CN106238527A - A kind of multi-radian bending machine - Google Patents
A kind of multi-radian bending machine Download PDFInfo
- Publication number
- CN106238527A CN106238527A CN201610767770.8A CN201610767770A CN106238527A CN 106238527 A CN106238527 A CN 106238527A CN 201610767770 A CN201610767770 A CN 201610767770A CN 106238527 A CN106238527 A CN 106238527A
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- China
- Prior art keywords
- processed
- pipe fitting
- processing assembly
- expansion link
- processing
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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
- B21D7/12—Bending rods, profiles, or tubes with programme control
-
- 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
- B21D7/08—Bending rods, profiles, or tubes by passing between rollers or through a curved die
-
- 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
- B21D7/14—Bending rods, profiles, or tubes combined with measuring of bends or lengths
Abstract
nullThe invention discloses a kind of radian pipe bender，Aim to provide a kind of radian pipe bender that can simultaneously process multiple angle，Its drip irrigation device is，Including base and the processing unit (plant) that is arranged on base，Described processing unit (plant) includes being curved pipe fitting to be processed and forms the first processing assembly of the first state and some groups of the second processing assemblies that pipe fitting to be processed under the first state carries out extruding plastotype，The second described processing assembly includes expansion link and the pressure roller being rotatably connected on expansion link，The second described processing assembly parallel arrangement and be oppositely arranged on pipe fitting both sides to be processed，In real time detection expansion link position or the detection device of pressure roller position and control expansion link reciprocating control device in the second processing assembly by detection device it is additionally provided with on described base，Described detection device obtains pipe fitting case of bending to be processed by the some groups of expansion link positions being oppositely arranged or pressure roller position.
Description
Technical field
The present invention relates to a kind of multi-radian bending machine.
Background technology
Bending machine substantially can be divided into CNC tube bending machine, hydraulic pipe bender etc., is mainly used in power construction, and rail-road road is built
If, boiler, bridge, boats and ships, furniture, the pipe fitting processing of the aspects such as decoration, instrument, there is rational in infrastructure, simple operation and other advantages.
But existing bending machine is commonly single apparatus for bending, once can be only done the bending of single radian, it is impossible to complete many simultaneously
Individual bending, and owing to multiple bending angles influence each other, it is difficult to ensure machining accuracy.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of multi-radian bending machine that can simultaneously process multiple angle.
The technical solution of the present invention is to provide a kind of multi-radian bending machine with following structure, including base with
And the processing unit (plant) being arranged on base, described processing unit (plant) includes pipe fitting to be processed is curved formation the first state
Pipe fitting to be processed under first state is carried out extruding the second processing assembly of plastotype by the first processing assembly and some groups, described
Second processing assembly includes expansion link and the pressure roller being rotatably connected on expansion link, the second described processing assembly parallel arrangement
And it is oppositely arranged on pipe fitting both sides to be processed, described base is additionally provided with detection expansion link position or the inspection of pressure roller position in real time
Survey device and control expansion link reciprocating control device in the second processing assembly, described detection device by detection device
Pipe fitting case of bending to be processed is obtained by the some groups of expansion link positions being oppositely arranged or pressure roller position.
Preferably, described detection device obtains this position pipe fitting to be processed by two the pressure roller positions being oppositely arranged
Compressive state.
Preferably, also including the stopping means being connected on the second processing assembly, described stopping means includes fixing stretching
The clamping element of contracting bar position and be connected on pressure roller make certain area inner press roll treat in keeping being relatively fixed to stablize this region
The clamping suspension module of processing pipe fitting case of bending.
Preferably, described clamping suspension module includes the contractibility being connected between adjacent pressure roller, described contractibility
Connect and have the actuator making contractibility keep certain length.
Preferably, described processing unit (plant) also includes that the pipe fitting to be processed being bent to form the first state is transported to second adds
Transfer assembly at work assembly, described stopping means also include by extruding plastotype after pipe fitting to be processed and the second processing assembly
The clamp assemblies separated.
Preferably, described clamp assemblies includes the upper die and lower die revising pipe shape to be processed.
