CN103785721A - Numerically-controlled metal-plate bending machine - Google Patents
Numerically-controlled metal-plate bending machine Download PDFInfo
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- CN103785721A CN103785721A CN201410002032.5A CN201410002032A CN103785721A CN 103785721 A CN103785721 A CN 103785721A CN 201410002032 A CN201410002032 A CN 201410002032A CN 103785721 A CN103785721 A CN 103785721A
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- workbench
- transition beam
- plate
- fuselage
- sliding block
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Abstract
The invention provides a numerically-controlled metal-plate bending machine. The numerically-controlled metal-plate bending machine comprises a machine body, driving oil cylinders, a slider, a workbench and a transition beam. Cylinder bodies of the driving oil cylinders are fixedly connected with the upper end of the front side of the machine body. The slider is arranged on the upper portion of the machine body, is movably connected with the machine body through a sliding pair I, and can move linearly along the up-down direction. The workbench is arranged at the lower end of the machine body, is movably connected with the machine body through a sliding pair II, and can move linearly along the up-down direction. The numerically-controlled metal-plate bending machine is characterized in that the transition beam at least includes an upper transition beam or a lower transition beam, and the upper transition beam is hinged to the slider, and the lower transition beam is hinged to the workbench. Compared with the prior art, the numerically-controlled metal-plate bending machine has the advantages that an independent compensation power source is not needed, production cost is remarkably reduced, and the bending machine is wide in load adaption range, good in retainability of bending accuracy, high in load bias resistance capability, green and environment friendly.
Description
Technical field
The present invention relates to sheet metal shaping manufacturing equipment field, more particularly to a kind of numerical control metal plate material bender.
Background technology
Bender is in sheet metal bending process is carried out, in the presence of bending load so that the sliding block and workbench of bender produce elastic deformation, and harmful effect is produced to bending precision.Due to the elastic deformation of sliding block and workbench, cause bending angle uneven along mold notch directional spreding, the bending angle of both sides is bigger than normal, the bending angle at middle part is less than normal.
Existing bender structural representation as shown in Figure 4,5, is made up of fuselage 110, sliding block 210, driving hydraulic cylinder 310 and workbench 410.Point of force application on sliding block and workbench is located at bender both sides, its mechanical model can with it is abstract be long girder construction that two end points fix support, as shown in Figure 6.This structure has the advantages that simple in construction, low cost of manufacture, is easily assembled, but poor rigidity, and elastic deformation is big under the effect of bending load, processes part and is difficult to meet accuracy test standard.At present, reducing influence of this elastic deformation to bending precision generally has following two measures：
（1）Physical dimension is increased, to improve the rigidity of machine tool：Increase the sheet metal thickness of fuselage, sliding block and workbench, the rigidity of lathe can be effectively improved.It is totally unfavorable to improving the competitiveness of product in market but this method can largely increase the weight of lathe, improve the cost of Machine Manufacture；
（2）Using deflection compensation measure, elastic deformation is offset：Pass through the power sources such as hydraulic cylinder, to sliding block and workbench be previously applied one with service load is in opposite direction, a sizable balancing force, so that sliding block and workbench produce the elastic deformation of advance outwardly convex, the elastic deformation under service load effect is offset with this.But there is following deficiency in this indemnifying measure：1）Lower deflection deformation can only be acted on the load of some particular size to compensate, when bending load changes（Bending thickness of slab, the change of bending sheets width）When do not have compensating action；2）Independent compensation power source is needed, manufacturing cost is added；3）Offset placed load can not be compensated.
For machine for press-bending metal sheet, the deflection deformation of sliding block and workbench can't be fully compensated by prior art.In addition, the consideration in terms of for cost, complete deflection compensation be it is uneconomical, it is also unnecessary.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of machine for press-bending metal sheet, and the technical scheme that it is used is as follows：
A kind of numerical control metal plate material bender, including fuselage, driving oil cylinder, sliding block, workbench, transition beam, the cylinder body of driving oil cylinder are fixedly connected with the upper end on front side of fuselage；Sliding block is arranged on the top of fuselage, is flexibly connected by sliding pair one with fuselage, and sliding block can move along a straight line along the vertical direction；Workbench is arranged on fuselage lower end, and workbench is flexibly connected by sliding pair two with fuselage, and workbench moves along a straight line along the vertical direction；It is characterized in that transition beam at least includes a upper transition beam or a lower transition beam being hinged with workbench being hinged with sliding block.
The upper transition beam is made up of plate one and plate two, and plate one is alternate with plate two to be arranged in parallel and be fixedly connected at two ends, is fixedly connected above the two ends of transition beam with driving the lower end of oil cylinder piston；Upper transition beam is hinged by jointed shaft one and sliding block, and driving oil cylinder does the motion of above-below direction by the driving indirect belt movable slider to upper transition beam.
