CN109108158A - A kind of bending machine wallboard ratio deformation compensating mechanism - Google Patents
A kind of bending machine wallboard ratio deformation compensating mechanism Download PDFInfo
- Publication number
- CN109108158A CN109108158A CN201710492731.6A CN201710492731A CN109108158A CN 109108158 A CN109108158 A CN 109108158A CN 201710492731 A CN201710492731 A CN 201710492731A CN 109108158 A CN109108158 A CN 109108158A
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- wallboard
- balanced body
- bending machine
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- type frame
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- 238000005452 bending Methods 0.000 title claims abstract description 42
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 230000006837 decompression Effects 0.000 claims description 15
- 239000010727 cylinder oil Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 208000001491 myopia Diseases 0.000 description 5
- 230000004379 myopia Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011160 research 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
- B21D37/00—Tools as parts of machines covered by this subclass
-
- 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
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
A kind of bending machine wallboard ratio deformation compensating mechanism, it is related to bending machine equipment field, including bending machine two sides wallboard, upper beam, underbeam, grating scale, c-type frame, balanced body, balance rollers, balanced body free bearing, depressurize block and spring, the c-type frame of same structure is equipped on the outside of the wallboard of two sides, the surface of plane is equipped with balanced body on the c-type frame of two sides, the balanced body one end is hinged with balanced body free bearing, its other end is connected with vertical toggle, gimbal suspension axis is connected with above toggle, gimbal suspension axis connection horizontal cross bar, cross bar is fixedly connected with the slide head of grating scale, sliding slot is equipped in balanced body between the balanced body free bearing and the spring, balance rollers are nested in sliding slot and can be along the upper plane rollings of c-type frame level, the application provides a kind of bending machine wallboard ratio deformation compensating mechanism, structure is simple , because of the measurement error that two sides wallboard deformation generates when can eliminate bending process to the maximum extent, to reach the bending precision for improving workpiece.
Description
Technical field
The present invention relates to bending machine equipment fields, and in particular to a kind of bending machine wallboard ratio deformation compensating mechanism.
Background technique
Numerical control bender is largely used at present in sheet metal forming field, and numerical control bender is by being mounted on the upper of upper beam
Mould makes plate bend to design angle with respect to the lower die pressing sheet material being installed on the workbench.Upper beam is mounted on the left and right of rack
Move up and down on wallboard and by guide rail, numerical control bender manufacture and design in critical issue be exactly that upper beam synchronizes essence
How degree, i.e., guarantee the depth of parallelism problem of upper beam lower plane and work top, that is, each point and work on the lower plane of upper beam
Table top away from difference meet accuracy standard (0.1/1000), the problem of most typically not can avoid is exactly the two sides in bending process
" dehiscing " effect occurs for wallboard deformation under this pair of of reaction force that master cylinder and compensating cylinder are implemented, i.e., two sides wallboard is perpendicular
Histogram is to small deformation is generated, and wherein the top half deformation ratio of bending machine rack two sides wallboard is larger, and largest deformation should be with
At c-type aditus laryngis in rack two sides wallboard, the grating scale for measuring upper beam stroke is directly anchored to side wall panel, due to
The deformation of " dehiscing " effect will lead to grating scale feedback data deviation, and since the machining accuracy that numerical control bender requires is higher,
It is current raising bending machining essence because of " dehiscing " effect errors that deformation generates when how to eliminate bending process to greatest extent
Spend a problem of research.
