CN114054556A - Three-dimensional pipe bending machine for heat exchange pipe - Google Patents
Three-dimensional pipe bending machine for heat exchange pipe Download PDFInfo
- Publication number
- CN114054556A CN114054556A CN202111353397.9A CN202111353397A CN114054556A CN 114054556 A CN114054556 A CN 114054556A CN 202111353397 A CN202111353397 A CN 202111353397A CN 114054556 A CN114054556 A CN 114054556A
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- China
- Prior art keywords
- sleeve
- heat exchange
- fixedly connected
- dimensional
- support plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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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
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
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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
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/06—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the field of heat exchange tube production, in particular to a three-dimensional tube bending machine for heat exchange tubes, which comprises a bottom support plate, wherein a working panel is fixed above the bottom support plate, a moving frame is arranged on the working panel in a sliding manner, a rotating shaft is arranged on the moving frame in a rotating manner, a slow motor is arranged on one side of the moving frame, one end of the rotating shaft is fixedly connected to an output shaft of the slow motor, and the other end of the rotating shaft is fixedly connected with a sleeve. According to the invention, one end of the heat exchange tube can be clamped in the sleeve through the clamping component, the sleeve can drive the heat exchange tube to horizontally move through the driving component, and meanwhile, the heat exchange tube in the sleeve is controlled to rotate through controlling the slow-speed motor, so that the heat exchange tube can be bent at any position and in any direction without manually supporting one end of the heat exchange tube to rotate and push, manpower is saved, and the operation safety is improved.
Description
Technical Field
The invention relates to the field of heat exchange tube production, in particular to a three-dimensional tube bender of a heat exchange tube.
Background
The heat exchange tube is one of important elements in the heat exchanger, is usually arranged in a cylinder body, has high heat conduction performance, and is usually required to be bent by a three-dimensional tube bending machine in the production process of the heat exchange tube.
Three-dimensional bending machine a great variety, wherein the equipment cost of full-automatic numerical control three-dimensional bending machine is higher, and general middle-size and small-size enterprise is difficult to purchase the use, still uses manual three-dimensional bending machine in middle-size and small-size enterprise usually, however this kind of bending machine in the course of working, needs artifical manual one end of holding hot exchange pipe to propelling movement forward and rotate to this adjusts the position of buckling and the direction of buckling, need consume more manpower and have certain potential safety hazard simultaneously.
Disclosure of Invention
Based on the above-mentioned shortcomings in the prior art, the present invention provides a three-dimensional tube bender for heat exchange tubes.
The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:
a three-dimensional pipe bending machine for heat exchange pipes comprises a bottom support plate, wherein a working panel is fixed above the bottom support plate, a moving frame is arranged on the working panel in a sliding mode, a rotating shaft is arranged on the moving frame in a rotating mode, a slow motor is installed on one side of the moving frame, one end of the rotating shaft is fixedly connected to an output shaft of the slow motor, the other end of the rotating shaft is fixedly connected with a sleeve, the sleeve is connected with a side plate of the moving frame in a rotating mode, a first air cylinder is fixed on one side of the bottom support plate, one end of the output shaft of the first air cylinder is provided with a bending pushing wheel in a rotating mode, and a supporting template matched with the bending pushing wheel is further arranged on one side of the bottom support plate;
the telescopic inside is provided with the centre gripping subassembly, remove the frame with be provided with the confession between the work panel remove the gliding direction subassembly of frame, remove the frame with still be provided with between the work panel and be used for controlling the gliding drive assembly of work panel.
Preferably, the method comprises the following steps: the clamping assembly comprises a second cylinder arranged on one side inside the sleeve, an extrusion sleeve arranged inside the sleeve and fixedly connected with one end of an output shaft of the second cylinder, four groups of clamping plates arranged inside the sleeve, a conical end arranged at one end, close to the extrusion sleeve, of each clamping plate, and a smooth round rod arranged on the outer wall of the sleeve in a sliding mode and fixedly connected with the clamping plates;
and an elastic reset assembly is arranged between the sleeve and the light round rod.
Preferably, the method comprises the following steps: the elastic reset assembly comprises a blocking piece fixed at one end of the smooth round rod and a spring sleeved on the surface of the smooth round rod;
one end of the spring is abutted to the blocking piece, and the other end of the spring is abutted to the outer wall of the sleeve.
