CN113547006A - Pipe bending equipment for automobile - Google Patents
Pipe bending equipment for automobile Download PDFInfo
- Publication number
- CN113547006A CN113547006A CN202110842756.0A CN202110842756A CN113547006A CN 113547006 A CN113547006 A CN 113547006A CN 202110842756 A CN202110842756 A CN 202110842756A CN 113547006 A CN113547006 A CN 113547006A
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- oil
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- 238000005452 bending Methods 0.000 title claims abstract description 62
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000003860 storage Methods 0.000 claims description 21
- 238000003825 pressing Methods 0.000 claims description 19
- 238000007493 shaping process Methods 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims 5
- 238000001125 extrusion Methods 0.000 abstract description 15
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 74
- 239000010687 lubricating oil Substances 0.000 description 23
- 238000003754 machining Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
-
- 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
- B21D7/16—Auxiliary equipment, e.g. for heating or cooling of bends
- B21D7/167—Greasing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention discloses automobile elbow processing equipment which comprises a workbench, an electric telescopic rod, a bending piece, a notch, a forming device and a feeding mechanism, wherein one end of the electric telescopic rod is hinged with one side of the top of the workbench, one side of the surface of the bending piece is hinged with the working end of the electric telescopic rod, one end of the bending piece is rotatably connected with the top of the workbench, the notch is formed in the top of the bending piece and is positioned at the end part, the forming device is arranged at the top of the workbench and is close to the bending piece, the bending piece is connected with the forming device in a matched mode, and the feeding mechanism is arranged at the top of the workbench and is far away from one side of the forming device. This pipe bending equipment for car has reached the purpose that reduces friction, reducible extrusion force and frictional force when bending, has improved the bending precision, reduces substandard product or rejection rate, is favorable to subsequent use, safe and reliable, has improved performance.
Description
Technical Field
The invention relates to the technical field of pipeline processing, in particular to a bending device for an automobile.
Background
The automobile refers to a transportation vehicle powered by combustible gas and a vehicle provided with a power drive, generally has four or more wheels and runs on the land without depending on a track or a trolley line. With the improvement of living standard of people, automobiles become a tool for riding instead of walk gradually, and the improvement of automobile demand leads to the aggravation of the task of automobile parts in production and manufacturing. In daily production, certain parts are often machined to meet certain functions. In actual production machining, the part machining system cannot meet all types of part machining. In order to process parts with specific functions, corresponding equipment is required to be provided for processing. Many bent pipes are used in automobiles, and the pipes are required to be bent.
At present, the traditional equipment of bending to the pipeline is at the in-process of bending, and the pipe fitting inboard receives the extrusion power to along with the continuous increase of frictional force, cause the bending precision not enough easily, influence subsequent use, cause the substandard product even the waste product is more, reduced performance.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides automobile elbow processing equipment, which solves the problems that the inner side of a pipe is stressed by extrusion force in the bending process of the traditional pipe bending equipment, the bending precision is easy to be insufficient along with the continuous increase of friction force, the subsequent use is influenced, defective products and even waste products are more, and the use performance is reduced.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a return bend processing equipment for car, includes workstation, electric telescopic handle, the piece of bending, breach, forming device, feeding mechanism, electric telescopic handle's one end is articulated with top one side of workstation, the surperficial one side of the piece of bending articulates at electric telescopic handle's work end, rotate between the one end of the piece of bending and the top of workstation and be connected, the breach is seted up at the top of the piece of bending and is located the tip position, forming device sets up at the top of workstation and is close to the position of the piece of bending, the cooperation is connected between the piece of bending and the forming device, feeding mechanism sets up at the top of workstation and keeps away from one side of forming device.
Preferably, an arc surface is arranged on one side, close to the forming device, of the surface of the bending piece, and the feeding mechanism corresponds to the forming device in position.
Preferably, forming device is equipped with shaping base member, cambered surface recess, pressure relief device, oil collecting device, the shaping base member sets up the top at the workstation, the cambered surface recess is seted up on the surface of shaping base member and is close to the top position, pressure relief device sets up in the inside of shaping base member and is close to the position of cambered surface recess, oil collecting device sets up in surface bottom one side of shaping base member, oil collecting device and pressure relief device between the cooperation be connected.