The lower transition beam is made up of plate three and plate four, plate three and the alternate lower end for be arrangeding in parallel and being fixedly connected on fuselage of plate four；Workbench is made up of worktable panel and workbench riser, and worktable panel is horizontally fixed on the top of workbench riser；Workbench riser is located between the plate three of lower transition beam and plate four, is hinged at jointed shaft two.
Ability of the present invention with extremely strong resistance deflection deformation, the deflection deformation of sliding block and workbench on the premise of manufacturing cost is not increased substantially, can significantly be reduced, be fully able to meet the required precision of processing part.Compared with prior art, the invention has the advantages that：1）Without independent compensation power source, manufacturing cost is greatly lowered；2）To the wide adaptation range of load, when magnitude of load changes（Sheet metal thickness, width change）When, the retentivity of bending precision is good；3）Anti- load biasing ability is strong.The present invention complies fully with green, the design concept of energy-conservation, and industrialization prospect is good, with fabulous Social benefit and economic benefit.
Brief description of the drawings
Fig. 1 is the structural upright schematic diagram in 45 ° of directions of the present invention.
Fig. 2 is the structural front view of the present invention.
Fig. 3 is Fig. 2 left view.
Fig. 4 is the structural representation of prior art.
Fig. 5 is Fig. 4 left view.
Fig. 6 is the fundamental diagram of prior art.
Fig. 7 is the fundamental diagram of the present invention.
Fig. 8 is the Contrast on effect schematic diagram of the present invention and prior art.
Description of reference numerals：
1. the sliding pair two of 2 12. sliding pair of driving oil cylinder 3. sliding block, 4. worktable panel, 5. plate, one 6. plate, 2 7. plate, 3 8. plate, 4 9. workbench riser, 10. jointed shaft, one 11. jointed shaft of fuselage 2. 1
Q is bending load, and L1 is the distance between the point of force application of prior art, and L2 is the distance between the point of force application of the present invention, and d1 is the deflection deformation amount of prior art slider, and d2 is the deflection deformation amount of present invention slider.
Embodiment
Below in conjunction with the accompanying drawings, the present invention will be further described.
The bender of the present invention includes fuselage 1, driving oil cylinder 2, sliding block 3, workbench and transition beam composition, as shown in Figures 1 to 3.
The cylinder body of oil cylinder 2 is driven to be fixedly connected with the upper end of the front side of fuselage 1；Sliding block 3 is arranged on the top of fuselage, is flexibly connected by sliding pair 1 with fuselage, and sliding block 3 can move along a straight line along the vertical direction；Workbench is arranged on the lower end of fuselage 1, and workbench is flexibly connected by planar slide pair 13 with fuselage, and workbench moves along a straight line along the vertical direction.Transition beam at least includes a upper transition beam or a lower transition beam being hinged with workbench being hinged with sliding block 3.
Upper transition beam is made up of plate 1 and plate 26, and plate 1 is alternate with plate 26 to be arranged in parallel and be fixedly connected at two ends, is fixedly connected above the two ends of transition beam with driving the lower end of the piston of oil cylinder 2；Upper transition beam is hinged by jointed shaft 1 with sliding block 3, and driving oil cylinder 2 does the motion of above-below direction by the driving indirect belt movable slider 3 to upper transition beam；
Lower transition beam is made up of plate 37 and plate 48, plate 37 and the alternate lower end for be arrangeding in parallel and being fixedly connected on fuselage 1 of plate 48；Workbench is made up of worktable panel 4 and workbench riser 9, and worktable panel 4 is horizontally fixed on the top of workbench riser 9；Workbench riser 9 is located between the plate 37 of lower transition beam and plate 48, is hinged at jointed shaft 2 11.
The know-why for the lower transition beam that the upper transition beam that present invention slider is set is set with workbench is identical, illustrates technical scheme only by taking sliding block as an example herein.By upper transition beam by the point of force application on sliding block（Jointed shaft one）Shifted to centre position so that the distance between two application points diminishes.According to the present invention, sliding block can be reduced to long girder construction, support be fixed in the position of the centre of long beam two, as shown in Figure 7.From mechanics of materials knowledge, when two strong points are in middle a certain ad-hoc location, the deflection deformation of structure is minimum under the effect of uniform bending load, and the deflection deformation for the long girder construction fixed compared to two ends is much smaller.
The fundamental diagram of prior art is as shown in fig. 6, the distance between two points of force application is L1, the upward deflection deformation of the following generation of sliding block in the presence of Q, and deflection is d1.The fundamental diagram of the present invention produces upward deflection deformation, deflection is d2 as shown in fig. 7, distance between two application points is L2 in the presence of Q.The Contrast on effect schematic diagram of the present invention and prior art is as shown in figure 8, due to L2<L1, so d2<d1.