Preferably, the method comprises the following steps: the inner surface of the clamping plate is of an arc-shaped structure, and anti-skid grains are further arranged on the inner surface of the clamping plate.
Preferably, the method comprises the following steps: the direction subassembly including set up in remove the frame bottom and with work panel fixed connection's litter and slip fit on the litter and with remove frame fixed connection's sliding sleeve.
Preferably, the method comprises the following steps: the driving assembly comprises a screw rod rotatably arranged on the working panel, a threaded sleeve sleeved on the screw rod and fixedly connected with the bottom end of the movable frame, and a servo motor arranged on one side of the working panel;
the inner surface of the threaded sleeve is matched with the outer surface of the screw rod, and the screw rod is fixedly connected with one end of an output shaft of the servo motor.
Preferably, the method comprises the following steps: the lamp post is arranged on the bottom support plate, and an illuminating lamp is installed at one end of the lamp post.
Preferably, the method comprises the following steps: the bottom of the bottom support plate is provided with universal wheels, and the universal wheels are arranged at the bottom of the bottom support plate in four groups.
The invention has the following beneficial effects:
after adopting the structure, compared with the prior art, the invention has the following advantages: can be with the one end centre gripping of hot exchange pipe in telescopic inside through the centre gripping subassembly, can make the sleeve drive hot exchange pipe through drive assembly this moment and carry out horizontal migration, rotate through the hot exchange pipe of controlling the inside of slow motor control sleeve simultaneously, consequently realized no longer needing artifical manual one end of holding hot exchange pipe to rotate and the propelling movement, just can carry out the buckling of optional position and arbitrary direction to hot exchange pipe, saved the manpower and improved the security of operation simultaneously.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention.
FIG. 2 is an enlarged view of the point A of the present invention.
FIG. 3 is a schematic side view of the structure of the present invention.
Fig. 4 is a schematic structural diagram of the driving assembly of the present invention.
Fig. 5 is a schematic structural view of a second cylinder and an extrusion housing in the present invention.
Fig. 6 is a schematic structural view of the clamping plate and the anti-slip pattern in the invention.
Fig. 7 is a cross-sectional view of an extrusion jacket of the present invention.
In the figure: 1. a bottom support plate; 2. a working panel; 3. a movable frame; 4. a rotating shaft; 5. a slow speed motor; 6. a sleeve; 7. a first cylinder; 8. bending the pushing wheel; 9. supporting the template; 10. a second cylinder; 11. extruding a sleeve; 12. a clamping plate; 13. a tapered end; 14. a smooth round bar; 15. a baffle plate; 16. a spring; 17. anti-skid lines; 18. a slide rod; 19. a sliding sleeve; 20. a screw; 21. a threaded sleeve; 22. a servo motor; 23. a lamp post; 24. an illuminating lamp; 25. a universal wheel.
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.
Referring to fig. 1 to 7, in an embodiment of the present invention, a three-dimensional pipe bender for heat exchange pipes includes a bottom support plate 1, a working panel 2 is fixed above the bottom support plate 1, a moving frame 3 is slidably disposed on the working panel 2, a rotating shaft 4 is rotatably disposed on the moving frame 3, a slow motor 5 is mounted on one side of the moving frame 3, one end of the rotating shaft 4 is fixedly connected to an output shaft of the slow motor 5, the other end of the rotating shaft 4 is fixedly connected to a sleeve 6, the sleeve 6 is rotatably connected to a side plate of the moving frame 3, a first cylinder 7 is fixed on one side of the bottom support plate 1, one end of the output shaft of the first cylinder 7 is rotatably disposed with a bending pushing wheel 8, and a support template 9 matched with the bending pushing wheel 8 is further disposed on one side of the bottom support plate 1;
a clamping assembly is arranged inside the sleeve 6, a guide assembly for the sliding of the moving frame 3 is arranged between the moving frame 3 and the working panel 2, and a driving assembly for controlling the sliding of the working panel 2 is also arranged between the moving frame 3 and the working panel 2;
one end of the heat exchange tube is inserted into the sleeve 6, one end of the heat exchange tube can be clamped in the sleeve 6 by controlling the clamping assembly, the other end of the heat exchange tube is attached to the inner surface of the supporting template 9 at the moment, the output shaft of the first air cylinder 7 is controlled to drive the bending pushing wheel 8 to move towards the direction close to the supporting template 9 until the bending pushing wheel 8 is contacted with the heat exchange tube, one side of the heat exchange tube is attached to the inner surface of the supporting template 9 at the moment, the other side of the heat exchange tube is attached to the surface of the bending pushing wheel 8, when the bending pushing wheel 8 continues to move forwards, one side of the heat exchange tube is pushed by the bending pushing wheel 8 to further bend the heat exchange tube, in the process, the moving frame 3 can be driven by the horizontal direction by controlling the driving assembly, at the moment, the moving frame 3 can drive the sleeve 6 to horizontally slide above the working panel 2 along the direction of the guide assembly, the centre gripping is through horizontal migration under the drive at sleeve 6 in the inside hot exchange pipe of sleeve 6, can make the position alignment that needs buckle and push away wheel 8, can drive pivot 4 through control slow motor 5 and rotate in addition, pivot 4 can drive sleeve 6 and rotate, the centre gripping can rotate under sleeve 6's drive in the inside hot exchange pipe of sleeve 6, consequently, can rotate through control hot exchange pipe, and then adjust hot exchange pipe's angle of buckling, realized no longer needing artifical manual one end of holding hot exchange pipe to rotate and the propelling movement, just can carry out arbitrary position and arbitrary direction's the buckling to hot exchange pipe, the manpower has been saved and the security of operation has been improved simultaneously.
In one embodiment of the present invention, the clamping assembly includes a second cylinder 10 installed at one side inside the sleeve 6, a pressing sleeve 11 disposed inside the sleeve 6 and fixedly connected to one end of an output shaft of the second cylinder 10, four sets of clamping plates 12 disposed inside the sleeve 6, a tapered end 13 disposed at one end of the clamping plates 12 close to the pressing sleeve 11, and a smooth round bar 14 slidably disposed on an outer wall of the sleeve 6 and fixedly connected to the clamping plates 12;
an elastic reset component is arranged between the sleeve 6 and the light round rod 14;
because the smooth round rod 14 is slidably disposed on the sleeve 6 and fixedly connected to the clamping plate 12, when the clamping plate 12 is acted by an acting force, the smooth round rod 14 slides in the sleeve 6 in a direction close to or away from the axis of the sleeve 6 under the restriction action of the smooth round rod 14, the output shaft of the second cylinder 10 can drive the extrusion sleeve 11 to move in a direction close to or away from the clamping plate 12, one end of the heat exchange tube is inserted into the middle position of the four groups of clamping plates 12 in the sleeve 6, when the extrusion sleeve 11 is controlled to move in a direction close to the clamping plate 12, the extrusion sleeve 11 contacts with the tapered end 13 at one end of the clamping plate 12, the inner surface of the extrusion sleeve 11 is attached to the outer surface of the tapered end 13, therefore, when the extrusion sleeve 11 moves in a direction close to the clamping plate 12, the extrusion sleeve 11 can simultaneously generate an extrusion acting force close to the axis of the sleeve 6 to the tapered end 13 at one end of the four groups of the clamping plates 12, and then make four groups of grip blocks 12 move towards the direction close to axle center of the bush 6 at the same time, the heat exchanger tube will receive the clamping action of four groups of grip blocks 12, if control the extrusion sleeve 11 to move towards the direction far away from grip block 12 at this moment, the conical end 13 of one end of four groups of grip blocks 12 no longer receives the extrusion effort of the extrusion sleeve 11, the grip block 12 of four groups will move towards the direction far away from axle center of the bush 6 under the influence of the elastic reset assembly at the same time, the heat exchanger tube no longer receives the clamping action of the grip block 12, can take it out from the bush 6 inside.
In another embodiment of the present invention, the elastic restoring component includes a blocking plate 15 fixed at one end of the smooth round rod 14, and a spring 16 sleeved on the surface of the smooth round rod 14;
one end of the spring 16 abuts against the baffle 15, and the other end of the spring 16 abuts against the outer wall of the sleeve 6;
when the clamping plate 12 moves towards the direction close to the axis of the sleeve 6, the smooth round rod 14 can move towards the inner side of the sleeve 6 under the driving action of the sleeve 6, the blocking piece 15 can move towards the direction close to the sleeve 6 under the driving action of the smooth round rod 14, at the moment, the spring 16 is compressed under the stress and generates an elastic action towards the direction away from the sleeve 6 for the blocking piece 15, when the conical end 13 at one end of the clamping plate 12 does not receive the extrusion action force of the extrusion sleeve 11 any more, the blocking piece 15 can drive the smooth round rod 14 to move towards the outer side of the sleeve 6 under the elastic action, and then the clamping plate 12 can move towards the direction away from the axis of the sleeve 6 under the driving action of the smooth round rod 14.