After using above structure, a kind of multi-radian bending machine of the present invention, compared with prior art, have the advantage that
Carry out initial processing form the first state by the first processing assembly processing, due to without the concern for machining accuracy, can quick shape
Becoming the first state, pipe fitting to be processed under the first state is carried out extruding plastotype, the second described processing assembly by the second processing assembly
Including expansion link and the pressure roller that is rotatably connected on expansion link, accurately control nip roll orientation by expansion link is flexible, and described
The second processing assembly parallel arrangement and be oppositely arranged on pipe fitting both sides to be processed, accurately can regulate to be processed by both sides stress
The shape of pipe fitting, and pressure roller is for being rotatably connected on expansion link, i.e. can be rotated by pressure roller and reduce due to pipe fitting position to be processed
Move the scuffing produced, by detection expansion link position or the detection device of pressure roller position, can detect in real time and bend now journey
Distance between degree and expectation degree of crook, then adjust in time by controlling expansion link, and can be revised by monitoring in real time
Owing to bending simultaneously causes the error that pipe fitting Displacement-deformation to be processed brings, and owing to multi-angle adds on pipe fitting to be processed in man-hour each
The direction of motion of individual sweep is different and likely can change back and forth, by the second processing assembly parallel arrangement and relatively sets
Put in pipe fitting both sides to be processed, and monitoring in real time adjusts both sides the second processing assembly and runs dynamics and position, can process simultaneously
Multiple angles and ensure high-precision processing.
The another kind of technical solution that the present invention provides is that the control method of a kind of multi-radian bending machine, including following
Step:
S1, control device and preset formation of tubes state, obtain the first processing group in processing unit (plant) by formation of tubes state
Operational factor X of part and operational factor Y of the second processing assembly；
S2, control device control the first processing assembly operation according to operational factor X and pipe fitting to be processed are bent to form first
State；
S3, detection device detect pipe fitting degree of crook to be processed in real time, control device according to operational factor Y and detection dress
Put real-time testing result control second processing assembly run pipe fitting to be processed is bent to form end-state.
Preferably, described step S3 is further comprising the steps of, controls device and arranges the second processing assembly operation to running
First threshold before parameter Y, controls device record the second processing assembly and runs the time T to first threshold, each by contrast
Organize running time T amendment operational factor X of the second processing assembly so that the extreme difference between running time T is less than preset value.
Preferably, described step S3 is further comprising the steps of, when running between extreme difference between T will less than during preset value
Control device amendment first threshold to draw close to operational factor Y.
After using above method, the control method of the multi-radian bending machine of the present invention, compared with prior art, have following
Advantage: obtained operational factor X and the operation ginseng of the second processing assembly of the first processing assembly by default formation of tubes state
Number Y, described operational factor Y can be the deviant of the certain numerical value of operational factor X, owing to disposably will according to operational factor X
Pipe fitting to be processed is bent to form the first state, it is not necessary to detect in real time, and efficiency is high, and does not require that precise shapes can reduce processing
Equipment precision requirement, it is simple to realize the rapid processing under large force degree, due to pipe fitting to be processed molded one-tenth the first state, significantly
Decrease the processing distance of the second processing assembly, cause pipe fitting Displacement-deformation to be processed to bring owing to bending multiple angle simultaneously
Bigger error, and to add the direction of motion of each sweep on pipe fitting to be processed in man-hour different and likely due to multi-angle
Can change back and forth, detect pipe fitting degree of crook to be processed in real time by detection device, present degree of crook can be detected in real time
With the error of expectation degree of crook, then adjust in time by controlling expansion link, and can be by the second processing by real time monitoring
Member parallel is arranged and is oppositely arranged on pipe fitting both sides to be processed, and monitoring in real time adjusts both sides the second processing assembly and runs dynamics
With position, multiple degree can be processed simultaneously and ensure high-precision processing.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first processing assembly of the multi-radian bending machine of the present invention.
Fig. 2 is the structural representation of the second processing assembly of the multi-radian bending machine of the present invention.
