CN105436255A - Winding-degree-free workbench - Google Patents
Winding-degree-free workbench Download PDFInfo
- Publication number
- CN105436255A CN105436255A CN201510877355.3A CN201510877355A CN105436255A CN 105436255 A CN105436255 A CN 105436255A CN 201510877355 A CN201510877355 A CN 201510877355A CN 105436255 A CN105436255 A CN 105436255A
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- CN
- China
- Prior art keywords
- hydraulic cylinder
- bending
- hydraulic
- switch valve
- cylinder group
- 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
Abstract
The invention provides a winding-degree-free workbench which comprises an upper workbench body, a lower workbench body, an upper drive mechanism and a lower drive mechanism. The upper drive mechanism comprises an upper hydraulic device and an upper hydraulic energy accumulator. The lower drive mechanism comprises a lower hydraulic device and a lower hydraulic energy accumulator. The upper hydraulic device comprises an upper hydraulic cylinder set and an upper switching valve set. The lower hydraulic device comprises a lower hydraulic cylinder set and a lower switching valve set. The upper hydraulic cylinder set and the lower hydraulic cylinder set are controlled by the upper switching valve set and the lower switching valve set respectively. The manner that the workbench is deformed to obtain an approximate deformation curve during bending so as to offset deformation generated by stress of the upper workbench body and the lower workbench body during bending is not needed, bending preparing can be finished only by closing two corresponding switching valves, bending preparing time is shortened, and production efficiency is greatly improved. As the bending force borne by bending pieces in a bending area is equal, the bending angle of the bending pieces cannot change, and the bending lines of the bending pieces are prevented from being bent.
Description
Technical field
The present invention relates to process equipment field, particularly relate to the workbench of bender.
Background technology
When carrying out bending and doing industry, patrix can be set on upper table, lower table arranges counterdie, upper table presses down, and make the workpiece between upper and lower mould stressed and bending, the power suffered by workpiece can react to lower work platform makes lower work platform deform (winding degree), make workpiece discontinuity, cause the angle narrowing toward each end of workpiece bending and broad in the middle, and the bending of workpiece can produce umbilicate radian because the distortion of lower work platform, affects precision and the shape of bending workpieces.
For solving the problem, traditional bender adopts and regulates the height of upper die clamper to make it produce the low radian in high both sides, a centre, lower table then adopts and organizes wedge more, make to reach different height between wedge group by regulating wedge, three oil cylinders are established below lower table, by make with oil cylinder the modes such as lower table distortion make lower table produce one approximate in the middle of the low radian in high both sides, the distortion of lower work platform stressed generation when offsetting bending by this default radian.But such method one regulate patrix or lower table wedge pretty troublesome and can not reach and offset the distortion of lower work platform completely; and can not have because wanting the Workpiece length of bending different with thickness different bending condition just go to regulate upper die clamper and the such production efficiency of counterdie wedge too low; too much consuming time, and need veteran bending workman to operate.
Summary of the invention
For the problems referred to above, provided by the inventionly comprise upper table, lower table, upper driving mechanism, lower driving mechanism without winding degree workbench, be provided with die clamper below upper table, above lower table, be provided with lower mould clamping device; Upper driving mechanism is arranged between upper table and bender frame upper end, and lower driving mechanism is arranged between lower table and bending frame lower end, respectively drive upper table and lower table close to each other; Described upper driving mechanism comprises hydraulic means, upper hydraulic energy storage device, and described lower driving mechanism comprises lower hydraulic means, lower hydraulic energy storage device, and described upper hydraulic energy storage device, lower hydraulic energy storage device are connected with upper hydraulic means, lower hydraulic means respectively; Described upper hydraulic means comprises hydraulic cylinder group and upper switch valve group, described lower hydraulic means comprises lower hydraulic cylinder group and lower switch valve group, described upper switch valve group, lower switch valve group are arranged in the oil circuit of hydraulic cylinder group, lower hydraulic cylinder group respectively, control respectively upper hydraulic cylinder group, lower hydraulic cylinder group.
Preferably, described upper hydraulic cylinder group comprises multiple oil circuit and is cascaded and is evenly distributed on the down pressing oil cylinder above upper table, and the two ends of described upper hydraulic cylinder group are communicated with hydraulic energy storage device respectively; Described upper switch valve group comprises multiple switch valve, and described multiple switch valve is installed in the oil circuit between down pressing oil cylinder and between upper hydraulic cylinder group and hydraulic energy storage device respectively.
Further, described lower hydraulic cylinder group comprises multiple oil circuit and is cascaded and is evenly distributed on the upper oil-lifting jar below lower table, and the two ends of described lower hydraulic cylinder group are communicated with lower hydraulic energy storage device respectively; Described lower switch valve group comprises multiple switch valve, and described multiple switch valve is installed in the oil circuit between oil-lifting jar and between lower hydraulic cylinder group and hydraulic energy storage device respectively.
Preferably, described down pressing oil cylinder and upper oil-lifting jar adopt ram cylinder.
Preferably, described down pressing oil cylinder is identical with the quantity of upper oil-lifting jar.
Lower work the platform stressed and distortion that produces when deformation curve is to compensate bending when the present invention is without the need to making lower work platform be out of shape to obtain the bending be similar to, only need close corresponding two switch valves and just can complete bending preparation, save bending time, substantially increase production efficiency; And due to the bending power in bending region suffered by bending part be equal, the bending angle of bending part can not be changed, and the bending line avoiding bending part bends the generation of existing picture.
Accompanying drawing explanation
Fig. 1 is without winding degree Working table structure schematic diagram.
Detailed description of the invention
The present invention to be explained in further detail below in conjunction with accompanying drawing and embodiment for the ease of it will be appreciated by those skilled in the art that.
Comprise upper table 1, lower table 2, upper driving mechanism 3, lower driving mechanism 4 without winding degree workbench as shown in Figure 1, below upper table 1, be provided with die clamper 11, above lower table 2, be provided with lower mould clamping device 21; Upper driving mechanism 3 is arranged between upper table 1 and bender frame upper end, and lower driving mechanism 4 is arranged between lower table 2 and bending frame lower end, respectively drive upper table 1 and lower table 2 close to each other; Upper driving mechanism 3 comprises hydraulic means 31 and connected upper hydraulic energy storage device 32; Lower driving mechanism 4 comprises lower hydraulic means 41 and connected lower hydraulic energy storage device 42; Upper hydraulic means 31 comprises hydraulic cylinder group 311 and by upper switch valve group 312, lower hydraulic means 41 comprises lower hydraulic cylinder group 411 and lower switch valve group 412, upper switch valve group 312, lower switch valve group 412 are arranged in the oil circuit of hydraulic cylinder group 311, lower hydraulic cylinder group 411 respectively, control respectively upper hydraulic cylinder group, lower hydraulic cylinder group.Upper hydraulic cylinder group 311 comprises 17 oil circuits and is cascaded and is evenly distributed on the ram cylinder above upper table, and the two ends of upper hydraulic cylinder group 311 are communicated with hydraulic energy storage device 32 respectively; Upper switch valve group 312 comprises 34 switch valves, is installed on respectively in the oil circuit between the ram cylinder in hydraulic cylinder group 311 and between upper hydraulic cylinder group 311 and hydraulic energy storage device 32.The structure of lower hydraulic cylinder group 411, lower switch valve group 412 and upper hydraulic cylinder group 311 and identical by upper switch valve group 312, comprise 17 oil circuits be cascaded and be evenly distributed on the ram cylinder below lower table, the specification of above-mentioned ram cylinder is completely the same.
When closing all switch valves, the hydraulic oil in all ram cylinders is not communicated with, then bender uncompensated with tradition 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, when bending region is A, time between B, then closed near the switch valve at two ends, bending region by Systematical control lower work platform, rest switch valve is all opened, then A, each ram cylinder between B in region is communicated with and A, ram cylinders all outside region between B is communicated with hydraulic energy storage device, when bending, due to A, between B, in region, all ram cylinders are communicated with, so, A, the pressure of the hydraulic oil between B in region in all ram cylinders is equal, specification again because of all ram cylinders is consistent, so lower work platform A, in B region, all ram cylinders are stressed is equal, that is bending workpieces 5 is in bending region, i.e. A, bending power suffered in B region is equal, ensure that the bending angle of bending workpieces 5 is consistent with shape with this.
When bending workpieces 5 length equals workbench length, then closed by the switch valve of lower work platform both sides, rest switch valve is opened.
Be more than specific implementation of the present invention, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these apparent replacement forms all belong to protection scope of the present invention.
Claims (5)
1., without winding degree workbench, comprise upper table, lower table, upper driving mechanism, lower driving mechanism, be provided with die clamper below upper table, above lower table, be provided with lower mould clamping device; Upper driving mechanism is arranged between upper table and bender frame upper end, and lower driving mechanism is arranged between lower table and bending frame lower end, respectively drive upper table and lower table close to each other; Described upper driving mechanism comprises hydraulic means, upper hydraulic energy storage device, and described lower driving mechanism comprises lower hydraulic means, lower hydraulic energy storage device, and described upper hydraulic energy storage device, lower hydraulic energy storage device are connected with upper hydraulic means, lower hydraulic means respectively; It is characterized in that: described upper hydraulic means comprises hydraulic cylinder group and upper switch valve group, described lower hydraulic means comprises lower hydraulic cylinder group and lower switch valve group, described upper switch valve group, lower switch valve group are arranged in the oil circuit of hydraulic cylinder group, lower hydraulic cylinder group respectively, control respectively upper hydraulic cylinder group, lower hydraulic cylinder group.
2. according to described in claim 1 without winding degree workbench, it is characterized in that: described upper hydraulic cylinder group comprises multiple oil circuit and is cascaded and is evenly distributed on the down pressing oil cylinder above upper table, and the two ends of described upper hydraulic cylinder group are communicated with hydraulic energy storage device respectively; Described upper switch valve group comprises multiple switch valve, and described multiple switch valve is installed in the oil circuit between down pressing oil cylinder and between upper hydraulic cylinder group and hydraulic energy storage device respectively.
3. according to described in claim 1 or 2 without winding degree workbench, it is characterized in that: described lower hydraulic cylinder group comprises multiple oil circuit and is cascaded and is evenly distributed on the upper oil-lifting jar below lower table, and the two ends of described lower hydraulic cylinder group are communicated with lower hydraulic energy storage device respectively; Described lower switch valve group comprises multiple switch valve, and described multiple switch valve is installed in the oil circuit between oil-lifting jar and between lower hydraulic cylinder group and hydraulic energy storage device respectively.
4. according to described in claim 3 without winding degree workbench, it is characterized in that: described down pressing oil cylinder and upper oil-lifting jar employing ram cylinder.
5. according to described in claim 3 without winding degree workbench, it is characterized in that: described down pressing oil cylinder is identical with the quantity of upper oil-lifting jar.
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 true CN105436255A (en) | 2016-03-30 |
| CN105436255B 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 |
|---|---|
| CN105436255B (en) | 2019-08-16 |
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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 |