CN106890871B - Stand stretch compensation device and bending machine - Google Patents
Stand stretch compensation device and bending machine Download PDFInfo
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- CN106890871B CN106890871B CN201710296448.6A CN201710296448A CN106890871B CN 106890871 B CN106890871 B CN 106890871B CN 201710296448 A CN201710296448 A CN 201710296448A CN 106890871 B CN106890871 B CN 106890871B
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- lever assembly
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- compensation device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- 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
- B21D5/0209—Tools therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/006—Bending sheet metal along straight lines, e.g. to form simple curves combined with measuring of bends
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The present invention provides a kind of stand stretch compensation device and bending machines, the big technical problem of the bending degree error to solve bending machine existing in the prior art.The stand stretch compensation device includes fulcrum component and lever assembly；The lever assembly is flexibly connected with the fulcrum component and can carry out lever swing by fulcrum of the fulcrum component；The first end of the lever assembly with the side plate of bending machine for connecting, and the second end of the lever assembly is connected with grating reading head, and the fulcrum component with the underbeam of bending machine for connecting.
Description
Technical field
The present invention relates to deformation compensation technology fields, more particularly, to a kind of stand stretch compensation device and bending machine.
Background technique
Bending machine is a kind of machine that bending can be carried out to thin plate, and in panel beating sector, bending machine is rolled over to metal plate
Curved production equipment.The bending power that bending machine carries out bending to workpiece is very big, and in bending process, rack needs to bear biggish answer
Power, according to the mechanics principle of material, correspondingly, rack can generate certain miniature deformation due to the presence of the stress, that is, strain,
When strain reaches a certain level, the bending precision for being bent over workpiece will receive the influence of the strain.
The rack of bending machine includes the first side plate and the second side plate of relative spacing setting in the horizontal direction, and along vertical
The upper beam and underbeam of direction relative spacing setting, upper beam and underbeam are connected between the first side plate and the second side plate.At bending machine
Under non-working condition, the rack of bending machine is not required to meet with stresses, and rack does not generate strain, and bending machine is under use state,
When carrying out bending to workpiece, due to the presence of bending power, rack generates corresponding strain.Specifically, the measuring device of bending machine
For grating scale, grating scale includes scale grating and grating reading head, wherein scale grating is connect with upper beam, grating reading head with
First side plate of rack or the connection of the second side plate, grating reading head is used to read the size in scale grating, to determine under upper beam
The distance of drop.The upper beam of bending machine is connect with side plate by oil cylinder, and when bending machine works, the side plate stress of rack is upwardly-deformed,
The position of upper beam synchronizes to shift upwards, and the reading of grating reading head is caused error occur, and the distance that upper beam moves downward is small
In the distance of actual needs movement, so that there is large error in the bending degree of bending plate.
Summary of the invention
The purpose of the present invention is to provide a kind of stand stretch compensation devices, to solve bending machine existing in the prior art
The big technical problem of bending degree error.
In order to achieve the above objectives, the embodiment of the present invention uses following technical scheme:
A kind of stand stretch compensation device, including fulcrum component and lever assembly；
The lever assembly is flexibly connected with the fulcrum component and can carry out lever by fulcrum of the fulcrum component
Formula is swung；
For connecting with the side plate of bending machine, the second end of the lever assembly is connected with the first end of the lever assembly
Grating reading head, the fulcrum component with the underbeam of bending machine for connecting.
Further, the lever assembly includes fixing seat and the graduated scale with fixing seat rotation connection；
The fixing seat with the side plate of bending machine for connecting；
The graduated scale be equipped with along the graduated scale length direction extend pilot hole, the fulcrum component with it is described
It pilot hole grafting and can be moved along the length direction of the pilot hole.
Further, the fulcrum component includes Mobile base and the rolling bearing with Mobile base pivot joint；
The rolling bearing is used to connect with the underbeam of bending machine；
The Mobile base and the pilot hole grafting and the rolling bearing is able to drive along the length side of the pilot hole
To rolling.
It further, further include press component；
The upper end of the press component with the side plate of bending machine for connecting, the lower end of the press component and the lever
The second end of component abuts so that the second end of the lever assembly has the trend moved downward always.
Further, the press component includes positioning seat and vertical type spring；
For connecting with the side plate of bending machine, the upper end of the spring is connect the positioning seat with the positioning seat, described
The lower end of spring is abutted with the second end of the lever assembly.
It further, further include the adjusting component being connected between the lever assembly and the grating reading head；
The grating reading head is located at the lower section of the second end of the lever assembly, and the adjusting component is described for adjusting
The second end of grating reading head and the lever assembly in the vertical direction at a distance from.