Fig. 3 is the structural representation of the multi-radian bending machine of the present invention.
Shown in figure: 1, base；2, processing unit (plant)；21, the first processing assembly；22, the second processing assembly；221, flexible
Bar；222, pressure roller；3, detection device；4, stopping means；41, clamping element；42, contractibility.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Refer to shown in Fig. 1, Fig. 2 and Fig. 3, the present invention multi-radian bending machine, including base 1 and be arranged on base
Processing unit (plant) 2 on 1, described processing unit (plant) 2 includes pipe fitting to be processed is curved the first processing forming the first state
Pipe fitting to be processed under first state is carried out extruding the second processing assembly 22 of plastotype, described second by assembly 21 and some groups
Processing assembly 22 includes expansion link 221 and the pressure roller 222 being rotatably connected on expansion link 221, the second described processing assembly
22 parallel arrangements and be oppositely arranged on pipe fitting both sides to be processed, described base 1 is additionally provided with detection expansion link 221 position in real time
Or the detection device 3 of pressure roller 222 position and by detection device 3 control the second processing assembly 22 in expansion link 221 back and forth transport
Dynamic control device, described detection device 3 is obtained by the some groups of expansion link being oppositely arranged 221 positions or pressure roller 222 position
Pipe fitting case of bending to be processed, carries out initial processing by the first processing assembly 21 processing and forms the first state, owing to need not
Considering machining accuracy, can quickly form the first state, pipe fitting to be processed under the first state is extruded by the second processing assembly 22
Plastotype, the second described processing assembly 22 includes expansion link 221 and the pressure roller 222 being rotatably connected on expansion link 221, passes through
The flexible nip roll orientation that accurately controls of expansion link 221, and the second described processing assembly 22 parallel arrangement and be oppositely arranged on to be added
Work pipe fitting both sides, can accurately be regulated the shape of pipe fitting to be processed, and pressure roller 222 is for being rotatably connected on expansion link by both sides stress
On 221, i.e. can be rotated by pressure roller 222 and reduce the scuffing produced due to pipe fitting displacement to be processed, by detection expansion link 221
Position or the detection device 3 of pressure roller 222 position, can detect between present degree of crook and expectation degree of crook in real time
Distance, then adjust in time by controlling expansion link 221, and can be revised owing to bending causes to be processed simultaneously by monitoring in real time
The error that pipe fitting Displacement-deformation brings, and owing to multi-angle adds on pipe fitting to be processed in man-hour the direction of motion of each sweep not
Equally and likely can change back and forth, by the second processing assembly 22 parallel arrangement and be oppositely arranged on pipe fitting both sides to be processed,
And monitoring in real time adjusts both sides the second processing assembly 22 and runs dynamics and position, multiple angle can be processed simultaneously and ensure high-precision
The processing of degree, described detection device 3 obtains this position pipe fitting to be processed by two pressure roller 222 positions being oppositely arranged
Compressive state, reduces the damage to pipe fitting to be processed.
Fix expansion link 221 by clamping element 41 and can accurately limit expansion link 221 position, it is to avoid expansion link 221 is due to same
Time bend the error that pipe fitting to be processed causes expansion link 221 Displacement-deformation to bring so that it is overbending or bending will not occur
Not in place, clamping suspension module makes to keep the pipe fitting to be processed in certain area to be relatively fixed and to be processed by this region
The holding state flexible, machinable in pipe fitting and remaining region, i.e. can ensure that be worked into a certain degree of bending part will not
Because remaining bending part deforms compared with the impact of large deformation, it it is to be worked into predeterminated position soon or to the bending of predeterminated position
Place, i.e. can be balanced the processing progress of multiple bending parts, and owing to ensure that being relatively fixed of bending part can be significantly
Accelerate the working (machining) efficiency of remaining bending part, it is ensured that pipe fitting to be processed can accurately rapid processing, i.e. can be to predeterminated position simultaneously
Process multiple angle and ensure high-precision processing, additionally avoiding causing manufactured bending part owing to bending part influences each other
Deformation, it is to avoid detection device is repeatedly detected error and is modified for more than 3 time, substantially increases work efficiency, adds by second
Work assembly 22 parallel arrangement and be oppositely arranged on pipe fitting both sides to be processed and stopping means 4 can process simultaneously multiple angle and
Ensure that high-precision processing, described clamping suspension module include the contractibility 42 being connected between adjacent pressure roller 222, described
Contractibility 42 connects the actuator making contractibility 42 keep certain length, realizes locating part and base-separation by contractibility 42
With being relatively fixed of locating part, it is achieved pipe to be processed in keeping being relatively fixed to stablize this region by the locating part in certain area
Part case of bending, Stability Analysis of Structures, and the accurate control of multiple bending part can be realized with independent assortment.
Described processing unit (plant) 2 also includes the pipe fitting to be processed being bent to form the first state is transported to the second processing assembly
Transfer assembly at 22, described stopping means 4 also include by extruding plastotype after pipe fitting to be processed and the second processing assembly 22
The clamp assemblies separated, can the most just be bent to form the pipe fitting to be processed of the first state by transfer assembly and be transported to second and add
At work assembly 22, transfer assembly can be that the holder at fixing pipe fitting two ends to be processed can also be for realizing the logical of transmission by gravity
Road, clamp assemblies realizes blanking function, is arranged on by clamp assemblies on stopping means 4, and decreases equipment volume, and improves
Operational efficiency.Described clamp assemblies includes the upper die and lower die revising pipe shape to be processed, is closed up by upper die and lower die
Cooperation can be revised a certain degree of error and can realize the function of detection, and whether the pipe fitting to be processed after checking processing meets
Required precision.
The another kind of technical solution that the present invention provides is, the control method of a kind of bending machine comprises the following steps:
S1, control device and preset formation of tubes state, obtain the first processing group in processing unit (plant) 2 by formation of tubes state
Operational factor X of part 21 and operational factor Y of the second processing assembly 22；
S2, control device and control the first processing assembly 21 according to operational factor X and run pipe fitting to be processed is bent to form the
One state；
S3, detection device 3 detect pipe fitting degree of crook to be processed in real time, control device according to operational factor Y and detection
The real-time testing result of device 3 controls the second processing assembly 22 and runs pipe fitting to be processed is bent to form end-state.
Operational factor X of the first processing assembly 21 and the second processing assembly 22 is obtained by default formation of tubes state
Operational factor Y, described operational factor Y can be the deviant of the certain numerical value of operational factor X, due to according to operational factor X mono-
Pipe fitting to be processed is bent to form the first state by secondary property, it is not necessary to detect in real time, and efficiency is high, and does not require that precise shapes can drop
Low process equipment required precision, it is simple to realize the rapid processing under large force degree, due to pipe fitting to be processed molded one-tenth the first shape
State, greatly reduces the processing distance of the second processing assembly 22, causes pipe fitting displacement to be processed owing to bending multiple angle simultaneously
The bigger error that deformation can bring, and differ owing to multi-angle adds the direction of motion of each sweep on pipe fitting to be processed in man-hour
Sample and likely changing back and forth, detects pipe fitting degree of crook to be processed in real time by detection device 3, can detect appearance in real time
In the error of degree of crook with expectation degree of crook, then adjust in time by controlling expansion link 221, and permissible by monitoring in real time
By the second processing assembly 22 parallel arrangement and be oppositely arranged on pipe fitting both sides to be processed, and monitoring in real time adjusts both sides second and adds
Work assembly 22 runs dynamics and position, can process multiple angle simultaneously and ensure high-precision processing.
Described step S3 is further comprising the steps of, and control device arranges the second processing assembly 22 and runs to operational factor Y
Before first threshold, control device record the second processing assembly 22 and run the time T to first threshold, by contrast each group the
Running time T amendment operational factor X of two processing assemblies 22, so that the extreme difference between running time T is less than preset value, works as operation
Control device amendment first threshold is drawn close to operational factor Y by the extreme difference between time T less than during preset value, controls device and arranges
The first threshold that second processing assembly 22 runs to operational factor Y refers to that each second processing assembly 22 runs to a certain degree
Threshold value, such as each second processing assembly 22 all runs the position to 80%, owing to each second processing assembly 22 is by inspection
Surveying device 3 to detect and control device and adjust in real time, i.e. in the course of processing, the second processing assembly 22 is dynamically change, and by
Processing in the multiple angle of pipe fitting to be processed, each bending part can influence each other simultaneously, and due to the fortune of different size of bending part
Row distance has large effect, make tubing in the course of processing always the second processing assembly 22 all persistently adjusting, check dress
Put and control device and there is bigger load, and owing to the range ability of different size of bending part has large effect, for
The impact on less bending angle of the bending angle of minimizing larger angle, the fortune of the folding corner of a certain degree of reduction larger angle of meeting
Line speed, to facilitate the accurate control at less bending angle, causes the process velocity greatly reducing entirety, by under first threshold
Running time T can accurately reflect the process velocity of each the second processing assembly 22, fortune is increased or decreased by running time T
Numerical value corresponding in line parameter X, to balance the operation time of each the second processing assembly 22, can be substantially reduced the second processing
Assembly 22 runs the time to first threshold, and can greatly reduce detection device 3 detection limit and control in this first threshold
The operand of device processed, greatly improves operational efficiency, when running between extreme difference between T less than during preset value by controls dress
Put amendment first threshold draw close to operational factor Y, can more operational factor X processing after the first state more suitably transport
The processing of line parameter Y, improves working (machining) efficiency, and can search out optimal first threshold in drawing close to operational factor Y, enter one
Step improves working (machining) efficiency.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned enforcement
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that, for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications are also
Should be regarded as protection scope of the present invention.
Claims (9)
1. a multi-radian bending machine, including base (1) and the processing unit (plant) (2) that is arranged on base (1), its feature exists
In: described processing unit (plant) (2) include being curved pipe fitting to be processed the first processing assembly (21) forming the first state with
And some groups of the second processing assemblies (22) carrying out pipe fitting to be processed under the first state extruding plastotype, the second described processing group
Part (22) includes expansion link (221) and the pressure roller (222) being rotatably connected on expansion link (221), the second described processing group
Part (22) parallel arrangement and be oppositely arranged on pipe fitting both sides to be processed, described base (1) is additionally provided with and detects expansion link in real time
(221) position or pressure roller (222) position detection device (3) and by detection device (3) control the second processing assembly (22)
Interior expansion link (221) reciprocating control device, described detection device is by the some groups of expansion link being oppositely arranged (221) positions
Put or pressure roller (222) position obtains pipe fitting case of bending to be processed.
A kind of multi-radian bending machine the most according to claim 1, it is characterised in that: described detection device (3) passes through phase
Two pressure roller (222) positions arranged are obtained the compressive state of this position pipe fitting to be processed.
A kind of multi-radian bending machine the most according to claim 1, it is characterised in that: also include being connected to the second processing assembly
(22) stopping means (4) on, described stopping means (4) include fixing expansion link (221) position clamping element (41) and
In being connected on pressure roller (222) make certain area inner press roll (222) keep being relatively fixed to stablize this region, pipe fitting to be processed is curved
The clamping suspension module of curved state.
A kind of multi-radian bending machine the most according to claim 3, it is characterised in that: described clamping suspension module includes even
The contractibility (42) being connected between adjacent pressure roller (222), described contractibility (42) connects makes contractibility (42) keep certain
The actuator of length.
Multi-radian bending machine the most according to claim 3, it is characterised in that: described processing unit (plant) (2) also includes curved
The pipe fitting to be processed of curved one-tenth the first state is transported to the transfer assembly at the second processing assembly (22) place, described stopping means
(4) clamp assemblies that the pipe fitting to be processed after extruding plastotype and the second processing assembly (22) separate also is included.
Multi-radian bending machine the most according to claim 5, it is characterised in that: described clamp assemblies includes revising to be processed
The upper die and lower die of pipe shape.
