CN103370150B - Bending machine - Google Patents
Bending machine Download PDFInfo
- Publication number
- CN103370150B CN103370150B CN201280008120.5A CN201280008120A CN103370150B CN 103370150 B CN103370150 B CN 103370150B CN 201280008120 A CN201280008120 A CN 201280008120A CN 103370150 B CN103370150 B CN 103370150B
- Authority
- CN
- China
- Prior art keywords
- mentioned
- drift
- punch die
- flexure
- bending
- Prior art date
- 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.)
- Expired - Fee Related
Links
- 238000005452 bending Methods 0.000 title claims abstract description 70
- 239000000463 material Substances 0.000 claims abstract description 68
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 238000012360 testing method Methods 0.000 description 24
- 238000003754 machining Methods 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/004—Bending sheet metal along straight lines, e.g. to form simple curves with program 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0272—Deflection compensating means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Bending machine (1) possesses: the frame (2) with drift side frame portion (23) and punch die side frame portion (25); Be arranged on the plunger carrier (8) in drift side frame portion (23); Be arranged on the punch die support (10) in punch die side frame portion (25); By the pressing mechanism (3) that drift (6) pressurizes towards punch die (7); Detect the first flexure detector (11) of the stroke amount of drift (6); Detect the second flexure detector (42) of the amount of movement of the reality of drift (6); And control part (5), wherein, control part (5) prestores the relation of the bending length of the deflection of frame (2) and sheet material, material, thickness of slab, the detected value of the second flexure detector (42) is deducted to calculate the actual flexure amount of frame (2) from the detected value of the first flexure detector (11), based on the above-mentioned relation stored, the target deflection of the frame (2) when obtaining the bending sheet material that will bend, the mode becoming target deflection with actual flexure amount controls pressing mechanism (3).
Description
Technical field
The present invention relates to the bending machine (bendingmachine) of bent plate, particularly relate to and do not need to test bending (trialbending(s)) bending machine.
Background technology
Following patent document 1 discloses bending machine (bullodozer) in the past.In this bending machine, the drift side stage with drift (Punch) is arranged on the side (upside) of frame, and the punch die side stage with punch die (Die) is arranged on the opposite side (downside) of frame.Make plunger stroke and to sheet material pressurization, between drift and punch die, carry out the bending machining of sheet material.The stroke amount of drift is detected by drift detector.Stroke amount changes because of the thermal deformation of frame sometimes.Therefore, when the stroke amount detected by drift detector is not desired amount, revises stroke amount and correctly carry out bending machining.
In above-mentioned bending machine, test is carried out to the style (material, thickness of slab, shape (bending length)) of the sheet material of each processing and bends.Setting plus-pressure or stroke amount by testing bending, carrying out bending machining with the plus-pressure set or stroke amount thus realizing the automation of bending machining.
In such bending machining, there are air bending and impression processing (coining) two kinds of processing methods.Wherein, air bending is segmented further as bend portions (partialbending) and school shape (bottoming).That is, bending machining is divided into three kinds of processing methods that bend portions, school shape and impression are processed.
Prior art document
Patent document
Patent document 1: Japanese Laid-Open 2000-343128 publication
Summary of the invention
With regard to air bending, although the deviation (dispersion) of the little angle of bend of plus-pressure is large, so the precision of air bending is not high.When not carrying out the precision of the angle of bend that test is bending and raising is undertaken by air bending to the style of each processed sheet material, need angular transducer.But, at automation bending machine, automatic tool exchange apparatus is installed, so use angle sensor is difficult.Therefore, in order to air bending, need to be bent by the test of the style of each processed sheet material to set best plus-pressure or the stroke amount of drift.Impression processing carries out bending machining so precision is high with the plus-pressure of stressed 10 ~ 12 times of air bending, but has relative to bending length, and plus-pressure becomes very large problem.
As mentioned above, in bending machine in the past, in order to set best plus-pressure or stroke amount (good processing conditions), the style of each processed sheet material needs test bending, and the viewpoint of working (machining) efficiency has problem.