Preferably, the slow pressure device is equipped with oil storage chamber, elasticity utricule, press device, clamp plate, the oil storage chamber sets up the inside at the shaping base member, the position that the oil storage chamber is just close to in the inside of shaping base member to the elasticity utricule setting, press device sets up the inside at the shaping base member and is located the position of cambered surface recess, the clamp plate setting is in the inside of shaping base member and is located the position of elasticity utricule and with press device's one end fixed connection.
Preferably, the inside of shaping base member just is close to the bottom position and is provided with the oil absorption passageway, oil absorption passageway and elasticity utricule intercommunication, the inside of shaping base member just is close to the top position and is equipped with the passageway of producing oil, the passageway of producing oil communicates with the oil storage chamber and the tip sets up the position in cambered surface groove, the end of producing oil and the oil storage chamber intercommunication of elasticity utricule, the end of producing oil and the oil feed end of elasticity utricule are equipped with out oil check valve, oil feed check valve respectively.
Preferably, the pressing device is provided with a connecting slide rod, an elastic reset piece and a pressing ball, the connecting slide rod is connected in the forming base body in a sliding mode, two ends of the elastic reset piece are respectively arranged between two sides, corresponding to the surfaces of the connecting slide rod, of the forming base body, and the pressing ball is arranged at the end portion of the connecting slide rod and located in the cambered surface groove.
Preferably, the oil collecting device is provided with an arc-shaped strip, an oil collecting groove and an oil hole, the surface of the arc-shaped strip is fixedly connected with one side of the bottom of the surface of the forming base body, the oil collecting groove is formed in the top of the arc-shaped strip, and the oil hole is formed in the arc-shaped strip and located at the position of the oil collecting groove.
(III) advantageous effects
The invention provides a pipe bending device for an automobile. The method has the following beneficial effects:
(I), this elbow machining equipment for car, through workstation, electric telescopic handle, the piece of bending, breach, forming device, feeding mechanism, when bending to the pipeline for the car, the effect of timely buffering has reduced the product pressure when bending to through reducing area of contact and lubricated combined action, reduced frictional force, and then improved bending accuracy, the product percent of pass is high, helps subsequent use.
(II), this return bend processing equipment for car, through the shaping base member, cambered surface recess, pressure relief device, oil collecting device, utilize the area of contact of cambered surface recess increase with the pipeline to the pressure relief device in time alleviates the extrusion force to the pipeline, reduces the influence that receives long-pending pressure, helps improving the precision of bending, and lubricating oil is extruded the back simultaneously, lubricates the pipeline, reduces frictional force, promotes to improve the precision of bending, and oil collecting device can in time collect the lubricating oil of extruding, reduces the waste of lubricating oil.
(III), this elbow machining equipment for car, through oil storage chamber, elasticity utricule, press device, clamp plate, utilize the overstock force that press device received, and then can press the elasticity utricule, the oil storage intracavity is arranged to inside gas this moment, and oil storage intracavity internal pressure increases extrudes lubricating oil through the passageway that produces oil, and then in time lubricates, and frictional force when reducing the extrusion helps improving the precision of bending, and the pipeline is difficult for impairedly simultaneously.
(IV), this elbow machining equipment for car through connecting slide bar, elasticity piece, pressure ball that resets, when bending the pipeline, the pressure ball can reduce with pipeline surface contact, has further reduced frictional force, can apply the extrusion force on connecting the slide bar simultaneously, and elasticity piece that resets provides elasticity this moment, can in time alleviate the pipeline inboard and received the extrusion force, and then help the precision of bending of pipeline.
(five), this elbow machining equipment for car, through press device, the arc strip, the oil trap, the oilhole, after the elasticity utricule exhausts and discharges lubricating oil to the pipeline lubrication, the lubricating oil flows in the oil trap this moment, and then in time collects the lubricating oil that the overflow got off, and when no extrusion force, press device automatic re-setting under the spring action, elasticity utricule volume grow this moment, utilize oil absorption passageway and oilhole intercommunication, in time absorb the lubricating oil of collecting in the oil trap, so under the reciprocating cycle, to lubricating oil reuse, reduce the extravagant condition of appearance, and whole device links together, no isolated structure exists, safety and reliability, service performance has been improved.
Drawings
FIG. 1 is a schematic view of the overall structure of an automotive pipe bending apparatus according to the present invention;
FIG. 2 is a schematic view of the overall structure of a molding device of the automotive pipe bending apparatus according to the present invention;
FIG. 3 is a schematic structural view of a pressure relief device of the automotive pipe bending apparatus according to the present invention;
FIG. 4 is a schematic structural view of a pressing device of the automotive pipe bending apparatus according to the present invention;
FIG. 5 is a schematic view of an oil collecting device of the pipe bending apparatus for an automobile according to the present invention.