Further, the adjusting component includes the first oscillating bearing from top to bottom set gradually, connecting column, the second pass
Bearings；
First oscillating bearing is connect with the second end of the lever assembly；
The second joint bearing is connect with the grating reading head；
First oscillating bearing, the connecting column, the second joint bearing are successively threadedly coupled.
It further, further include C-shaped supporting frame, the fulcrum modular support is in the C-shaped supporting frame；
The C-shaped supporting frame with the underbeam of bending machine for connecting.
Stand stretch compensation device provided by the invention, lever assembly therein are flexibly connected with fulcrum component and can be with
Fulcrum component is that fulcrum carries out lever swing, wherein the first end of lever assembly with the side plate of bending machine for connecting, lever
The second end of component is connected with grating reading head, and fulcrum component with the underbeam of bending machine for connecting.In use, by lever assembly
First end and bending machine side plate connect, by the underbeam of fulcrum component and bending machine connect, also that is, by bending machine underbeam pair
Fulcrum component is supported.
During bending machine treats bending workpieces progress bending, the side plate stress of bending machine is upwardly-deformed, due to lever
The first end of component is connect with side plate, and the first end of side plate synchronous drive lever assembly shifts upwards, and under bending machine
Beam is not influenced by side plate deformation, and fulcrum component is supported by underbeam, and lever assembly carries out lever pendulum by fulcrum of fulcrum component
Dynamic, then the second end of lever assembly, which synchronizes, offsets downward, the second end connection of grating reading head and lever assembly, then grating reading
Head, which synchronizes, to be offset downward, at this point, grating reading head can re-start reading to the scale grating on upper beam, is compensated for because of side
Error in reading caused by plate deforms, the distance that upper beam moves downward are equidistant with actual needs movement, therefore, bending machine
Bending precision greatly improves.
Another object of the present invention is to provide a kind of bending machine, which includes side plate, upper beam, underbeam, scale light
Grid, and stand stretch compensation device as described above；
The first end of the lever assembly of the stand stretch compensation device is connect with the side plate；
The upper beam and the underbeam are spaced setting along the vertical direction, and the scale grating is connect with the upper beam, described
The fulcrum component of stand stretch compensation device is connect with the underbeam, and the scale grating is opposite with the grating reading head.
Further, the side plate includes the first side plate and the second side plate of horizontally spaced setting；
The stand stretch compensation device is two, two stand stretch compensation devices and first side plate and institute
The second side plate is stated to be arranged in a one-to-one correspondence.
The beneficial effect of the bending machine compared with the prior art, with above-mentioned stand stretch compensation device compared to existing skill
The beneficial effect of art is identical, and details are not described herein again.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic diagram of stand stretch compensation device provided in an embodiment of the present invention；
Fig. 2 is the first schematic diagram of bending machine provided in an embodiment of the present invention；
Fig. 3 is the second schematic diagram of bending machine provided in an embodiment of the present invention；
Fig. 4 is the third schematic diagram of bending machine provided in an embodiment of the present invention；
Fig. 5 is that existing bending machine is in the schematic diagram under non-working condition；
Fig. 6 is that existing bending machine is in the schematic diagram under use state.
Appended drawing reference:
The first side plate of 1-；3- upper beam；4- underbeam；5- lever assembly；6- fulcrum component；7- press component；8- adjusts component；
9- support frame；10- grating reading head；11- scale grating；51- fixing seat；52- graduated scale；53- pilot hole；61- Mobile base；
62- rolling bearing；71- positioning seat；72- spring；The first oscillating bearing of 81-；82- connecting column；83- second joint bearing；100-
Stand stretch compensation device.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 is the schematic diagram of stand stretch compensation device provided in an embodiment of the present invention.
Shown in referring to Fig.1, stand stretch compensation device provided in this embodiment, including fulcrum component 6 and lever assembly 5；
The lever assembly 5 is flexibly connected with the fulcrum component 6 and can be that fulcrum carries out lever pendulum with the fulcrum component 6
It is dynamic；For the first end of the lever assembly 5 for connecting with the side plate of bending machine, the second end of the lever assembly 5 is connected with light
Grid reading head 10, the fulcrum component 6 with the underbeam of bending machine for connecting.
Stand stretch compensation device provided by the invention, lever assembly therein are flexibly connected with fulcrum component and can be with
Fulcrum component is that fulcrum carries out lever swing, wherein the first end of lever assembly with the side plate of bending machine for connecting, lever
The second end of component is connected with grating reading head, and fulcrum component with the underbeam of bending machine for connecting.In use, by lever assembly
First end and bending machine side plate connect, by the underbeam of fulcrum component and bending machine connect, also that is, by bending machine underbeam pair
Fulcrum component is supported.