Therefore, the object of the invention is to, provide and do not need test bending and improve working (machining) efficiency, and, the bending machine of good processing conditions can be realized.
The invention provides bending machine, it is characterized in that, possess: there is abutment portion and extend the drift side frame portion of configuration and the frame in punch die side frame portion from the two ends of this base end part respectively to equidirectional; Be arranged on above-mentioned drift side frame portion and the plunger carrier of drift is installed; Be arranged on above-mentioned punch die side frame portion and the punch die support of punch die is installed; By the pressing mechanism of above-mentioned drift bent plate towards the pressurization of above-mentioned punch die and between above-mentioned punch die and above-mentioned drift; Be arranged on above-mentioned pressing mechanism and detect first of the stroke amount of the bending required above-mentioned drift of above-mentioned sheet material and bend detector; Be supported in above-mentioned punch die side frame portion and detect second of the amount of movement of the reality of above-mentioned drift and bend detector; And controller, it prestores the relation of the bending length of the deflection of above-mentioned frame and sheet material, material, thickness of slab, and deduct the detected value of above-mentioned second flexure detector from the detected value of above-mentioned first flexure detector and calculate the actual flexure amount of above-mentioned frame, based on the above-mentioned relation stored, the target deflection of above-mentioned frame when obtaining the bending sheet material that will bend, the mode becoming above-mentioned target deflection with above-mentioned actual flexure amount controls above-mentioned pressing mechanism.
According to above-mentioned feature, control part stores the relation of the bending length of the deflection of frame and sheet material, material, thickness of slab, become the mode of the target deflection of corresponding with the sheet material that will bend (obtaining based on above-mentioned relation) with the actual flexure amount of the frame calculated based on the detected value of the first flexure detector and the second flexure detector, control pressing mechanism.Therefore, it is possible under good processing conditions bent plate, and, do not need sheet material test bend.Its result, can reduce the trouble of the bending machining of sheet material.
Here, preferred above-mentioned pressing mechanism has the motor of the pressurization making above-mentioned drift towards above-mentioned punch die movement, above-mentioned first flexure detector is the encoder of the rotation amount detecting said motor, and above-mentioned second flexure detector is the scale being supported in above-mentioned punch die side frame portion by frames.
If form like this, then the first flexure detector is the encoder of the motor making drift movement, and the second flexure detector is the scale of the amount of movement detecting drift, so can go out the actual flexure amount of frame by direct-detection when bent plate.Therefore, control part accurately can control motor.
In addition, preferred above-mentioned control part has the memory calculating the flexure arithmetic unit of the above-mentioned actual flexure amount of above-mentioned frame and the tables of data of storage definition above-mentioned relation according to above-mentioned first flexure detector and the above-mentioned second detected value bending detector.
If form like this, then bend the actual flexure amount of arithmetic unit computer rack, the tables of data defining above-mentioned relation is stored in memory, so can the actual flexure amount of accurate assurance frame and the relation of sheet material.Therefore, need not carry out that test is bending just can bent plate well.
Accompanying drawing explanation
Fig. 1 is the overall front view of an embodiment of bending machine.
Fig. 2 is the block diagram of the control part of above-mentioned bending machine.
Fig. 3 is the flow chart of the drived control of above-mentioned bending machine.
Fig. 4 is the table being stored in above-mentioned control part.
Detailed description of the invention
One embodiment of bending machine is below described.Bending machine 1 possesses frame 2, pressing mechanism (pressingmechanism) 3, testing agency (detectionmechanism) 4, control part (controller) 5.
The abutment portion (basesection) 21 of frame 2 by specific length, the two ends from abutment portion 21 extend the drift side frame portion (punch-sideframesection) 23 of configuration integratedly respectively and punch die side frame portion (die-sideframesection) 25 is formed.Drift side frame portion 23 and punch die side frame portion 25 erect from abutment portion 21 respectively to equidirectional.Drift side frame portion 23 is provided with drift 6 and pressing mechanism 3.Punch die side frame portion 25 is provided with punch die 7.