Summary of the invention
Mentioned above in order to solve the problems, such as, the application provides a kind of bending machine wallboard ratio deformation compensating mechanism, structure
Simply, because of the measurement error that two sides wallboard deformation generates when can eliminate bending process to the maximum extent, workpiece is improved to reach
Bending precision, its technical solution is as follows:
A kind of bending machine wallboard ratio deformation compensating mechanism, including bending machine two sides wallboard, upper beam, underbeam, grating scale, c-type frame,
Balanced body, balance rollers, balanced body free bearing, decompression block and spring, wherein grating scale is made of slide head and scale, and slide head can
Along the scale sliding being fixed on the inside of upper beam, the top between the two sides wallboard is equipped with upper beam, lower section is equipped with underbeam, it is described on
Beam is slidably connected by guide rail and two sides wallboard, and the c-type frame of same structure, the bottom end of c-type frame are equipped on the outside of the wallboard of two sides
It is fixed on underbeam, the surface of plane is equipped with balanced body on the c-type frame of the two sides, which is hinged with balanced body
Free bearing, balanced body free bearing are fixed on corresponding wallboard, and the other end is connected with vertical toggle, are connected with above toggle universal
Joint shaft, gimbal suspension axis connection horizontal cross bar, the cross bar be fixedly connected with the slide head of grating scale, close to grating
Equipped with decompression block above the balanced body end of ruler side, decompression block is fixed on corresponding wallboard, and bottom end is by spring and puts down
The body that weighs connects, and sliding slot is equipped in the balanced body between the balanced body free bearing and the spring, and balance rollers are nested in sliding slot
It is interior and can be along the upper plane rolling of c-type frame level.
Further, the balanced body is parallel with the upper plane of c-type frame level under normal circumstances.
Further, the grating scale also data connection has the digital control system of bending machine, the digital control system and electro-hydraulic servo
Valve communication connection, electrohydraulic servo valve control two master cylinder oil mass sizes for driving upper beam to move up and down.
A kind of working principle of bending machine wallboard ratio deformation compensating mechanism:
Since two sides wallboard is complete one block of plate using same material, " dehiscing " occurs for two sides wallboard in bending process
The micro-strain amount generated when effect, at the c-type aditus laryngis axis of symmetry of wallboard along the vertical direction on deformation quantity can myopia
Regard equal proportion as, that is, deviates the somewhere wallboard of certain distance at the axis of symmetry, the ratio myopia of deformation quantity and the distance
Keep a numerical value, the work when size of the numerical value interacts depending on the material and master cylinder and compensating cylinder of wallboard
Firmly size, if these factors be once it is determining, which is constant；According to the principle, when in bending process two
For side wall panel when vertical direction generates small deformation, correspondingly linkage drives upper beam that can also generate a micro-displacement upwards,
Just the upper beam displacement for producing grating scale detection generates little deviation, and c-type frame is due to being fixed on underbeam, not by wallboard
The influence of deformation, balanced body of the invention are set as keeping horizontality always, when shape occurs for bending machine bending process deadlight
When change, the offset of slight distance can occur with wallboard moment first for the decompression block being fixed on wallboard, and spring is due to lower section at this time
Balanced body and balance rollers etc. gravity reason, can correspondingly be stretched downwards with the slight distance, while balance rollers are along C
Plane occurs a very little distance and slides in type frame, so that balanced body fast quick-recovery is to horizontality, when balanced body is being restored extremely
During horizontality, the slide head for the grating scale connecting with balanced body correspondingly links in vertical direction, by dividing
Analyse us it is found that should during spring flexible variable be equivalent to decompression block at wallboard deformation quantity, the slide head of grating scale
Slide displacement amount is equivalent to the displacement of upper beam, just eliminates the grating scale generated by two sides wallboard deformation to the maximum extent in this way
Measurement error, hereafter the grating scale of two sides by real-time detection to upper beam displacement constantly feed back to digital control system, numerical control system
Then system controls the master cylinder oil mass of electrohydraulic servo valve adjustment two sides, the master cylinder of two sides is made to adjust the sliding row of upper beam two sides
Journey, realize each point and work top on upper beam lower plane away from it is consistent.
In addition, originally designing c-type to can more intuitively observe the displacement deviation amount of upper beam in bending process
When frame, balanced body, balance rollers, balanced body free bearing, the decompression devices such as block and spring, by measuring balanced body free bearing to grating scale
Horizontal distance a, balanced body free bearing to decompression block horizontal distance b, stretching for each spring is measured by multiple bending
Contracting amount c, and it is easy to act as after balanced body restores horizontality that (initial position is uniformly set as a certain for the specific locations of balance rollers
Place), we can myopia obtain each bending test when upper beam because wallboard deformation caused by offset deviation amount H=ac/b, by the displacement
Deviation numerical quantity corresponds to specific location of each balance rollers in balanced body and inscribes scale, then according to repeatedly testing
Scale is made into complete scale in balanced body equal percentage, and subsequent we can be stopped in balanced body by observing balance rollers
Scale understand the offset deviation amount of upper beam at this time.