The present invention bender configuration aspects carried out it is great innovation it is simpler, exquisite there is provided a kind of structure, cost is lower, more easily manufactures, and precision is higher, can be effective against the bender of deflection deformation.Construction weight is being greatly reduced in the present invention, while reducing cost, additionally it is possible to the rigidity of bender is substantially improved.
Claims (3)
1. a kind of numerical control metal plate material bender, including fuselage, driving oil cylinder, sliding block, workbench, transition beam, the cylinder body of driving oil cylinder are fixedly connected with the upper end on front side of fuselage；Sliding block is arranged on the top of fuselage, is flexibly connected by sliding pair one with fuselage, and sliding block can move along a straight line along the vertical direction；Workbench is arranged on fuselage lower end, and workbench is flexibly connected by prismatic pair two with fuselage, and workbench moves along a straight line along the vertical direction；It is characterized in that transition beam at least includes a upper transition beam or a lower transition beam being hinged with workbench being hinged with sliding block.
2. a kind of numerical control metal plate material bender according to claim 1, the upper transition beam is made up of plate one and plate two, plate one is alternate with plate two to be arranged in parallel and is fixedly connected at two ends, is fixedly connected above the two ends of transition beam with driving the lower end of oil cylinder piston；Upper transition beam is hinged by jointed shaft one and sliding block, and driving oil cylinder does the motion of above-below direction by the driving indirect belt movable slider to upper transition beam.
3. a kind of numerical control metal plate material bender according to claim 1, the lower transition beam is made up of plate three and plate four, plate three and the alternate lower end for be arrangeding in parallel and being fixedly connected on fuselage of plate four；Workbench is made up of worktable panel and workbench riser, and worktable panel is horizontally fixed on the top of workbench riser；Workbench riser is located between the plate three of lower transition beam and plate four, is hinged at jointed shaft two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002032.5A CN103785721A (en) | 2014-01-03 | 2014-01-03 | Numerically-controlled metal-plate bending machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410002032.5A CN103785721A (en) | 2014-01-03 | 2014-01-03 | Numerically-controlled metal-plate bending machine |
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| Publication Number | Publication Date |
|---|---|
| CN103785721A true CN103785721A (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410002032.5A Pending CN103785721A (en) | 2014-01-03 | 2014-01-03 | Numerically-controlled metal-plate bending machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280632A (en) * | 2019-07-22 | 2019-09-27 | 南京邮电大学 | The mechanical full electric servo numerical control bender of high-speed overload based on composite drive |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003039116A (en) * | 2001-07-30 | 2003-02-12 | Amada Eng Center Co Ltd | Press brake |
| EP1769857A2 (en) * | 2005-09-29 | 2007-04-04 | CREA S.r.l. | Bending press with tool-holder table with reduced deformation |
| CN201543704U (en) * | 2009-11-12 | 2010-08-11 | 朱斌 | Deflection compensation mechanism of sliding block of numerical control torsion-axis synchronous hydraulic bending machine |
| CN203281716U (en) * | 2013-05-25 | 2013-11-13 | 海安县太洋油脂有限公司 | Sliding block device |
| CN203649070U (en) * | 2014-01-03 | 2014-06-18 | 南京邮电大学 | Numerically controlled metal plate bending machine |
-
2014
- 2014-01-03 CN CN201410002032.5A patent/CN103785721A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003039116A (en) * | 2001-07-30 | 2003-02-12 | Amada Eng Center Co Ltd | Press brake |
| EP1769857A2 (en) * | 2005-09-29 | 2007-04-04 | CREA S.r.l. | Bending press with tool-holder table with reduced deformation |
| CN201543704U (en) * | 2009-11-12 | 2010-08-11 | 朱斌 | Deflection compensation mechanism of sliding block of numerical control torsion-axis synchronous hydraulic bending machine |
| CN203281716U (en) * | 2013-05-25 | 2013-11-13 | 海安县太洋油脂有限公司 | Sliding block device |
| CN203649070U (en) * | 2014-01-03 | 2014-06-18 | 南京邮电大学 | Numerically controlled metal plate bending machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110280632A (en) * | 2019-07-22 | 2019-09-27 | 南京邮电大学 | The mechanical full electric servo numerical control bender of high-speed overload based on composite drive |
| CN110280632B (en) * | 2019-07-22 | 2024-03-26 | 南京邮电大学 | High-speed heavy-load mechanical all-electric servo numerical control bending machine based on compound drive |
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Application publication date: 20140514 |