7. the control method of a multi-radian bending machine, it is characterised in that: comprise the following steps:
S1, control device and preset formation of tubes state, obtain the first processing assembly in processing unit (plant) (2) by formation of tubes state
(21) operational factor X and operational factor Y of the second processing assembly (22)；
S2, control device control the first processing assembly (21) operation according to operational factor X and pipe fitting to be processed are bent to form first
State；
S3, detection device (3) detect pipe fitting degree of crook to be processed in real time, control device according to operational factor Y and detection dress
Put (3) in real time testing result to control the second processing assembly (22) and run pipe fitting to be processed is bent to form end-state.
The control method of a kind of multi-radian bending machine the most according to claim 7, it is characterised in that: described step S3 is also
Comprising the following steps, control device arranges the second processing assembly (22) and runs the first threshold to operational factor Y, controls device
Record the second processing assembly (22) and run the time T to first threshold, by contrasting the fortune of each group of the second processing assembly (22)
Row time T amendment operational factor X is to be less than preset value by the extreme difference between running time T.
The control method of a kind of multi-radian bending machine the most according to claim 8, it is characterised in that: described step S3 is also
Comprise the following steps, when running between extreme difference between T less than controlling device amendment first threshold during preset value to running ginseng
Number Y draws close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610767770.8A CN106238527A (en) | 2016-08-30 | 2016-08-30 | A kind of multi-radian bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610767770.8A CN106238527A (en) | 2016-08-30 | 2016-08-30 | A kind of multi-radian bending machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106238527A true CN106238527A (en) | 2016-12-21 |
Family
ID=58079465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610767770.8A Withdrawn CN106238527A (en) | 2016-08-30 | 2016-08-30 | A kind of multi-radian bending machine |
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| Country | Link |
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| CN (1) | CN106238527A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482495A (en) * | 2020-06-02 | 2020-08-04 | 张宇 | Steel construction metal pipe fittings bender |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5913929A (en) * | 1995-04-13 | 1999-06-22 | Kvaerner Masa-Yards Oy | Bending arrangement for aluminum profile |
| KR101301714B1 (en) * | 2013-03-26 | 2013-08-30 | 박광춘 | Apparatus for forming curved section shape steel by multi-point stretching |
| CN203437472U (en) * | 2013-08-19 | 2014-02-19 | 济钢集团有限公司 | Adjustable tube bending device |
| CN203900187U (en) * | 2014-05-26 | 2014-10-29 | 常州市中煤网络科技有限公司 | Comprehensive pipe bending machine |
| CN104859179A (en) * | 2015-05-27 | 2015-08-26 | 深圳市奥斯玛数控发展有限公司 | Control system of numerical control hydraulic bending machine |
| CN105499339A (en) * | 2016-01-13 | 2016-04-20 | 大连三高集团有限公司 | Pre-bending and forming device |
-
2016
- 2016-08-30 CN CN201610767770.8A patent/CN106238527A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5913929A (en) * | 1995-04-13 | 1999-06-22 | Kvaerner Masa-Yards Oy | Bending arrangement for aluminum profile |
| KR101301714B1 (en) * | 2013-03-26 | 2013-08-30 | 박광춘 | Apparatus for forming curved section shape steel by multi-point stretching |
| CN203437472U (en) * | 2013-08-19 | 2014-02-19 | 济钢集团有限公司 | Adjustable tube bending device |
| CN203900187U (en) * | 2014-05-26 | 2014-10-29 | 常州市中煤网络科技有限公司 | Comprehensive pipe bending machine |
| CN104859179A (en) * | 2015-05-27 | 2015-08-26 | 深圳市奥斯玛数控发展有限公司 | Control system of numerical control hydraulic bending machine |
| CN105499339A (en) * | 2016-01-13 | 2016-04-20 | 大连三高集团有限公司 | Pre-bending and forming device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111482495A (en) * | 2020-06-02 | 2020-08-04 | 张宇 | Steel construction metal pipe fittings bender |
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Application publication date: 20161221 |
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