In another embodiment of the present invention, the inner surface of the clamping plate 12 is in an arc structure, and the inner surface of the clamping plate 12 is further provided with anti-skid lines 17;
when the clamping plate 12 clamps the heat exchange tube, the inner surface of the clamping plate 12 with the arc structure is tightly attached to the outer wall of the heat exchange tube, and meanwhile, the anti-skid grains 17 can increase the friction force between the clamping plate 12 and the heat exchange tube, so that the heat exchange tube is prevented from slipping.
In another embodiment of the present invention, the guiding assembly comprises a sliding rod 18 disposed at the bottom end of the movable frame 3 and fixedly connected to the working panel 2, and a sliding sleeve 19 slidably sleeved on the sliding rod 18 and fixedly connected to the movable frame 3;
when the movable frame 3 is driven, the sliding sleeve 19 will slide horizontally on the surface of the slide rod 18 under the driving of the movable frame 3, and at this time, the movable frame 3 will keep sliding horizontally along the direction of the slide rod 18 without deflection under the restriction of the slide rod 18 and the sliding sleeve 19.
In another embodiment of the present invention, the driving assembly includes a screw 20 rotatably disposed on the working panel 2, a threaded sleeve 21 sleeved on the screw 20 and fixedly connected to the bottom end of the movable frame 3, and a servo motor 22 installed at one side of the working panel 2;
the inner surface of the threaded sleeve 21 is matched with the outer surface of the screw rod 20, and the screw rod 20 is fixedly connected with one end of an output shaft of the servo motor 22;
the output shaft of the servo motor 22 can drive the screw 20 to rotate, and due to the matching relationship between the screw sleeve 21 and the screw 20, the screw 20 can generate a horizontal driving action on the screw sleeve 21 while rotating, so that the screw sleeve 21 horizontally moves along the direction of the screw 20, and the moving frame 3 is driven by the horizontal direction.
In another embodiment of the present invention, a lamp post 23 is disposed on the bottom support plate 1, and an illumination lamp 24 is mounted at one end of the lamp post 23;
the illumination lamp 24 can provide illumination for the surrounding working environment, and prevent the ambient light from dimming and influencing the bending operation of the heat exchange tube.
In another embodiment of the invention, the bottom end of the bottom support plate 1 is provided with universal wheels 25, and the universal wheels 25 are arranged at the bottom end of the bottom support plate 1 in four groups;
the universal wheels 25 are in rolling contact with the ground, so that people can push the whole bottom support plate 1 conveniently.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. It is obvious that the invention is not limited to the above-described embodiments, but that many variations are possible. Any simple modification, equivalent change and modification made to the above embodiments in accordance with the technical spirit of the present invention should be considered to be within the scope of the present invention.
Claims (8)
1. A three-dimensional pipe bender of a heat exchange pipe comprises a bottom support plate (1) and is characterized in that a working panel (2) is fixed above the bottom support plate (1), a moving frame (3) is arranged on the working panel (2) in a sliding way, a rotating shaft (4) is arranged on the moving frame (3) in a rotating way, a slow motor (5) is arranged on one side of the moving frame (3), one end of the rotating shaft (4) is fixedly connected to an output shaft of the slow motor (5), the other end of the rotating shaft (4) is fixedly connected with a sleeve (6), the sleeve (6) is rotationally connected with a side plate of the movable frame (3), a first cylinder (7) is fixed on one side of the bottom support plate (1), one end of an output shaft of the first cylinder (7) is rotatably provided with a bending pushing wheel (8), a supporting template (9) matched with the bending pushing wheel (8) is further arranged on one side of the bottom support plate (1);
wherein, the inside of sleeve (6) is provided with the centre gripping subassembly, remove frame (3) with be provided with the confession between work panel (2) remove the gliding direction subassembly of frame (3), remove frame (3) with still be provided with between work panel (2) and be used for control the gliding drive assembly of work panel (2).
2. The three-dimensional tube bender of a heat exchange tube according to claim 1, characterized in that said clamping assembly comprises a second cylinder (10) installed at one side of the interior of said sleeve (6), an extruding sleeve (11) disposed inside said sleeve (6) and fixedly connected to one end of the output shaft of said second cylinder (10), four sets of clamping plates (12) disposed inside said sleeve (6), a tapered end (13) disposed at one end of said clamping plates (12) close to said extruding sleeve (11), and a smooth round bar (14) slidably disposed on the outer wall of said sleeve (6) and fixedly connected to said clamping plates (12);
wherein, an elastic reset component is arranged between the sleeve (6) and the light round rod (14).
3. The three-dimensional tube bender of heat exchange tubes according to claim 2, characterized in that said elastic return assembly comprises a stopper (15) fixed at one end of said smooth round bar (14), and a spring (16) sleeved on the surface of said smooth round bar (14);
one end of the spring (16) is abutted against the blocking piece (15), and the other end of the spring (16) is abutted against the outer wall of the sleeve (6).
4. The three-dimensional tube bender for heat exchange tubes according to claim 2, characterized in that the inner surface of said holding plate (12) is formed in an arc-shaped configuration, and the inner surface of said holding plate (12) is further provided with anti-slip threads (17).
5. The three-dimensional tube bender for heat exchange tubes according to claim 1, characterized in that said guiding assembly comprises a sliding rod (18) disposed at the bottom end of said movable frame (3) and fixedly connected to said working panel (2), and a sliding sleeve (19) slidably fitted over said sliding rod (18) and fixedly connected to said movable frame (3).
6. The three-dimensional tube bender of heat exchange tube according to claim 1, characterized in that said driving assembly comprises a screw (20) rotatably disposed on said working panel (2), a threaded sleeve (21) sleeved on said screw (20) and fixedly connected to the bottom end of said movable frame (3), and a servo motor (22) mounted on one side of said working panel (2);
the inner surface of the threaded sleeve (21) is matched with the outer surface of the screw rod (20), and the screw rod (20) is fixedly connected with one end of an output shaft of the servo motor (22).
7. The three-dimensional tube bender of heat exchange tubes according to claim 1, characterized in that a lamp post (23) is arranged on said bottom support plate (1), and an illumination lamp (24) is installed at one end of said lamp post (23).
8. The three-dimensional bender for heat exchange tubes according to claim 1, characterized in that the bottom end of said bottom plate (1) is provided with universal wheels (25), said universal wheels (25) being mounted in four groups on the bottom end of said bottom plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111353397.9A CN114054556A (en) | 2021-11-16 | 2021-11-16 | Three-dimensional pipe bending machine for heat exchange pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111353397.9A CN114054556A (en) | 2021-11-16 | 2021-11-16 | Three-dimensional pipe bending machine for heat exchange pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114054556A true CN114054556A (en) | 2022-02-18 |
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ID=80272728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111353397.9A Pending CN114054556A (en) | 2021-11-16 | 2021-11-16 | Three-dimensional pipe bending machine for heat exchange pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114054556A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115488195A (en) * | 2022-11-02 | 2022-12-20 | 广州华茂机械模具有限公司 | High-precision three-dimensional manual pipe bender |
| CN115673053A (en) * | 2022-11-01 | 2023-02-03 | 广州华茂机械模具有限公司 | Portable three-dimensional manual pipe bender |
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| CN113290094A (en) * | 2021-05-17 | 2021-08-24 | 福州诺贝尔福基机电有限公司 | Intelligent elbow production system |
| CN113510195A (en) * | 2021-04-13 | 2021-10-19 | 江阴市宏业机械制造有限公司 | High-precision self-centering clamping mechanism for realizing large-opening powerful clamping of pipe bender |
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2021
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| KR20100060936A (en) * | 2008-11-28 | 2010-06-07 | 주식회사 성우하이텍 | Roll forming system and method thereof |
| CN210358671U (en) * | 2019-06-26 | 2020-04-21 | 无锡金沃伺服冲床有限公司 | Clamping device for numerical control bending machine |
| CN111604394A (en) * | 2020-06-01 | 2020-09-01 | 嘉兴金鹏工具有限公司 | Adjustable-curvature hydraulic pipe bender |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115673053A (en) * | 2022-11-01 | 2023-02-03 | 广州华茂机械模具有限公司 | Portable three-dimensional manual pipe bender |
| CN115673053B (en) * | 2022-11-01 | 2023-04-28 | 广州华茂机械模具有限公司 | Portable three-dimensional manual pipe bending machine |
| CN115488195A (en) * | 2022-11-02 | 2022-12-20 | 广州华茂机械模具有限公司 | High-precision three-dimensional manual pipe bender |
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