Pressing mechanism 3 possesses the ball-screw 30 being supported in drift side frame portion 23 and the motor 32(motor32forpressing pressurizeed).Ball-screw 30 can along its axially rectilinear movement.Be provided with in the front end of ball-screw 30 and link bracket 31.At link bracket 31, plunger carrier 8 is installed.Drift 6 is installed on the front end of plunger carrier 8.Made drift 6 pairs of sheet material pressurizations by moving of ball-screw 30, between drift 6 and punch die 7, sheet material is bent.The movement of drift 6 is undertaken by motor 32.
Motor 32 has reduction gearing 33 at its outlet side.Nut 34 is linked with in reduction gearing 33.Ball-screw 30 and nut 34 screw togather and through.If made by motor 32 nut 34 to both forward and reverse directions rotate, then ball-screw 30 march forward/direction of retreat (feeding/reversingdirection) rectilinear movement.And by the movement of the forward direction of ball-screw 30, sheet material is pressurized, and sheet material is bent.Now, in order to not make along with the rotation of nut 34, the screw of ball-screw 30 rotates drivenly, and needs the rotation being limited screw by mechanical mechanism.Therefore, rotation limiting element 38 is arranged at pressing mechanism 3.
The rotation of motor 32 is controlled by control part 5.In addition, the rotation amount of motor 32 is detected by encoder 11.Encoder 11 is first flexure detectors (firstdeflectiondetector), is detected the stroke amount of the reality towards punch die 7 of drift 6 by the rotation amount detecting motor 32.In addition, the deflection of the frame 2 when pressurizeing to sheet material is comprised in the stroke amount detected by encoder 11.The testing result of encoder 11 exports control part 5 to.
Further, the motor 36(motor36forhigh-speedfeeding of high-speed mobile is provided with at pressing mechanism 3).Motor 36 makes drift 6 high-speed mobile to the position before clamping sheet material.Motor 36 links via reduction gearing 35 and link bracket 31.
Punch die 7 is installed on punch die support 10.Punch die support 10 is installed on the punch die side frame portion 25 of frame 2.Punch die support 10 is installed on punch die side frame portion 25 in the mode that punch die 7 is opposed with drift 6.Testing agency 4 is configured in punch die support 10 side in frame 2.
Testing agency 4 is made up of with the scale 42 being installed on frames 41 frames 41 being supported in punch die side frame portion 25.Form testing agency 4 as follows: even if stressed reaction force acts is in frame 2 when bent plate, reaction force also can not act on frames 41.Scale 42 is configured near plunger carrier 8, detects the relative position of plunger carrier 8 relative to punch die support 10.Scale 42 is not be directly fixed on frame 2 and be installed on frame 2 via frames 41.Because reaction force does not act on frames 41, so scale 42 can detect the amount of movement of the reality of the drift 6 of the deflection not comprising frame 2.That is, scale 42 is second flexure detectors of the amount of movement of the reality detected to the drift 6 during the pressurization of sheet material.The testing result of scale 42 exports control part 5 to.
Control part 5 possesses flexure arithmetic unit (deflectioncalculator) 51 and tables of data 53.Control part 5 controls motor 32 and motor 36.Flexure arithmetic unit 51 calculates the actual flexure amount of the frame 2 when pressurizeing to sheet material.The actual flexure amount of frame 2 bends detector from encoder 11(first) detected value deduct scale 42(second and bend detector) detected value and calculate.Specifically, the actual flexure amount of frame 2 obtains as (detected value of encoder 11)-(detected value of scale 42).
The memory 56(that tables of data 53 is stored in control part 5 is aftermentioned).In tables of data 53, record the relation of the bending length of the deflection of frame 2 and sheet material, material, thickness of slab.Control part 5 obtains the target deflection with the bending length of sheet material, material, frame 2 that thickness of slab is corresponding based on tables of data 53, controls motor 32 so that the actual flexure amount calculated by flexure arithmetic unit 51 becomes target deflection.
Fig. 2 is the block diagram representing control part 5.In control part 5, input interface 54, output interface 55 and memory 56 are connected to CPU58 by data/address bus 57.The flexure arithmetic unit 51 stated can be said be made up of these assemblies.In addition, above-mentioned encoder 11, scale 42, motor 32 and motor 36 is also connected with at data/address bus 57.
Input interface 54 is for inputing to CPU58 by various data, and such as, input interface 54 is connected with keyboard, external disk drive.Output interface 55 is for exporting the data of CPU58, and such as, output interface 55 is connected with display, printer.The data, procedure, the above-mentioned tables of data 53 that input from input interface 54 is stored at memory 56.In addition, the testing result of encoder 11 and scale 42 is input to CPU58 by data/address bus 57.Motor 32 and motor 36 are controlled by the instruction exported from CPU58 via data/address bus 57.
Next, to school shape add man-hour, based on the bending machining of the deflection of frame 2 plus-pressure control be described.
First, the load cell of applied load sensor measures the deflection δ of frame 2 and the relation of plus-pressure F.When plus-pressure F is little constructional shake, distortion etc. as frame 2 deflection δ and show, so the deflection δ of frame 2 and the relation of plus-pressure F can be expressed as exponential function δ=a × F
b(a, b are constants).On the other hand, when plus-pressure F is large, it is constant that the deflection δ of frame 2 and the relation of plus-pressure F can be expressed as linear function δ=c × F+d(c, d).That is, the relation of deflection δ and plus-pressure F is expressed as δ=a × F
b(time F is little), or, time c × F+d(F is large) ... (I).In addition, deflection δ and plus-pressure F relation are expressed as F=(δ/a)
1/b(time F is little), or, time (δ-d)/c(F is large) ... (II).
Plus-pressure required for the shape of school and actual bending machining are separately by processing test to obtain.Processing test is carried out when the initial setting of bending machine 1, is not to bend the test that the style of each sheet material is carried out.Fig. 4 illustrates the tables of data 53 of the relation of the deflection representing sheet material (thickness of slab, material) and frame.In processing test, to each sheet material (A, B ...) (style: thickness of slab (t1, t2,), material (m1, m2 ...) prepare bending length L(L1=0.5, L2=1.0, L3=2.0 ... (unit: m)), the angle of bend measured after processing is the deflection δ of the frame 2 of 90 ° ± 15 °.In the present embodiment, as shown in Figure 4, for each board making tables of data 53, in each tables of data 53, deflection δ is stored according to each above-mentioned sheet material.In addition, also the kind of sheet material also can be processed as parameter, make a tables of data 53.
The deflection δ of the frame 2 measured is scaled plus-pressure F respectively by above-mentioned formula (II).Such as, about sheet material A, calculate F
aL1, F
aL2... (about sheet material B ... also identical).Further, the plus-pressure F converted from deflection δ is transformed to conversion plus-pressure the F '=F/L of unit length ［ 1m ］ further respectively.Such as, about sheet material A, F ' is calculated
aL1, F '
aL2... (sheet material B ... also identical).And, for each sheet material (A, B ...), calculate about whole bending length L(L1, L2, L3 ...) the mean value Z of plus-pressure F ' of unit length.Such as, about sheet material A ［ (t1, m1) ］, ZA is calculated as F '
aL1, F '
aL2, F '
aLn, mean value (sheet material B ... also identical).These mean value, by each sheet material (A, B ...), as the necessary plus-pressure Z(Z of unit length
a, Z
b...) be stored in control part 5.
Next, with reference to the flow chart shown in Fig. 3, the control of the bending machining (school shape) using above-mentioned tables of data 53 is described.
First, the data of processed sheet material input to control part 5(step S11).The data of sheet material are bending length, thickness of slab, material.Control part 5, based on inputted data, calculates the target plus-pressure Ft needed for the shape of school based on calculating formula Ft=Ld × Z.Here, Ld is the bending length in the data inputted in step s 11.Z is the required plus-pressure corresponding with the sheet material of the data inputted in step s 11 (thickness of slab, material), is stored in control part 5 by above-mentioned processing test.