According to above-mentioned technical proposal, upper beam actual displacement amount of the invention passes through the self balancing balanced body of energy and independence
Without the c-type frame that deformation influences, by the equivalent deformation quantity to spring of the deformation quantity of upper beam, dynamically detect that the synchronous of upper beam is missed
Difference controls electrohydraulic servo valve by digital control system to correct the synchronous error of two side slides, makes two side slides in the case where unbalance loading
It always can be with workbench keeping parallelism, because the measurement that two sides wallboard deformation generates misses when eliminating bending process to the maximum extent
Difference achievees the purpose that the bending precision for improving workpiece.
Detailed description of the invention
Below by specific embodiment combination attached drawing, invention is further described in detail.
Fig. 1 is side schematic view of the invention；
Fig. 2 is the partial schematic diagram of Fig. 1；
Fig. 3 is A partial schematic diagram in Fig. 2；
Fig. 4 is another angle schematic diagram of Fig. 2；
Fig. 5 is the B partial schematic diagram of Fig. 4.
Wherein, 1, wallboard；2, upper beam；3, underbeam；4, c-type frame；5, balanced body；50, sliding slot；6, balance rollers；7, it balances
Body free bearing；8, block is depressurized；9, spring；10, slide head；11, scale；12, toggle；13, gimbal suspension axis；14, cross bar；15, right
Claim at axis.
Specific embodiment
Below by specific embodiment combination attached drawing, invention is further described in detail.
As shown in Fig. 1 to 5, a kind of bending machine wallboard ratio deformation compensating mechanism, including bending machine two sides wallboard 1, upper beam
2, underbeam 3, grating scale, c-type frame 4, balanced body 5, balance rollers 6, balanced body free bearing 7, decompression block 8 and spring 9, wherein grating scale
It is made of slide head 10 and scale 11, slide head 10 can be slided along the scale 11 for being fixed on 2 inside of upper beam, the two sides wallboard 1
Between top be equipped with upper beam 2, lower section is equipped with underbeam 3, the upper beam 2 is slidably connected by guide rail with two sides wallboard 1, both walls
The outside of plate 1 is equipped with the c-type frame 4 of same structure, and the bottom end of c-type frame 4 is fixed on underbeam 3, on the c-type frame 4 of the two sides
The surface of plane is equipped with balanced body 5, which is hinged with balanced body free bearing 7, and balanced body free bearing 7 is fixed on accordingly
Wallboard 1 on, the other end is connected with vertical toggle 12, and gimbal suspension axis 13, gimbal suspension axis are connected with above toggle 12
13 are connected to horizontal cross bar 14, and the cross bar 14 is fixedly connected with the slide head 10 of grating scale, close to grating scale side
Decompression block 8 is equipped with above 5 end of balanced body, decompression block 8 is fixed on corresponding wallboard 1, and bottom end passes through spring 9 and balanced body
5 connect, and sliding slot 50 is equipped in the balanced body 5 between the balanced body free bearing 7 and the spring 9, and balance rollers 6 are nested in cunning
And it can be along the upper plane rolling of 4 level of c-type frame in slot 50.Wherein grating scale structure and its apply the work on bending machine
Principle will herein be described in detail using the prior art.
The balanced body is parallel with the upper plane of c-type frame level under normal circumstances.
Further, the grating scale also data connection has the digital control system of bending machine, the digital control system and electro-hydraulic servo
Valve communication connection, electrohydraulic servo valve control two master cylinder oil mass sizes for driving upper beam to move up and down.Wherein numerical control
System, electrohydraulic servo valve and its working principle is that the prior art.
The working principle of the invention:
Since two sides wallboard 1 is complete one block of plate using same material, two sides wallboard 1 occurs " to open in bending process
Mouthful " effect when the micro-strain amount that generates, at the c-type aditus laryngis axis of symmetry of wallboard 1 15 along the vertical direction on deformation quantity can
Regard equal proportion as with myopia, that is, deviates the somewhere wallboard 1 of 15 certain distances at the axis of symmetry, deformation quantity and the distance
Ratio myopia keeps a numerical value, material and master cylinder and compensating cylinder phase interaction of the size of the numerical value depending on wallboard 1
The amount of force of used time, if these factors be once it is determining, which is constant.
Balanced body 5 of the invention remains horizontality, when deformation occurs for bending machine bending process deadlight 1,
The offset of slight distance can occur with wallboard 1 moment first for the decompression block 8 being fixed on wallboard 1, and spring 9 is due to lower section at this time
The gravity reason of balanced body 5 and balance rollers 6 etc. can correspondingly be stretched downwards with the slight distance, at the same balance rollers 6 along
Plane occurs a very little distance and slides on c-type frame 4, so that the fast quick-recovery of balanced body 5 is to horizontality, when balanced body 5 is extensive
During answering to horizontality, the slide head 10 for the grating scale connecting with balanced body 5 correspondingly links in vertical direction,
By analyze us it is found that should during spring 9 flexible variable be equivalent to decompression block 8 at 1 deformation quantity of wallboard, grating scale
The slide displacement amount of slide head 10 is equivalent to the displacement of upper beam 2, is just eliminated to the maximum extent in this way because of 1 deformation of two sides wallboard
The optical grating ruler measurement error of generation, hereafter the grating scale of two sides by real-time detection to 2 displacement of upper beam constantly feed back to number
Then control system, digital control system control the master cylinder oil mass of electrohydraulic servo valve adjustment two sides, the master cylinder of two sides is made to adjust upper beam 2
The sliding stroke of two sides, realize each point and work top on 2 lower plane of upper beam away from it is consistent.
Use above specific case is illustrated the present invention, is merely used to help understand the present invention, not to limit
The system present invention.For those skilled in the art, according to the thought of the present invention, can also make several simple
It deduces, deform or replaces.
Claims (3)
1. a kind of bending machine wallboard ratio deformation compensating mechanism, which is characterized in that including bending machine two sides wallboard, upper beam, underbeam,
Grating scale, c-type frame, balanced body, balance rollers, balanced body free bearing, decompression block and spring, wherein grating scale is by slide head and scale
Composition, slide head can be along the top between the scale sliding being fixed on the inside of upper beam, the two sides wallboard is equipped with upper beam, lower section is set
There is underbeam, the upper beam is slidably connected by guide rail and two sides wallboard, and the c-type of same structure is equipped on the outside of the wallboard of two sides
The bottom end of frame, c-type frame is fixed on underbeam, and the surface of plane is equipped with balanced body, the balanced body one on the c-type frame of the two sides
End is hinged with balanced body free bearing, and balanced body free bearing is fixed on corresponding wallboard, and the other end is connected with vertical toggle, toggle
Top is connected with gimbal suspension axis, gimbal suspension axis connection horizontal cross bar, the slide head of the cross bar and grating scale fix
Connection is equipped with decompression block above the balanced body end close to grating scale side, and decompression block is fixed on corresponding wallboard, bottom
End is connect by spring with balanced body, and sliding slot, balance are equipped in the balanced body between the balanced body free bearing and the spring
Idler wheel is nested in sliding slot and can be along the upper plane rolling of c-type frame level.
2. a kind of bending machine wallboard ratio deformation compensating mechanism as described in claim 1, which is characterized in that the balanced body exists
It is parallel with the upper plane of c-type frame level under normal circumstances.
3. a kind of bending machine wallboard ratio deformation compensating mechanism as described in claim 1, which is characterized in that the grating scale is also
Data connection has the digital control system of bending machine, and the digital control system and electrohydraulic servo valve communication connection, electrohydraulic servo valve control use
In two master cylinder oil mass sizes that driving upper beam moves up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710492731.6A CN109108158A (en) | 2017-06-26 | 2017-06-26 | A kind of bending machine wallboard ratio deformation compensating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710492731.6A CN109108158A (en) | 2017-06-26 | 2017-06-26 | A kind of bending machine wallboard ratio deformation compensating mechanism |
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| CN109108158A true CN109108158A (en) | 2019-01-01 |
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| CN201710492731.6A Pending CN109108158A (en) | 2017-06-26 | 2017-06-26 | A kind of bending machine wallboard ratio deformation compensating mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117836072A (en) * | 2021-08-23 | 2024-04-05 | 百超激光有限公司 | Bending machines, especially press brakes, with position measuring systems |
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| CN102699156A (en) * | 2012-04-19 | 2012-10-03 | 安徽东海机床制造有限公司 | Electro-hydraulic control multi-cylinder linkage bending machine |
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| CN105327982A (en) * | 2015-10-23 | 2016-02-17 | 南通太和机械集团有限公司 | Numerical control hydraulic plate bending machine with lower compensation mechanism |
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| CN106270163A (en) * | 2016-08-31 | 2017-01-04 | 安徽省华夏机床制造有限公司 | A kind of control method of bender electrodynamic balance adjusting means |
| CN106270162A (en) * | 2016-08-31 | 2017-01-04 | 安徽省华夏机床制造有限公司 | A kind of bender electrodynamic balance adjusting means |
| CN206966430U (en) * | 2017-06-26 | 2018-02-06 | 嘉意机床（上海）有限公司 | A kind of bender wallboard ratio deformation compensating mechanism |
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2017
- 2017-06-26 CN CN201710492731.6A patent/CN109108158A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700544A (en) * | 2009-11-12 | 2010-05-05 | 朱斌 | Numerical control torque synchronous hydraulic bender slide block flexivity compensation mechanism |
| CN102699156A (en) * | 2012-04-19 | 2012-10-03 | 安徽东海机床制造有限公司 | Electro-hydraulic control multi-cylinder linkage bending machine |
| CN103521575A (en) * | 2013-11-04 | 2014-01-22 | 江苏扬力数控机床有限公司 | Deflection adaptive compensation type mechanical servo numerical control bending machine |
| CN105327982A (en) * | 2015-10-23 | 2016-02-17 | 南通太和机械集团有限公司 | Numerical control hydraulic plate bending machine with lower compensation mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117836072A (en) * | 2021-08-23 | 2024-04-05 | 百超激光有限公司 | Bending machines, especially press brakes, with position measuring systems |
| US20240261837A1 (en) * | 2021-08-23 | 2024-08-08 | Bystronic Laser Ag | Bending machine, in particular a press brake, with a position measuring system |
| CN117836072B (en) * | 2021-08-23 | 2024-12-06 | 百超激光有限公司 | Bending machines, especially press brakes, with position measuring systems |
| US12214405B2 (en) * | 2021-08-23 | 2025-02-04 | Bystronic Laser Ag | Bending machine, in particular a press brake, with a position measuring system |
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Effective date of registration: 20200508 Address after: 201806 No. 55 Hengxiang Road, Waigang Industrial Park, Jiading District, Shanghai Applicant after: Shanghai Jiayi mechanical equipment Co.,Ltd. Address before: 201806 Building 7-8, 55 Hengxiang Road, Waigang Town, Jiading District, Shanghai Applicant before: JIAYI MACHINE TOOL (SHANGHAI) Co.,Ltd. |
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Effective date of registration: 20210720 Address after: 201806 building 7-8, 55 Hengxiang Road, Waigang Town, Jiading District, Shanghai Applicant after: JIAYI MACHINE TOOL (SHANGHAI) Co.,Ltd. Address before: No.55, Hengxiang Road, No.3 District, Waigang Industrial Park, Jiading District, Shanghai, 201806 Applicant before: Shanghai Jiayi mechanical equipment Co.,Ltd. |
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