During bending machine treats bending workpieces progress bending, the side plate stress of bending machine is upwardly-deformed, due to lever
The first end of component is connect with side plate, and the first end of side plate synchronous drive lever assembly shifts upwards, and under bending machine
Beam is not influenced by side plate deformation, and fulcrum component is supported by underbeam, and lever assembly carries out lever pendulum by fulcrum of fulcrum component
Dynamic, then the second end of lever assembly, which synchronizes, offsets downward, the second end connection of grating reading head and lever assembly, then grating reading
Head, which synchronizes, to be offset downward, at this point, grating reading head can re-start reading to the scale grating on upper beam, is compensated for because of side
Error in reading caused by plate deforms, the distance that upper beam moves downward are equidistant with actual needs movement, therefore, bending machine
Bending precision greatly improves.
Further, graduated scale 52 of the lever assembly 5 including fixing seat 51 and with the fixing seat 51 rotation connection,
For the fixing seat 51 for connecting with the side plate of bending machine, the graduated scale 52 is equipped with the length direction along the graduated scale 52
The pilot hole 53 of extension, the fulcrum component 6 and 53 grafting of pilot hole and can be along the length direction of the pilot hole 53
It is mobile.Due to the bending machine of different model, corresponding maximum bending power is different, the strain of the different corresponding side plates of bending power
It is different, also that is, the deformation of the different corresponding side plates of bending power is different, different bending machines is needed, can adjust fulcrum group
Position of the part relative to lever assembly, in other words, the fulcrum of lever assembly are changeable, and then have adjusted the power arm of lever assembly
With the ratio of resistance arm lengths, to adapt to compensating proportion required for different types so that the stand stretch compensation device have
There is versatility.
In other embodiments, it is branch with fulcrum component that lever assembly and fulcrum component can be pivotally connected by a lateral drive-connecting shaft
Point, lever assembly can rotate in perpendicular around drive-connecting shaft, but the articulated manner is only applicable to a kind of bending machine of model, no
With versatility.
In the present embodiment, rolling bearing 62 of the fulcrum component 6 including Mobile base 61 and with the Mobile base 61 pivot joint,
The rolling bearing 62 is used to connect with the underbeam of bending machine, the Mobile base 61 and 53 grafting of pilot hole and can
The rolling bearing 62 is driven to roll along the length direction of the pilot hole 53.Further, stand stretch compensation device is also wrapped
C-shaped supporting frame 9 is included, the fulcrum component 6 is supported in the C-shaped supporting frame 9, and the C-shaped supporting frame 9 is used for and bending machine
Underbeam connection, can easily change the position of fulcrum component using rolling bearing, reduce the working face of rolling bearing and support frame
Between frictional force.
Specifically, fixing seat is fixed on the side plate of bending machine by hexagon socket head cap screw, and graduated scale is by straight pin and admittedly
Reservation connection, also, graduated scale can be swung in perpendicular around straight pin, and the scale on graduated scale is used to indicate fulcrum group
Mobile base can be locked or be unclamped to pilot hole on the moving distance of part, Mobile base and graduated scale by hexagon socket head cap screw grafting.
Stand stretch compensation device further includes press component 7, and the upper end of the press component 7 is for the side plate with bending machine
Connection, the lower end of the press component 7 abuts the second end so that the lever assembly 5 with the second end of the lever assembly 5
Always there is the trend moved downward, to improve the job stability of the stand stretch compensation device.
In the present embodiment, the press component 7 include positioning seat 71 and vertical type spring 72, the positioning seat 71 be used for
The side plate of bending machine connects, and the upper end of the spring 72 is connect with the positioning seat 71, the lower end of the spring 72 and the thick stick
The second end of bar assembly 5 abuts, and the pressing force between press component and lever assembly is provided by spring, so that the lever assembly
Second end remains downtrend.
In the present embodiment, positioning seat is that L-type limits angle bar, and the side of L-type limit angle bar is fixed on by hexagon socket head cap screw
On the side plate of bending machine, which limits the other side of angle bar and the upper end of spring and connects, to simplify the structure of whole device, and
And settable one guide groove extended along the vertical direction on the limit angle bar, hexagon socket head cap screw pass through the side of the guide groove and bending machine
Plate connection, which can finely tune along the vertical direction, to improve the versatility of stand stretch compensation device.