Next, control part 5, based on the target plus-pressure Ft calculated, utilizes above-mentioned formula (I) to calculate the target deflection δ t(step S12 of frame 2).That is, based on the target plus-pressure Ft calculated in step s 11, the target deflection δ t of frame 2 is determined.In other words, when frame 2 has target deflection δ t, can be considered and act on sheet material at target plus-pressure Ft.
Control part 5 drives the motor 32 of pressurization and carries out pressurize (step S13).Now, the testing result of encoder 11 and scale 42 exports control part 5 to.Measure the deflection (step S14) of the frame 2 caused because of pressurization.Deduct the deflection δ of the reality of the value of the detected value of scale 42, i.e. frame 2 based on the detected value from encoder 11, motor 32 is fed control.Specifically, in the mode that the deflection δ of the reality of frame 2 is consistent with target deflection δ t, motor 32 is fed control.
When the target deflection δ t determined in step s 12 is consistent with the deflection δ measured in step S14, that is, when actual plus-pressure F is consistent with target plus-pressure Ft, control part 5 makes motor 32 stop (step S15), terminates the bending machining of sheet material.The target deflection δ t determined in step s 12 and the deflection δ measured in step S14 is inconsistent, control flow returns step S13 and continues through the driving that control part 5 carries out motor 32.
In the present embodiment, control part 5 stores the data of relation of the bending length of the deflection of frame 2 and sheet material, material, thickness of slab, obtain the target deflection with the bending length of sheet material, material, frame 2 that thickness of slab is corresponding based on the data stored, the mode becoming target deflection with the deflection of the reality of frame 2 controls motor 32.Therefore, it is possible to bent plate under good processing conditions, do not need the test of sheet material to bend, the trouble of the bending machining of sheet material can be reduced.
In addition, in the present embodiment, the deflection of frame 2 is detected by the encoder 11 of the motor 32 of pressurization and the scale 42 of amount of movement that detects drift 6, so the deflection of frame 2 can be gone out at the man-hour direct-detection of adding of sheet material.Therefore, control part 5 can control motor 32 exactly.
And, control part 5 has the tables of data 53 of relation representing flexure arithmetic unit 51 and the material of deflection and sheet material, thickness of slab, bending length, so can hold the deflection of frame 2 and the relation of sheet material exactly, need not carry out that test is bending just can machining sheet well.
Claims (3)
1. a bending machine, is characterized in that, possesses:
There is abutment portion and extend the drift side frame portion of configuration and the frame in punch die side frame portion from the two ends of this abutment portion respectively to equidirectional;
Be arranged on above-mentioned drift side frame portion and the plunger carrier of drift is installed;
Be arranged on above-mentioned punch die side frame portion and the punch die support of punch die is installed;
By the pressing mechanism of above-mentioned drift bent plate towards the pressurization of above-mentioned punch die and between above-mentioned punch die and above-mentioned drift;
Be arranged on above-mentioned pressing mechanism and detect first of the stroke amount of the bending required above-mentioned drift of above-mentioned sheet material and bend detector;
Be supported in above-mentioned punch die side frame portion and detect second of the amount of movement of the reality of above-mentioned drift and bend detector; And
Control part, it prestores the relation of the bending length of the deflection of above-mentioned frame and sheet material, material, thickness of slab, and deduct the detected value of above-mentioned second flexure detector from the detected value of above-mentioned first flexure detector and calculate the actual flexure amount of above-mentioned frame, based on stored above-mentioned relation, the target deflection of above-mentioned frame when obtaining the bending sheet material that will bend, becomes the above-mentioned pressing mechanism of mode FEEDBACK CONTROL of above-mentioned target deflection with above-mentioned actual flexure amount.
2. bending machine according to claim 1, is characterized in that,
Above-mentioned pressing mechanism has the motor of the pressurization making above-mentioned drift towards above-mentioned punch die movement,
Above-mentioned first flexure detector is the encoder of the rotation amount detecting said motor,
Above-mentioned second flexure detector is the scale being supported in above-mentioned punch die side frame portion by frames.
3. bending machine according to claim 1 and 2, is characterized in that,
Above-mentioned control part has the memory calculating the flexure arithmetic unit of the above-mentioned actual flexure amount of above-mentioned frame and the tables of data of storage definition above-mentioned relation according to above-mentioned first flexure detector and the above-mentioned second detected value bending detector.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-025800 | 2011-02-09 | ||
| JP2011025800 | 2011-02-09 | ||
| PCT/JP2012/052761 WO2012108436A1 (en) | 2011-02-09 | 2012-02-07 | Bending machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103370150A CN103370150A (en) | 2013-10-23 |
| CN103370150B true CN103370150B (en) | 2016-04-20 |
Family
ID=46638649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280008120.5A Expired - Fee Related CN103370150B (en) | 2011-02-09 | 2012-02-07 | Bending machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20130312479A1 (en) |
| EP (1) | EP2674232B1 (en) |
| JP (1) | JP5579877B2 (en) |
| CN (1) | CN103370150B (en) |
| WO (1) | WO2012108436A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6243752B2 (en) * | 2014-02-25 | 2017-12-06 | 株式会社アマダホールディングス | Press brake |
| CN105598222A (en) * | 2014-11-25 | 2016-05-25 | 无锡市恒盛电机有限公司 | Rolling bending device |
| CN105598219A (en) * | 2014-11-25 | 2016-05-25 | 无锡市恒盛电机有限公司 | Metal plate bending device with thickness adjustment and bending torque and multiple-point pressure detection capabilities |
| CN105855330B (en) * | 2016-04-07 | 2017-10-24 | 扬帆集团股份有限公司 | A kind of shipbuilding steel plate bending device |
| JP6243954B2 (en) * | 2016-04-14 | 2017-12-06 | 株式会社アマダホールディングス | Press brake safety device |
| WO2019158650A2 (en) * | 2018-02-14 | 2019-08-22 | Langenstein & Schemann Gmbh | Production system, production module, method for operating and setting up a production line, and method for producing a workpiece |
| JP6638022B2 (en) * | 2018-05-28 | 2020-01-29 | 株式会社アマダホールディングス | Press brake control device, press brake control method, and mold |
| AT523360B1 (en) * | 2019-12-19 | 2022-05-15 | Trumpf Maschinen Austria Gmbh & Co Kg | Bending machine and control device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4486841A (en) * | 1980-12-09 | 1984-12-04 | Amada Company, Limited | Bending press |
| CN1276745A (en) * | 1997-10-17 | 2000-12-13 | 卢恰诺·加斯帕里尼 | Pressing-bending machine with device for detecting lower and upper cross-member deflection, aimed at interacting with at least one crowning system |
| CN101700544A (en) * | 2009-11-12 | 2010-05-05 | 朱斌 | Numerical control torque synchronous hydraulic bender slide block flexivity compensation mechanism |
| CN102319777A (en) * | 2011-09-20 | 2012-01-18 | 泰安华鲁锻压机床有限公司 | Automatic flexibility compensating device of plate bending roll for ship |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4488237A (en) * | 1982-04-29 | 1984-12-11 | Dynamics Research Corporation | Two dimensional press brake control system and apparatus |
| JP2818275B2 (en) * | 1990-08-25 | 1998-10-30 | 松下電工株式会社 | Bending method |
| JP3202251B2 (en) * | 1991-03-08 | 2001-08-27 | 株式会社アマダ | Bending equipment |
| JP3688004B2 (en) * | 1995-03-23 | 2005-08-24 | 株式会社小松製作所 | Press brake |
| JP3692261B2 (en) * | 1999-06-24 | 2005-09-07 | アイダエンジニアリング株式会社 | Bottom dead center correction device by servo press load |
| JP2000343128A (en) | 1999-06-04 | 2000-12-12 | Amada Eng Center Co Ltd | Bending method and bending equipment |
| JP2002239800A (en) * | 2000-12-04 | 2002-08-28 | Sintokogio Ltd | Press, and press control method |
| JP4113948B2 (en) * | 2003-07-17 | 2008-07-09 | 独立行政法人産業技術総合研究所 | Operating force generator |
| JP2006192498A (en) * | 2004-12-15 | 2006-07-27 | Amada Co Ltd | Bending method and bending machine |
-
2012
- 2012-02-07 US US13/984,317 patent/US20130312479A1/en not_active Abandoned
- 2012-02-07 JP JP2012556901A patent/JP5579877B2/en not_active Expired - Fee Related
- 2012-02-07 EP EP12744487.5A patent/EP2674232B1/en active Active
- 2012-02-07 CN CN201280008120.5A patent/CN103370150B/en not_active Expired - Fee Related
- 2012-02-07 WO PCT/JP2012/052761 patent/WO2012108436A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4486841A (en) * | 1980-12-09 | 1984-12-04 | Amada Company, Limited | Bending press |
| CN1276745A (en) * | 1997-10-17 | 2000-12-13 | 卢恰诺·加斯帕里尼 | Pressing-bending machine with device for detecting lower and upper cross-member deflection, aimed at interacting with at least one crowning system |
| CN101700544A (en) * | 2009-11-12 | 2010-05-05 | 朱斌 | Numerical control torque synchronous hydraulic bender slide block flexivity compensation mechanism |
| CN102319777A (en) * | 2011-09-20 | 2012-01-18 | 泰安华鲁锻压机床有限公司 | Automatic flexibility compensating device of plate bending roll for ship |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5579877B2 (en) | 2014-08-27 |
| EP2674232A1 (en) | 2013-12-18 |
| EP2674232A4 (en) | 2016-09-07 |
| US20130312479A1 (en) | 2013-11-28 |
| JPWO2012108436A1 (en) | 2014-07-03 |
| WO2012108436A1 (en) | 2012-08-16 |
| EP2674232B1 (en) | 2017-05-10 |
| CN103370150A (en) | 2013-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103370150B (en) | Bending machine | |
| CN101379365B (en) | Method and device for acquiring contour deviations | |
| WO2001053017A1 (en) | Sheet working method, sheet working system, and various devices related to such system | |
| CN102430683B (en) | Error real time online compensation method for precise servo forging press | |
| CN102152493A (en) | Controlling device for servo press, controlling method for the same and the servo press | |
| US20080066515A1 (en) | Method for changing force control gain and die cushion control apparatus | |
| CN102922371A (en) | Ram thermal-deformation compensation mechanism of numerical control machine tool | |
| US10081151B2 (en) | Servo press and control method | |
| CN103317116A (en) | Automatic adjusting system and control method based on die-casting machine clamping force | |
| EP2141445A1 (en) | Measuring instrument | |
| EP2085739B1 (en) | Probe straightness measuring method | |
| JPH07112216A (en) | Method for setting ram position of press brake and ram controller | |
| US5243902A (en) | Hydraulic bending press with movable lower platen | |
| US6519996B1 (en) | Pressing-bending machine with a device for detecting the lower and upper cross-members deflection, aimed at interacting with at least one crowning system | |
| US6796155B2 (en) | Sheet thickness detecting method and device therefor in bending machine, reference inter-blade distance detecting method and device therefor, and bending method and bending device | |
| US7898205B2 (en) | Feedback positioning module | |
| JP2001198622A (en) | Calculating method for material attribute, method and apparatus for working plate | |
| CN109108158A (en) | A kind of bending machine wallboard ratio deformation compensating mechanism | |
| CN201613477U (en) | Temperature rise measuring and compensating device of feeding system | |
| JP6638022B2 (en) | Press brake control device, press brake control method, and mold | |
| KR20170009290A (en) | Device for accuracy measuring of press machine | |
| TWI786751B (en) | System of analyzing and measuring distance sensor | |
| CN202015767U (en) | Deflection compensating mechanism of bending machine | |
| CN115655572A (en) | Cantilever beam type calibration method for milli-Newton level compression force | |
| JPH07246427A (en) | Method for bending and device therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |