CN105436255B - Without amount of deflection workbench - Google Patents
Without amount of deflection workbench Download PDFInfo
- Publication number
- CN105436255B CN105436255B CN201510877355.3A CN201510877355A CN105436255B CN 105436255 B CN105436255 B CN 105436255B CN 201510877355 A CN201510877355 A CN 201510877355A CN 105436255 B CN105436255 B CN 105436255B
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- China
- Prior art keywords
- hydraulic
- bending
- switch valve
- oil
- hydraulic cylinder
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- 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
-
- 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
- B21D37/04—Movable or exchangeable mountings for tools
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
No amount of deflection workbench provided by the invention includes upper table, lower table, upper drive mechanism, lower drive mechanism；Upper drive mechanism includes upper hydraulic device, upper hydraulic energy storage device, and lower drive mechanism includes lower hydraulic device, lower hydraulic energy storage device；Upper hydraulic device includes upper hydraulic cylinder group and upper switch valve group, and lower hydraulic device includes lower hydraulic cylinder group and lower switch valve group, and upper switch valve group, lower switch valve group respectively control upper hydraulic cylinder group, lower hydraulic cylinder group.The deformation that deformation curve generates when the present invention is not necessarily to deform workbench to obtain approximate bending come lower table stress upper when compensating bending, corresponding two switch valves, which need to only be closed, can complete bending preparation, bending time has been saved, production efficiency is greatly improved；And the bending power as suffered by bending part in bending region is equal, so that the bending angle of bending part will not generate variation, avoids the generation of the bending line bending phenomenon of bending part.
Description
Technical field
The present invention relates to processing equipment field more particularly to the workbench of bending machine.
Background technique
When industry is done in progress bending, can upper mold be set on upper table, lower die, upper table are set on lower table
It pushes, makes the workpiece stress and bending between upper and lower mould, power suffered by workpiece, which can react to lower table, to be made to work up and down
Platform deforms (amount of deflection), makes workpiece discontinuity, leads to the angle narrowing toward each end of workpiece bending and broad in the middle, and the folding of workpiece
The curved radian that intermediate recess can be generated because of the deformation of upper lower table, influences the precision and shape of bending workpieces.
To solve the above problems, traditional bending machine keeps its one centre of generation high by two using the height for adjusting upper die clamper
The low radian in side, and lower table then uses multiple groups wedge block, makes to reach different between wedge block group by adjusting wedge block
Highly, three oil cylinders are set below lower table, by making the modes such as lower table deformation that lower table be made to generate one with oil cylinder
The low radian in a approximate intermediate high both sides, the change generated by this default radian come lower table stress upper when offsetting bending
Shape.But such method one is pretty troublesome and can not be up to being completely counterbalanced by upper lower table to adjust upper mold or lower table wedge block
Deformation, and can not have different bending conditions with regard to die clamper in de-regulation under because wanting the Workpiece length of bending and thickness difference
The such production efficiency of mould wedge block is too low, time-consuming too many, and needs veteran bending worker to operate.
Summary of the invention
In view of the above-mentioned problems, no amount of deflection workbench provided by the invention includes upper table, lower table, upper driving machine
Structure, lower drive mechanism, upper table lower section are equipped with upper die clamper, are equipped with lower mould clamping device above lower table；Upper drive mechanism peace
Between upper table and bending machine frame upper end, lower drive mechanism is mounted between lower table and bending rack lower end,
It respectively drives upper table and lower table is close to each other；The upper drive mechanism includes upper hydraulic device, upper hydraulic energy storage device,
The lower drive mechanism includes lower hydraulic device, lower hydraulic energy storage device, the upper hydraulic energy storage device, lower hydraulic energy storage device respectively with
Upper hydraulic device, the connection of lower hydraulic device；The upper hydraulic device includes upper hydraulic cylinder group and upper switch valve group, hydraulic under described
Device includes lower hydraulic cylinder group and lower switch valve group, the upper switch valve group, lower switch valve group be separately mounted to hydraulic cylinder group,
In the oil circuit of lower hydraulic cylinder group, upper hydraulic cylinder group, lower hydraulic cylinder group are respectively controlled.
Preferably, the upper hydraulic cylinder group includes that multiple oil circuits are cascaded and are evenly distributed on above upper table
The both ends of down pressing oil cylinder, the upper hydraulic cylinder group are respectively communicated with hydraulic energy storage device；The upper switch valve group includes multiple switch
Valve, the multiple switch valve are respectively arranged in the oil circuit between down pressing oil cylinder and between upper hydraulic cylinder group and hydraulic energy storage device.
Further, the lower hydraulic cylinder group includes that multiple oil circuits are cascaded and are evenly distributed below lower table
Upper oil-lifting jar, the both ends of the lower hydraulic cylinder group are respectively communicated with lower hydraulic energy storage device；The lower switch valve group includes multiple opens
Valve is closed, the multiple switch valve is respectively arranged in the oil circuit between oil-lifting jar and between lower hydraulic cylinder group and hydraulic energy storage device
In.
Preferably, the down pressing oil cylinder and upper oil-lifting jar use ram cylinder.
Preferably, the down pressing oil cylinder is identical with the quantity of upper oil-lifting jar.
Deformation curve is when the present invention is without making lower table deformation to obtain approximate bending come above and below when compensating bending
Workbench stress and the deformation generated, need to only close corresponding two switch valves can complete bending preparation, save bending
Time substantially increases production efficiency；And the bending power as suffered by bending part in bending region is equal, so that folding
The bending angle of comer pieces will not generate variation, avoid the generation of the bending line bending phenomenon of bending part.
Detailed description of the invention
Fig. 1 is no amount of deflection Working table structure schematic diagram.
Specific embodiment
In order to facilitate the understanding of those skilled in the art, being carried out below in conjunction with attached drawing and embodiment to the present invention further
Detailed description.
It include as shown in Figure 1 upper table 1, lower table 2, upper drive mechanism 3, lower drive mechanism 4 without amount of deflection workbench,
It is equipped with upper die clamper 11 below upper table 1, is equipped with lower mould clamping device 21 above lower table 2；Upper drive mechanism 3 is mounted on work
Make between platform 1 and bending machine frame upper end, lower drive mechanism 4 is mounted between lower table 2 and bending rack lower end, is driven respectively
Dynamic upper table 1 and lower table 2 are close to each other；Upper drive mechanism 3 includes upper hydraulic device 31 and connected to it hydraulic
Accumulator 32;Lower drive mechanism 4 includes lower hydraulic device 41 and lower hydraulic energy storage device 42 connected to it；Upper hydraulic device 31 wraps
Hydraulic cylinder group 311 and upper switch valve group 312 are included, lower hydraulic device 41 includes lower hydraulic cylinder group 411 and lower switch valve group
412, upper switch valve group 312, lower switch valve group 412 are separately mounted in the oil circuit of hydraulic cylinder group 311, lower hydraulic cylinder group 411,
Upper hydraulic cylinder group, lower hydraulic cylinder group are respectively controlled.Upper hydraulic cylinder group 311 includes that 17 oil circuits are cascaded simultaneously uniformly
The both ends of the ram cylinder being distributed in above upper table, upper hydraulic cylinder group 311 are respectively communicated with hydraulic energy storage device 32；On open
Closing valve group 312 includes 34 switch valves, is respectively arranged between the ram cylinder in hydraulic cylinder group 311 and upper hydraulic cylinder
In oil circuit between group 311 and hydraulic energy storage device 32.Lower hydraulic cylinder group 411, the structure of lower switch valve group 412 and upper hydraulic cylinder group
311 and identical by upper switch valve group 312, it is cascaded including 17 oil circuits and is evenly distributed on the column below lower table
The specification of plug oil cylinder, above-mentioned ram cylinder is completely the same.
When closing all switch valves, the hydraulic oil in all ram cylinders is not connected to, then with the uncompensated bending of tradition
Machine is the same, does not have compensating action.When the bending length of bending workpieces 5 is less than workbench length, as shown in Figure 1, working as flex area
When domain is between A, B, then switch valve of the upper lower table near bending region both ends is controlled by system and closed, rest switch
Valve is all turned on, then each ram cylinder between A, B in region is to be connected to and plunger all except region between A, B
Formula oil cylinder is connected to hydraulic energy storage device, when bending, since all ram cylinders are connection, institute in region between A, B
With the pressure of the hydraulic oil between A, B in region in all ram cylinders is equal, and because of the rule of all ram cylinders
Lattice are consistent, so all ram cylinder stress are equal in upper lower table A, B area, that is to say, that bending workpieces 5 exist
Suffered bending power is equal in bending region, i.e. A, B area, guarantees the bending angle and shape of bending workpieces 5 with this
Unanimously.
When 5 length of bending workpieces is equal to workbench length, then the switch valve of upper lower table two sides is closed, remaining is opened
Valve is closed to open.
The above are specific implementations of the invention, and the description thereof is more specific and detailed, but it cannot be understood as
Limitations on the scope of the patent of the present invention.It should be pointed out that for those of ordinary skill in the art, not departing from this hair
Under the premise of bright design, various modifications and improvements can be made, these obvious alternative forms belong to of the invention
Protection scope.