In the figure: 1 workbench, 2 ceilings, 3 bending pieces, 4 gaps, 5 forming devices, 6 feeding mechanisms, 51 forming base bodies, 52 cambered grooves, 53 pressure-relieving devices, 54 oil collecting devices, 531 oil storage cavities, 532 elastic bag bodies, 533 pressing devices, 534 pressing plates, 501 oil suction channels, 502 oil outlet channels, 503 oil outlet one-way valves, 504 oil inlet one-way valves, 5331 connecting sliding rods, 5332 elastic reset pieces, 5333 pressing balls, 541 cambered strips, 542 oil collecting tanks and 543 oil holes.
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.
The first embodiment is as follows:
referring to fig. 1-5, the present invention provides a technical solution: a bending device for an automobile comprises a workbench 1, an electric telescopic rod 2, a bent piece 3, a notch 4, a forming device 5 and a feeding mechanism 6, wherein one end of the electric telescopic rod 2 is hinged with one side of the top of the workbench 1, one side of the surface of the bent piece 3 is hinged with the working end of the electric telescopic rod 2, one end of the bent piece 3 is rotatably connected with the top of the workbench 1, the notch 4 is arranged at the top of the bent piece 3 and is positioned at the end part, the forming device 5 is arranged at the top of the workbench 1 and is close to the bent piece 3, the bent piece 3 is connected with the forming device 5 in a matching way, the feeding mechanism 6 is arranged at the top of the workbench 1 and is far away from one side of the forming device 5, when the automobile pipeline is bent, the effect of timely buffering is realized, the pressure during bending is reduced, and the combined effect of reducing the contact area and lubricating is realized, the friction force is reduced, and further, the bending precision is improved, the product yield is high, and the subsequent use is facilitated.
The forming device 5 is provided with a forming base 51, an arc groove 52, a pressure relief device 53 and an oil collecting device 54, the forming base 51 is arranged at the top of the workbench 1, the arc groove 52 is arranged on the surface of the forming base 51 and is close to the top, the pressure relief device 53 is arranged in the forming base 51 and is close to the arc groove 52, the oil collecting device 54 is arranged on one side of the bottom of the surface of the forming base 51, the oil collecting device 54 is connected with the pressure relief device 53 in a matching manner, the contact area between the oil collecting device 54 and the pipeline is increased by the arc groove 52, the pressure relief device 53 relieves the extrusion force of the pipeline in time, reduces the influence of accumulated pressure, is beneficial to improving the bending precision, and simultaneously after the lubricating oil is extruded, the pipeline is lubricated, the friction force is reduced, the bending precision is improved, the oil collecting device 54 can collect the extruded lubricating oil in time, and the waste of the lubricating oil is reduced.
The pressing device 533 is provided with a connecting slide rod 5331, an elastic resetting piece 5332 and a pressing ball 5333, the connecting slide rod 5331 is slidably connected inside the molding base 51, two ends of the elastic resetting piece 5332 are respectively arranged between two sides of the molding base 51 corresponding to the surface of the connecting slide rod 5331, the pressing ball 5333 is arranged at the end of the connecting slide rod 5331 and located at the position of the arc groove 52, when the pipeline is bent, the pressing ball 5333 can reduce contact with the surface of the pipeline and further reduce friction force, meanwhile, pressing force can be applied to the connecting slide rod 5331, the elastic resetting piece 5332 is an annular elastic rod, at the moment, the elastic resetting piece 5332 provides elastic force, the pressing force applied to the inner side of the pipeline can be timely relieved, and the bending precision of the pipeline is further facilitated.
The second embodiment:
the oil collecting device 54 is provided with an arc-shaped strip 541, an oil collecting groove 542 and an oil hole 543, the surface of the arc-shaped strip 541 is fixedly connected with one side of the bottom of the surface of the forming base body 51, the oil collecting groove 542 is arranged at the top of the arc-shaped strip 541, the oil hole 543 is arranged inside the arc-shaped strip 541 and is located at the position of the oil collecting groove 542, and when the elastic bag body 532 exhausts to discharge lubricating oil to lubricate the pipeline, the lubricating oil flows into the oil collecting groove 542 at the moment and is collected in time.
The third embodiment is as follows:
through setting up arc 541, oil trap 542, oilhole 543, oil absorption passageway 501, the passageway 502 that produces oil, the check valve 503 that produces oil, oil feed check valve 504, when not having the extrusion force, press device 533 automatic re-setting under the elastic force effect, the elasticity utricule 532 volume grow this moment utilizes oil absorption passageway 501 and oilhole 543 intercommunication, in time absorbs the lubricating oil of collecting in the oil trap 542, so reciprocating cycle is gone down, to the repeated recycle of lubricating oil, the extravagant condition of reduction appearance.
When the device is used, the whole device is placed at a designated position firstly, the device can be used, the feeding mechanism 6 is used for conveying the pipe fitting, the bent part 3 is driven by the pushing of the electric telescopic rod 2, the pipe fitting is bent by the matching between the bent part 3 and the forming device 5, the contact area with the pipeline is increased by the cambered groove 52, the pressure relief device 53 relieves the extrusion force on the pipeline in time and reduces the influence of accumulated pressure, the accumulated pressure on the pressing device 533 is utilized to press the elastic bag body 532, the internal gas is discharged into the oil storage cavity at the moment, the internal pressure of the oil storage cavity 531 is increased, the lubricating oil is extruded out through the oil outlet channel 502 to lubricate in time and reduce the friction force during extrusion, and meanwhile, when the pipeline is bent, the pressing ball 5333 can reduce the contact with the surface of the pipeline and further reduce the friction force, meanwhile, extrusion force can be applied to the connecting sliding rod 5331, the elastic resetting piece 5332 provides elastic force at the moment, the inner side of the pipeline can be timely relieved and the extrusion force is received, so that the bending precision of the pipeline is facilitated, after the elastic bag body 532 exhausts to discharge lubricating oil to lubricate the pipeline, the lubricating oil flows into the oil collecting groove 542 at the moment, the overflowing lubricating oil is timely collected, when no extrusion force exists, the pressing device 533 automatically resets under the action of the elastic force, the size of the elastic bag body 532 is increased at the moment, the oil suction channel 501 is communicated with the oil hole 543, the lubricating oil collected in the oil collecting groove 542 is timely absorbed, the reciprocating circulation is carried out, the lubricating oil is repeatedly recycled, and the waste is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a pipe bending equipment for car, includes workstation (1), electric telescopic handle (2), bends (3), breach (4), forming device (5), feeding mechanism (6), its characterized in that: the one end of electric telescopic handle (2) is articulated with top one side of workstation (1), the surface one side of bending piece (3) articulates the work end in electric telescopic handle (2), the one end of bending piece (3) is rotated between the top of workstation (1) and is connected, breach (4) are seted up at the top of bending piece (3) and are located the tip position, forming device (5) set up at the top of workstation (1) and are close to the position of bending piece (3), the cooperation is connected between bending piece (3) and forming device (5), feeding mechanism (6) set up at the top of workstation (1) and keep away from one side of forming device (5).
2. The pipe bending apparatus for automobile according to claim 1, wherein: the surface of the bending piece (3) and one side close to the forming device (5) are provided with arc surfaces, and the feeding mechanism (6) corresponds to the forming device (5) in position.
3. The pipe bending apparatus for automobile according to claim 1, wherein: forming device (5) are equipped with forming substrate (51), cambered surface recess (52), slow pressure device (53), collect oil device (54), forming substrate (51) set up the top at workstation (1), the surface of forming substrate (51) is seted up in cambered surface recess (52) and is close to the top position, slow pressure device (53) set up the inside of forming substrate (51) and be close to the position of cambered surface recess (52), collect oil device (54) set up in surface bottom one side of forming substrate (51), collect oil device (54) and slowly press the cooperation between device (53) to be connected.
4. The pipe bending apparatus for automobile according to claim 3, wherein: pressure relief device (53) are equipped with oil storage chamber (531), elasticity utricule (532), press device (533), clamp plate (534), oil storage chamber (531) set up the inside at forming base body (51), elasticity utricule (532) set up the inside at forming base body (51) and are close to the position of oil storage chamber (531), press device (533) set up the inside at forming base body (51) and are located the position of cambered surface recess (52), clamp plate (534) set up in forming base body (51) the inside and be located the position of elasticity utricule (532) and with the one end fixed connection of press device (533).
5. The pipe bending apparatus for automobile according to claim 3, wherein: the inside of shaping base member (51) just is close to the bottom position and is provided with oil absorption passageway (501), oil absorption passageway (501) and elasticity utricule (532) intercommunication, the inside of shaping base member (51) just is close to the top position and is equipped with out oil passageway (502), it communicates and the tip sets up the position in cambered surface recess (52) to go out oil passageway (502) and oil storage chamber (531), the end of producing oil and oil storage chamber (531) intercommunication of elasticity utricule (532), the end of producing oil and the oil feed end of elasticity utricule (532) are equipped with respectively and produce oil check valve (503), oil feed check valve (504).
6. The pipe bending apparatus for automobile according to claim 4, wherein: the pressing device (533) is provided with a connecting sliding rod (5331), an elastic reset piece (5332) and a pressing ball (5333), the connecting sliding rod (5331) is connected to the inside of the forming base body (51) in a sliding mode, two ends of the elastic reset piece (5332) are arranged between the inside of the forming base body (51) and two sides corresponding to the surface of the connecting sliding rod (5331) respectively, and the pressing ball (5333) is arranged at the end portion of the connecting sliding rod (5331) and located at the position of the cambered surface groove (52).
7. The pipe bending apparatus for automobile according to claim 3, wherein: the oil collecting device (54) is provided with an arc strip (541), an oil collecting groove (542) and an oil hole (543), the surface of the arc strip (541) is fixedly connected with one side of the bottom of the surface of the forming base body (51), the top of the arc strip (541) is arranged at the oil collecting groove (542), and the position of the oil hole (543) is arranged in the arc strip (541) and located in the oil collecting groove (542).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110842756.0A CN113547006A (en) | 2021-07-26 | 2021-07-26 | Pipe bending equipment for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110842756.0A CN113547006A (en) | 2021-07-26 | 2021-07-26 | Pipe bending equipment for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113547006A true CN113547006A (en) | 2021-10-26 |
Family
ID=78104340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110842756.0A Pending CN113547006A (en) | 2021-07-26 | 2021-07-26 | Pipe bending equipment for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113547006A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06182454A (en) * | 1992-12-17 | 1994-07-05 | Mazda Motor Corp | Bending device for metallic member |
| CN200970609Y (en) * | 2006-11-13 | 2007-11-07 | 赵通生 | Hydraulic pipe bender |
| EP2353743A1 (en) * | 2010-01-15 | 2011-08-10 | Armenio Scattolon | Tool for bending metal sheets |
| CN108856389A (en) * | 2018-07-17 | 2018-11-23 | 重庆祥越管道配件制造有限公司 | Pipe fitting bends antifriction equipment |
| CN108856387A (en) * | 2018-07-18 | 2018-11-23 | 重庆祥越管道配件制造有限公司 | Pipe fitting bending fixture |
| CN110918719A (en) * | 2019-11-28 | 2020-03-27 | 贵州凤安铝业科技有限公司 | Production device and method of aluminum bathroom product |
| CN211938528U (en) * | 2020-03-05 | 2020-11-17 | 邵元伟 | Bending machine for geotechnical engineering |
| CN212821915U (en) * | 2020-06-15 | 2021-03-30 | 昆山鸿讯德精密组件有限公司 | V-shaped part structure of metal bending die |
-
2021
- 2021-07-26 CN CN202110842756.0A patent/CN113547006A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06182454A (en) * | 1992-12-17 | 1994-07-05 | Mazda Motor Corp | Bending device for metallic member |
| CN200970609Y (en) * | 2006-11-13 | 2007-11-07 | 赵通生 | Hydraulic pipe bender |
| EP2353743A1 (en) * | 2010-01-15 | 2011-08-10 | Armenio Scattolon | Tool for bending metal sheets |
| CN108856389A (en) * | 2018-07-17 | 2018-11-23 | 重庆祥越管道配件制造有限公司 | Pipe fitting bends antifriction equipment |
| CN108856387A (en) * | 2018-07-18 | 2018-11-23 | 重庆祥越管道配件制造有限公司 | Pipe fitting bending fixture |
| CN110918719A (en) * | 2019-11-28 | 2020-03-27 | 贵州凤安铝业科技有限公司 | Production device and method of aluminum bathroom product |
| CN211938528U (en) * | 2020-03-05 | 2020-11-17 | 邵元伟 | Bending machine for geotechnical engineering |
| CN212821915U (en) * | 2020-06-15 | 2021-03-30 | 昆山鸿讯德精密组件有限公司 | V-shaped part structure of metal bending die |
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Application publication date: 20211026 |
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| RJ01 | Rejection of invention patent application after publication |