Certainly, in other embodiments, press component may include fixed part and pars contractilis that can be mobile relative to fixed part,
The connection of the side plate of the fixed part and bending machine, the end of the pars contractilis are abutted with the second end of lever assembly, and press component can be
Oil cylinder, cylinder or gas spring.
Stand stretch compensation device further includes the adjusting being connected between the lever assembly 5 and the grating reading head 10
Component 8, the grating reading head 10 are located at the lower section of the second end of the lever assembly 5, and the adjusting component 8 is for adjusting institute
State the second end of grating reading head 10 and the lever assembly 5 in the vertical direction at a distance from.
Specifically, the component 8 that adjusts includes the first oscillating bearing 81 from top to bottom set gradually, connecting column 82, the
Two oscillating bearings 83, first oscillating bearing 81 are connect with the second end of the lever assembly 5, the second joint bearing 83
It is connect with the grating reading head 10, first oscillating bearing 81, the connecting column 82, the second joint bearing 83 are successively
It is threadedly coupled, so set, the distance up and down between two oscillating bearings of adjustment can be facilitated, and then adjusts grating reading head and thick stick
The distance of the second end of bar assembly in the vertical direction improves stand stretch compensation device to adapt to the type of different bending machines
Versatility.
In the present embodiment, the first oscillating bearing is mounted on the second end of graduated scale, is connected to the first oscillating bearing and second
It is hexagonal iron stud between oscillating bearing, the oscillating bearing at hexagonal iron stud and both ends is by nut check and saves certain
Fastening force, second joint bearing are fixed on oscillating bearing mounting blocks by outer-hexagonal bolt, oscillating bearing mounting blocks eventually by
It is bolted grating reading head.
In other embodiments, adjusting component may include fixed part and pars contractilis that can be mobile relative to fixed part, this is solid
The one end for determining portion and graduated scale connects, and the end of the pars contractilis connect with grating reading head, adjusting component can be oil cylinder, cylinder or
Gas spring.
Fig. 2 is the first schematic diagram of bending machine provided in an embodiment of the present invention, and Fig. 3 is bending provided in an embodiment of the present invention
Second schematic diagram of machine, Fig. 4 are the third schematic diagram of bending machine provided in an embodiment of the present invention, and Fig. 5 is that existing bending machine is in
Schematic diagram under non-working condition, Fig. 6 are that existing bending machine is in the schematic diagram under use state.
Referring to shown in Fig. 2 to Fig. 6, the another object of the present embodiment is to provide a kind of bending machine, which includes side
Plate, upper beam 3, underbeam 4, scale grating 11, and stand stretch compensation device 100 as described above, the stand stretch compensation
The first end of the lever assembly 5 of device 100 is connect with the side plate,
The upper beam 3 and the underbeam 4 are spaced setting along the vertical direction, and the scale grating 11 is connect with the upper beam 3,
The fulcrum component 6 of the stand stretch compensation device 100 is connect with the underbeam 4, and the scale grating 11 is read with the grating
Several 10 opposite.
Further, the side plate includes the first side plate 1 and the second side plate of horizontally spaced setting, the rack
Deflection compensation device 100 is two, two stand stretch compensation devices 100 and first side plate 1 and described second side
Plate is arranged in a one-to-one correspondence.
In the present embodiment, stand stretch compensation device is mounted between upper beam and C-shaped supporting frame, wherein fixing seat and L-type
Limit angle bar is mounted on the side plate of bending machine, and scale grating is mounted on upper beam, and grating reading head is mounted on stand stretch benefit
It repays on device, C-shaped supporting frame is mounted on underbeam.
During bending machine treats bending workpieces bending, deformation occurs for underbeam, C-shaped supporting frame in bending process not
Deformation occurs, that is, underbeam and C-shaped supporting frame do not strain, and C-shaped supporting frame is independent relative to side plate.Stand stretch is mended
It repays in device, since spring is downwardly against graduated scale, the position of rolling bearing is constant, as the fulcrum of lever assembly, bending
Cheng Zhong, the upward deformation of side plate, synchronous drive fixing seat move upwards, and rolling bearing is fixed, according to lever principle, fulcrum
Right side integrally moves downward, and grating reading head offsets downward set distance, and therefore, upper beam, which moves downward the set distance, can just make
And the scale grating of upper beam connection reaches at the position of setting value corresponding with the set distance, therefore stand stretch compensation device
Corresponding compensation has been carried out to the bending error due to caused by side plate.
The beneficial effect of the bending machine compared with the prior art, with above-mentioned stand stretch compensation device compared to existing skill
The beneficial effect of art is identical, and details are not described herein again.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of stand stretch compensation device, which is characterized in that including fulcrum component and lever assembly；
The lever assembly is flexibly connected with the fulcrum component and can carry out lever pendulum by fulcrum of the fulcrum component
It is dynamic；
For the first end of the lever assembly for connecting with the side plate of bending machine, the second end of the lever assembly is connected with grating
Reading head, the fulcrum component with the underbeam of bending machine for connecting.
2. stand stretch compensation device according to claim 1, which is characterized in that the lever assembly include fixing seat and
With the graduated scale of fixing seat rotation connection；
The fixing seat with the side plate of bending machine for connecting；
The graduated scale is equipped with the pilot hole extended along the length direction of the graduated scale, the fulcrum component and the guiding
It hole grafting and can be moved along the length direction of the pilot hole.
3. stand stretch compensation device according to claim 2, which is characterized in that the fulcrum component include Mobile base and
With the rolling bearing of Mobile base pivot joint；
The rolling bearing is used to connect with the underbeam of bending machine；
It the Mobile base and the pilot hole grafting and is able to drive the rolling bearing and is rolled along the length direction of the pilot hole
It is dynamic.
4. stand stretch compensation device according to claim 1, which is characterized in that further include press component；
The upper end of the press component with the side plate of bending machine for connecting, the lower end of the press component and the lever assembly
Second end abut so that the second end of the lever assembly has the trend moved downward always.
5. stand stretch compensation device according to claim 4, which is characterized in that the press component include positioning seat and
Vertical type spring；
The positioning seat with the side plate of bending machine for connecting, and the upper end of the spring is connect with the positioning seat, the spring
Lower end abutted with the second end of the lever assembly.
6. stand stretch compensation device according to claim 1, which is characterized in that further include being connected to the lever assembly
Adjusting component between the grating reading head；
The grating reading head is located at the lower section of the second end of the lever assembly, and the adjusting component is for adjusting the grating
The second end of reading head and the lever assembly in the vertical direction at a distance from.
7. stand stretch compensation device according to claim 6, which is characterized in that the adjusting component includes from top to bottom
The first oscillating bearing, connecting column, the second joint bearing set gradually；
First oscillating bearing is connect with the second end of the lever assembly；
The second joint bearing is connect with the grating reading head；
First oscillating bearing, the connecting column, the second joint bearing are successively threadedly coupled.
8. stand stretch compensation device according to claim 1, which is characterized in that it further include C-shaped supporting frame, the fulcrum
Modular support is in the C-shaped supporting frame；
The C-shaped supporting frame with the underbeam of bending machine for connecting.
9. a kind of bending machine, which is characterized in that including side plate, upper beam, underbeam, scale grating, and as appointed in claim 1-8
Stand stretch compensation device described in one；
The first end of the lever assembly of the stand stretch compensation device is connect with the side plate；
The upper beam and the underbeam are spaced setting along the vertical direction, and the scale grating is connect with the upper beam, the rack
The fulcrum component of deflection compensation device is connect with the underbeam, and the scale grating is opposite with the grating reading head.
10. bending machine according to claim 9, which is characterized in that the side plate includes horizontally spaced setting
First side plate and the second side plate；
The stand stretch compensation device is two, two stand stretch compensation devices and first side plate and described the
Two side plates are arranged in a one-to-one correspondence.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710296448.6A CN106890871B (en) | 2017-04-28 | 2017-04-28 | Stand stretch compensation device and bending machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710296448.6A CN106890871B (en) | 2017-04-28 | 2017-04-28 | Stand stretch compensation device and bending machine |
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| CN106890871B true CN106890871B (en) | 2019-01-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109926478B (en) * | 2019-04-12 | 2024-05-10 | 扬州汉智数控机械有限公司 | Main transmission structure of electric servo bending center L-shaped frame |
| CN112275852B (en) * | 2020-10-10 | 2021-11-30 | 南京云上自动化科技有限公司 | Full-automatic two-way flanging machine precision compensation mechanism |
| CN112326410B (en) * | 2020-11-02 | 2021-10-26 | 燕山大学 | Device for eliminating deformation interference of testing machine frame |
| CN113305250B (en) * | 2021-05-24 | 2022-02-25 | 荣成华东锻压机床股份有限公司 | Multi-station precision forging press |
| CN113290188B (en) * | 2021-05-24 | 2022-01-28 | 荣成华东锻压机床股份有限公司 | Lever type forging force automatic regulating and controlling device and method for forging press |
| EP4140611A1 (en) * | 2021-08-23 | 2023-03-01 | Bystronic Laser AG | Bending machine, in particular bending press, with a length measuring system |
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| CN106890871A (en) | 2017-06-27 |
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