
As a preferable scheme of the invention, a rotating arm driving motor and a reduction box for driving the rotating arm are arranged on the frame; the rotating arm driving motor is connected with the reduction gearbox; the reduction gearbox is connected with the rotating arm.
As a preferred scheme of the invention, a movable adjusting seat is arranged on the rotating arm; the movable adjusting seat is movably clamped on an adjusting seat slide rail along the radial direction of the pipe bending die; the clamping wheels and the filling cores are arranged on the movable adjusting seat, and the arrangement direction is arranged along the direction vertical to the sliding rail of the adjusting seat; a high-pressure inflation connector is arranged on the movable adjusting seat; the high-pressure inflation connector is communicated with the high-pressure air pipe.
The utility model provides a novel metal pipe body processing technology that bends, uses above-mentioned arbitrary novel metal pipe body bender, fixes the metal pipe body earlier, through the circular cutting mechanism cuts the metal pipe body into suitable length, then inserts to the metal pipe body the packing core makes the packing core be located the portion of bending, fills into gas in to the packing core, carries out elastic support to the metal pipe body is inside, bends the metal pipe body through bending the mechanism at last, takes out after the packing core exhausts, accomplishes the process of bending.
Through the technical scheme, the technical scheme of the invention has the beneficial effects that: the metal pipe bending machine is simple in structure, can be improved on the existing pipe bending machine, is low in modification cost and wide in application range, can effectively solve the problems of outer side thinning, pulling crack and inner side instability and wrinkling of a metal pipe body in the bending process, and is high in yield, good in bending quality and good in using effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the ring cutting mechanism of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. frame 2, core rod 3, pushing sleeve
4. Ring cutting disc 5, fixed bearing 6, pinch roller
7. Pipe bending die 8, rotating arm 9, movable adjusting seat
10. Clamping wheel 11, filling core 12, ring-cutting gear
13. Cutter propulsion block 14, guide post 15 and cutter seat
16. A cutter body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
With reference to fig. 1 and 2, the present invention provides a novel metal pipe bending machine, which is used for bending a metal pipe to form an elbow with a smooth pipe wall. The invention comprises a rack 1, and a material pushing mechanism, a circular cutting mechanism and a bending mechanism which are arranged on the rack 1. The material pushing mechanism is used for feeding the metal pipe body, the circular cutting mechanism is used for performing circular cutting on the metal pipe body, and the metal pipe body is cut off according to the length of the elbow; the bending mechanism bends the cut metal pipe body.
Specifically, the pushing mechanism comprises a core rod 2, a pushing sleeve 3 sleeved on the core rod 2, and a sleeve linear driving assembly for driving the pushing sleeve 3 to be arranged along the length direction of the core rod 2. One end of the core rod 2 is provided with a mounting seat which is positioned at the other end of the ring mechanism. The core rod 2 is fixed on the mounting seat. The sleeve linear driving assembly comprises a sleeve sliding rail and a sleeve sliding block; the sleeve slide rail is arranged along the length direction of the core rod 2. The sleeve sliding block is movably arranged on the sleeve sliding rail and moves along the sleeve sliding rail. The sleeve sliding rail and the sleeve sliding block can be matched by adopting a conventional mechanical structure of a linear motion pair, such as a ball screw pair and the like, and can also adopt a linear guide rail structure, such as a conventional sliding friction guide rail, a rolling friction guide rail, an elastic friction guide rail, a fluid friction guide rail and the like. The material pushing sleeve 3 is arranged on the sleeve sliding block; the pushing sleeve 3 is arranged coaxially with the core rod 2. When the metal pipe pushing device is used, the metal pipe body is sleeved on the core rod 2, the inner diameter of the material pushing sleeve 3 is not larger than the outer diameter of the metal pipe body, and the material pushing sleeve 3 moves under the action of the sleeve linear driving assembly, so that the metal pipe body is pushed to move along the core rod 2.
The circular cutting mechanism is positioned at one end of the pushing mechanism. The ring cutting mechanism comprises a fixed bearing 5, a ring cutting disc 4, a ring cutting gear 12, a cutter propelling block 13, a cutter holder 15 and a cutter body 16. The fixed bearing 5 is mounted on the frame 1 and is arranged coaxially with the mandrel 2. The ring cutting disc 4 is of a circular ring structure and is arranged in a fixed bearing 5. An annular cutting gear 12 is arranged coaxially with the annular cutting disk 4 on one side of the annular cutting disk 4. A cutter propelling block 13 is arranged on the inner side of the circular cutting disk 4. The cutter pushing block 13 is connected with the cutter holder 15 and drives the cutter holder 15 to move along the radial direction of the circular cutting disk 4. The cutter propulsion block 13 mainly realizes the radial feeding of the cutter body 16 along the metal pipe body, the cutter propulsion block 13 is an existing assembly, and the propulsion rod of the micro motor driving screw rod structure moves along the radial direction of the metal pipe body, so that the cutter holder 15 is driven to move. The cutter propulsion block 13 has high action precision and good stability, and can effectively ensure the cutting operation quality of the cutter body 16. The cutter holder 15 is provided with a cutter body 16. In order to improve the moving stability of the tool apron 15, guide posts 14 are arranged on two sides of the tool apron 15; the tool holder 15 is sleeved on the guide post 14. A gear driving component is arranged on the frame 1; the gear drive assembly drives the ring cutting gear 12 to rotate, and drives the ring cutting disc 4 to rotate synchronously. The gear drive assembly may employ a gear drive motor to drive the ring gear 12 in a synchronous rotation through a reduction gear set at a low speed with a high torque, using gear engagement. When the cutting device is used, the gear driving component drives the ring cutting gear 12 to rotate, so that the ring cutting disc 4 is driven to rotate, the cutter body 16 rotates circumferentially around a metal pipe body, the cutter pushing block 13 is used for feeding the cutter body 16 along the radial direction of the metal pipe body, the metal pipe body is cut, and the metal pipe body is cut off.
The bending mechanism is located in the longitudinal direction of the mandrel bar 2. The bending mechanism comprises a pressing wheel 6, a pipe bending die 7, a rotating arm 8, a clamping wheel 10 and a filling core 11 which are arranged on the machine frame 1. The pinch roller 6 and the pipe bending die 7 are respectively positioned on two sides of the extension line of the core rod 2. The rotating arm 8 is movably mounted on the frame 1, and the rotating arm 8 rotates by taking the rotating shaft as a central shaft. The rotating arm 8 is driven by a conventional driving mode, for example, a rotating arm driving motor and a reduction box for driving the rotating arm 8 are arranged on the rack 1; the rotating arm driving motor is connected with the reduction gearbox; the reduction gearbox is connected with the rotating arm 8. The driving of the rotor arm 8 is achieved by means of a rotor arm drive motor. The rotating shaft of the rotating arm 8 is arranged coaxially with the axis of the pipe bending die 7. The gripper wheel 10 and the filler core 11 are mounted on the swivel arm 8 and rotate synchronously with the swivel arm 8. The filling core 11 is a hollow tubular structure, and the filling core 11 is an inflatable filling soft body. Preferably, the filling core 11 comprises a rubber support block and a wrinkle-resistant retention tube. The rubber supporting blocks are positioned at two ends of the crease-resistant pipe; the rubber supporting blocks are of cylindrical structures, and a plurality of rubber supporting blocks are arranged at intervals; the rubber supporting blocks and the anti-wrinkling shape-retaining pipes are connected through high-pressure air pipes to form a bead string structure; the crease-resistant pipe is a cylindrical hollow high-pressure resistant rubber pipe. The pushing mechanism enables the metal pipe body to move along the core rod 2, the filling core 11 extends into the metal pipe body, when the metal pipe body is not inflated, the filling core 11 is in clearance fit with the metal pipe body, and after the metal pipe body is inflated, the filling core 11 is in interference fit with the metal pipe body, tightly attached to the inner wall of the metal pipe body and supported on the inner side of the metal pipe body. The pressing wheel 6, the pipe bending die 7 and the clamping wheel 10 are used for positioning and fixing the outer pipe wall of the metal pipe body, the rotating arm 8 rotates, the metal pipe body is bent under the action of the pipe bending die 7 and the clamping wheel 10, the metal pipe body is bent, the filling core 11 deforms along with the metal pipe body in the bending process, elastic support is continuously carried out on the metal pipe body, and the quality of the metal pipe body in the bending process is guaranteed.
In order to adapt to metal pipe bodies with different diameters, the rotating arm 8 is provided with a movable adjusting seat 9. The movable adjusting seat 9 is movably clamped on an adjusting seat slide rail along the radial direction of the pipe bending die 7; the clamping wheels 10 and the filling cores 11 are arranged on the movable adjusting seat 9, and the arrangement direction is arranged along the direction of a slide rail of the vertical adjusting seat; a high-pressure inflation connector is arranged on the movable adjusting seat 9; the high-pressure inflation connector is communicated with the high-pressure air pipe. The high-pressure air pipe is inflated through the high-pressure inflation connector, and then the high-pressure inflation of the filling core 11 is achieved.
The utility model provides a novel metal pipe body processing technology that bends, uses arbitrary novel metal pipe body bender of the aforesaid, fixes the metal pipe body earlier, cuts the metal pipe body into through circular cutting mechanism and is fit for length, then inserts the refill 11 into the metal pipe body, makes refill 11 be located the portion of bending, fills gaseously in to refill 11, carries out elastic support to the metal pipe body is inside, bends the metal pipe body through the mechanism of bending at last, takes out after 11 exhaust of refill, accomplishes the process of bending. The processing technology firstly cuts the metal pipe body, can effectively release the internal stress of the bending part when bending through the two ends of the metal pipe body, compensates the thinning and pulling crack of the outer side of the metal pipe body, and simultaneously carries out internal elastic support through the filling core 11, thereby improving the problem of buckling of the inner side of the metal pipe body.
Through the specific embodiment, the beneficial effects of the invention are as follows: the metal pipe bending machine is simple in structure, can be improved on the existing pipe bending machine, is low in modification cost and wide in application range, can effectively solve the problems of outer side thinning, pulling crack and inner side instability and wrinkling of a metal pipe body in the bending process, and is high in yield, good in bending quality and good in using effect.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A novel metal pipe bender is characterized by comprising
A frame;
the pushing mechanism is arranged on the rack; the pushing mechanism comprises a core rod, a pushing sleeve sleeved on the core rod and a sleeve linear driving assembly for driving the pushing sleeve to be arranged along the length direction of the core rod;
the circular cutting mechanism is positioned at one end of the material pushing mechanism; the ring cutting mechanism performs circumferential ring cutting operation;
a bending mechanism located in the longitudinal direction of the mandrel; the bending mechanism comprises a pressing wheel, a pipe bending die, a rotating arm, a clamping wheel and a filling core which are arranged on the rack; the pressing wheel and the pipe bending die are respectively positioned on two sides of the extension line of the core rod; the rotating arm is movably arranged on the rack and rotates by taking the rotating shaft as a central shaft; the rotating shaft of the rotating arm is coaxially arranged with the axis of the pipe bending die; the clamping wheel and the filling core are arranged on the rotating arm and rotate synchronously with the rotating arm; the filling core is of a hollow tubular structure and is an inflatable filling soft body.
2. A novel metal pipe bender according to claim 1, wherein one end of said mandrel is provided with a mounting seat, said mounting seat being located at the other end of said ring mechanism; the core rod is fixed on the mounting seat; the sleeve linear driving assembly comprises a sleeve sliding rail and a sleeve sliding block; the sleeve slide rail is arranged along the length direction of the mandrel; the sleeve sliding block is movably arranged on the sleeve sliding rail and moves along the sleeve sliding rail; the material pushing sleeve is arranged on the sleeve sliding block; the material pushing sleeve and the core rod are coaxially arranged.
3. The novel metal pipe bending machine according to claim 2, wherein the circular cutting mechanism comprises a fixed bearing, a circular cutting disc, a circular cutting gear, a cutter pushing block, a cutter holder and a cutter body; the fixed bearing is arranged on the frame and is coaxial with the core rod; the ring cutting disc is of a circular ring structure and is arranged in the fixed bearing; an annular cutting gear which is coaxial with the annular cutting disc is arranged on one side of the annular cutting disc; a cutter propelling block is arranged on the inner side of the circular cutting disc; the cutter propelling block is connected with the cutter holder and drives the cutter holder to move along the radial direction of the circular cutting disc; the cutter holder is provided with a cutter body.
4. A novel metal pipe bender according to claim 3, wherein guide posts are provided on both sides of said tool holder; the tool apron is sleeved on the guide post.
5. A novel metal tube bending machine according to claim 3, wherein a gear drive assembly is mounted on said frame; the gear driving assembly drives the circular cutting gear to rotate to drive the circular cutting disc to rotate synchronously.
6. A novel metal pipe bender as claimed in claim 3, wherein said filler core comprises a rubber support block and a wrinkle resistant retainer; the rubber supporting blocks are positioned at two ends of the crease-resistant pipe; the rubber supporting blocks are of cylindrical structures, and a plurality of rubber supporting blocks are arranged at intervals; the rubber supporting blocks and the wrinkle-resistant shape-retaining pipes are connected through high-pressure air pipes to form a bead string structure; the crease-resistant pipe is a cylindrical hollow high-pressure resistant rubber pipe.
7. A novel metal pipe bender according to claim 3, wherein a rotating arm driving motor and a reduction box for driving said rotating arm are mounted on said frame; the rotating arm driving motor is connected with the reduction gearbox; the reduction gearbox is connected with the rotating arm.
8. A novel metal pipe bender according to claim 6, wherein said rotating arm is provided with a movable adjusting seat; the movable adjusting seat is movably clamped on an adjusting seat slide rail along the radial direction of the pipe bending die; the clamping wheels and the filling cores are arranged on the movable adjusting seat, and the arrangement direction is arranged along the direction vertical to the sliding rail of the adjusting seat; a high-pressure inflation connector is arranged on the movable adjusting seat; the high-pressure inflation connector is communicated with the high-pressure air pipe.
9. A novel metal pipe bending processing technology is characterized in that the novel metal pipe bending machine according to any one of claims 1 to 8 is used, a metal pipe body is fixed, the metal pipe body is cut into a proper length through the circular cutting mechanism, the filling core is inserted into the metal pipe body, the filling core is located at a bending portion, gas is filled into the filling core, elastic support is conducted on the interior of the metal pipe body, the metal pipe body is bent through the bending mechanism, and the filling core is extracted after exhausting, so that the bending process is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911082102.1A CN110936164A (en) | 2019-11-07 | 2019-11-07 | Novel metal pipe bending machine and pipe bending processing technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911082102.1A CN110936164A (en) | 2019-11-07 | 2019-11-07 | Novel metal pipe bending machine and pipe bending processing technology thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110936164A true CN110936164A (en) | 2020-03-31 |
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ID=69907257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911082102.1A Pending CN110936164A (en) | 2019-11-07 | 2019-11-07 | Novel metal pipe bending machine and pipe bending processing technology thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110936164A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458209A (en) * | 2021-07-05 | 2021-10-01 | 广州高谱机械科技有限公司 | Variable curvature bending method capable of improving stability of section bar |
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| EP0108193A2 (en) * | 1982-11-04 | 1984-05-16 | Rigobert Dipl.-Ing. Schwarze | Pipe-bending machine |
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| CN108582196A (en) * | 2018-05-17 | 2018-09-28 | 宁波恒元精工管阀科技有限公司 | A kind of pipeline girdling machine |
| CN108687189A (en) * | 2018-05-17 | 2018-10-23 | 张晓锋 | A kind of steel pipe bender |
| CN210907545U (en) * | 2019-11-25 | 2020-07-03 | 辽宁工程职业学院 | Pipe fitting multi-angle equipment of bending for machining |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB559406A (en) * | 1942-11-26 | 1944-02-17 | Arthur La Rue Parker | Improvements in metal tube or pipe bending jigs |
| EP0108193A2 (en) * | 1982-11-04 | 1984-05-16 | Rigobert Dipl.-Ing. Schwarze | Pipe-bending machine |
| TW200738370A (en) * | 2006-04-13 | 2007-10-16 | Ying Lin Machine Ind Co Ltd | Pipe turning device for a pipe bending machine |
| CN202877298U (en) * | 2012-10-24 | 2013-04-17 | 宁波钜智自动化装备有限公司 | Computerized numerical control pipe bending machine |
| CN205599725U (en) * | 2016-05-04 | 2016-09-28 | 重庆港乾机械有限公司 | Gasbag formula bearing structure for double tube buckles |
| CN108582196A (en) * | 2018-05-17 | 2018-09-28 | 宁波恒元精工管阀科技有限公司 | A kind of pipeline girdling machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458209A (en) * | 2021-07-05 | 2021-10-01 | 广州高谱机械科技有限公司 | Variable curvature bending method capable of improving stability of section bar |
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