Claims (2)
1. without amount of deflection workbench, including upper table, lower table, upper drive mechanism, lower drive mechanism, upper table lower section are set
There is upper die clamper, is equipped with lower mould clamping device above lower table；Upper drive mechanism is mounted on upper table and bending machine frame upper end
Between, lower drive mechanism is mounted between lower table and bending rack lower end, respectively drives upper table and lower table phase
It is mutually close；The upper drive mechanism includes upper hydraulic device, upper hydraulic energy storage device, the lower drive mechanism hydraulic dress under including
It sets, lower hydraulic energy storage device, the upper hydraulic energy storage device, lower hydraulic energy storage device are connect with upper hydraulic device, lower hydraulic device respectively；
It is characterized by: the upper hydraulic device includes upper hydraulic cylinder group and upper switch valve group, the lower hydraulic device is hydraulic under including
Cylinder group and lower switch valve group, the upper switch valve group, lower switch valve group are separately mounted to the oil of hydraulic cylinder group, lower hydraulic cylinder group
In road, upper hydraulic cylinder group, lower hydraulic cylinder group are respectively controlled；The upper hydraulic cylinder group includes that multiple oil circuits are cascaded
And it is evenly distributed on the down pressing oil cylinder above upper table, the both ends of the upper hydraulic cylinder group are respectively communicated with hydraulic energy storage device；
The upper switch valve group includes multiple switch valve, and the multiple switch valve is respectively arranged between down pressing oil cylinder and upper hydraulic cylinder group
In oil circuit between hydraulic energy storage device；The lower hydraulic cylinder group includes that multiple oil circuits are cascaded and are evenly distributed on lower work
Make the upper oil-lifting jar below platform, the both ends of the lower hydraulic cylinder group are respectively communicated with lower hydraulic energy storage device；The lower switch valve group packet
Include multiple switch valve, the multiple switch valve be respectively arranged between oil-lifting jar and lower hydraulic cylinder group and hydraulic energy storage device between
Oil circuit in；The down pressing oil cylinder is identical with the quantity of upper oil-lifting jar, and the down pressing oil cylinder and the specification of upper oil-lifting jar are complete
Unanimously.
2. without amount of deflection workbench described in foundation claim 1, it is characterised in that: the down pressing oil cylinder and upper oil-lifting jar use plunger
Formula oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877355.3A CN105436255B (en) | 2015-12-04 | 2015-12-04 | Without amount of deflection workbench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510877355.3A CN105436255B (en) | 2015-12-04 | 2015-12-04 | Without amount of deflection workbench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105436255A CN105436255A (en) | 2016-03-30 |
| CN105436255B true CN105436255B (en) | 2019-08-16 |
Family
ID=55547141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510877355.3A Expired - Fee Related CN105436255B (en) | 2015-12-04 | 2015-12-04 | Without amount of deflection workbench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105436255B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658671A (en) * | 2012-05-18 | 2012-09-12 | 张庆德 | Novel compensation mechanism for oil press |
| CN103008413A (en) * | 2012-11-22 | 2013-04-03 | 宝鸡金牛锻压机床有限责任公司 | Novel independent pressurization deflection compensation mechanism of bending machine |
| KR101264611B1 (en) * | 2012-05-16 | 2013-05-27 | 주식회사 현대알비 | Pipe press device |
| CN203331423U (en) * | 2013-05-28 | 2013-12-11 | 焦作市华科液压机械制造有限公司 | Large-scale half chord pipe forming press |
| CN203804000U (en) * | 2014-01-27 | 2014-09-03 | 南通锋利机床有限公司 | Multi-cylinder bending machine |
| CN205200247U (en) * | 2015-12-04 | 2016-05-04 | 惠州市超亿数控有限公司 | Do not have around degree workstation |
-
2015
- 2015-12-04 CN CN201510877355.3A patent/CN105436255B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101264611B1 (en) * | 2012-05-16 | 2013-05-27 | 주식회사 현대알비 | Pipe press device |
| CN102658671A (en) * | 2012-05-18 | 2012-09-12 | 张庆德 | Novel compensation mechanism for oil press |
| CN103008413A (en) * | 2012-11-22 | 2013-04-03 | 宝鸡金牛锻压机床有限责任公司 | Novel independent pressurization deflection compensation mechanism of bending machine |
| CN203331423U (en) * | 2013-05-28 | 2013-12-11 | 焦作市华科液压机械制造有限公司 | Large-scale half chord pipe forming press |
| CN203804000U (en) * | 2014-01-27 | 2014-09-03 | 南通锋利机床有限公司 | Multi-cylinder bending machine |
| CN205200247U (en) * | 2015-12-04 | 2016-05-04 | 惠州市超亿数控有限公司 | Do not have around degree workstation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105436255A (en) | 2016-03-30 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190816 Termination date: 20191204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |