CN103056217B - U-shaped girder cutting device - Google Patents
U-shaped girder cutting device Download PDFInfo
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- CN103056217B CN103056217B CN201310013509.5A CN201310013509A CN103056217B CN 103056217 B CN103056217 B CN 103056217B CN 201310013509 A CN201310013509 A CN 201310013509A CN 103056217 B CN103056217 B CN 103056217B
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- double end
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- shaped beam
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- 238000010008 shearing Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 10
- 210000001015 abdomen Anatomy 0.000 claims description 5
- 238000007373 indentation Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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- Shearing Machines (AREA)
Abstract
A U-shaped girder cutting device is applicable to machining of automotive chassis longitudinal girders and structurally comprises a base plate. A pre-cutting mechanism and a double-end cutting mechanism are mounted on the base plate. The pre-cutting mechanism comprises a pre-cutting frame. A pre-cutting hydraulic cylinder is mounted on the pre-cutting frame. A pre-cutting upper cutter is mounted at the lower end of the pre-cutting hydraulic cylinder. A pre-cutting lower cutter is mounted on a corresponding position below the pre-cutting frame. The double-end cutting mechanism comprises a left frame and a right frame which are independent of each other. The left frame and the right frame are provided with a first double-end cutting hydraulic cylinder and a second double-end cutting hydraulic cylinder respectively. A first double-end cutting upper cutter and a second double-end cutting upper cutter are mounted below the first double-end cutting hydraulic cylinder and the second double-end cutting hydraulic cylinder respectively. A left inner double-end cutting lower cutter and a right inner double-end cutting lower cutter are mounted on the left frame and the right frame respectively. The left frame and the right frame are connected to a left side plate and a right side plate respectively through pins and bolts. A left outer double-end cutting lower cutter and a right outer double-end cutting lower cutter are mounted on the left side plate and the right side plate respectively.
Description
Technical field
This programme relates to a kind of U-shaped beam shearing device, can be used for the processing of automobile chassis longeron, belongs to blanking units field.
Background technology
Along with the fast development of heavy-duty car industry and the enhancing of awareness of safety, increasing to U-shaped beam product consumption, shape of product required precision is more and more higher.U-shaped beam cold roll forming production technology is: uncoiling, comparatively flat, roll-forming, fixed ruler cutting, piling etc.The fixed ruler cutting mode of current employing generally has the modes such as model single-blade mistake is cut, sawing.The wrong incised notch point of model is that cutoff tool need configure according to product cross dimensions, need when cutting off different section sized products to change cutting off tool, cutter model is many, maintenance management inconvenience, use cost is high, and cross section quality after cutting off is poor, angle of easily collapsing, is out of shape, the defect such as tears, need artificial shaping toward contact, labour intensity is large; Sawing mode can adapt to the cut-out of various cross dimensions, but noise is large, and saw blade loss is fast, and sawing section burr is large, needs artificial removal.In addition, because produce stress in the process Shaped Steel inside of cold-bending molding technology processing, after cutting off, residual stress discharges at section part, causes the rear section wing limit of U-shaped beam to extend out, affects subsequent handling pan feeding time serious.
Summary of the invention
This programme is in order to solve the deficiency existed in known technology, and provide a kind of shearing area quality high, production efficiency is high, can adapt to a kind of shearing device of the U-shaped beam of different size fast.
This programme is achieved through the following technical solutions: a kind of U-shaped beam shearing device, is characterized in that it comprises base plate, installation pre-cutting Agency head shut-off mechanism separated by a distance on base plate; Described pre-cutting mechanism complete die-cut after on U-shaped beam outside of belly mid portion formed rectangular indentation;
Double end shut-off mechanism comprises and mutually keeps independently left frame and right frame, the first double end arranging the first double end cutting-off liquid cylinder pressure and driving thereof on left frame top cuts off upper slitter, left frame bottom correspondence arrange left inside double end cut off under cutter and left outside double end cut off under cutter; The second double end arranging the second double end cutting-off liquid cylinder pressure and driving thereof at right upper rack cuts off upper slitter, right frame lower correspondence arrange right inside double end cut off under cutter and right outside double end cut off under cutter;
The corner angle that the lower cutter of described left inside double end cut-out and right inside double end cut off lower edge is 90 °, and under left outside double end cut-out, cutter and right outside double end cut off the corner angle of lower edge is 87 °, and is ± 1 ° according to the U-shaped beam adjusting range of different size.
The concrete feature of this programme also has, and described first double end cut-out upper knife edge mouth-shaped is identical with U-shaped beam section left-half, and is rotated counterclockwise 10 ° around angular vertex of turning left; Second double end cut-out upper knife edge mouth-shaped is identical with U-shaped beam section right half part, and turns clockwise 10 ° around angular vertex of turning right.
Base plate is fixed with guide plate, and left frame and right frame are sliding with base plate under the guiding of guide plate joins; Outside left frame and right frame, be fixed with nut respectively, base plate arranges the movement realizing left frame and right frame with the screw rod of nut screw connection.
That left frame and right frame are fitted through pinned connection respectively and around the left plate of bearing pin pivotable and right plate, left plate and right plate are installed respectively left outside double end and cut off lower cutter and right outside double end cuts off lower cutter.
Left plate and right plate all have can by the L-type groove of U-shaped beam.
Left frame and right frame all have can by the L-type groove of U-shaped beam.
Pre-cutting mechanism comprises pre-cutting frame, pre-cutting frame is installed pre-cutting hydraulic cylinder, and pre-cutting upper slitter is installed in pre-cutting hydraulic cylinder lower end, and pre-cutting frame lower is positioned at correspondence position below pre-cutting upper slitter and installs cutter under pre-cutting.
Frame and right frame are arranged symmetrically with, and left inside double end cuts off lower cutter and left outside double end, and to cut off lower cutter position corresponding, and right inside double end cuts off lower cutter and right outside double end, and to cut off lower cutter position corresponding.
The beneficial effect of this programme is:
1, compared with prior art, cut-out is carried out at twice, breaks the whole up into parts, for the adjustment of follow-up cutting-tool angle with adapt to different U-shaped beam width and provide necessary condition.
2, cutting off is extend to zone line gradually from the open side edge of U-shaped beam, and angle of shear γ remain 10 ° constant, so it is little to cut off section burr, defects such as angle of collapsing can not being produced, be out of shape, tear.
3, stress is produced in the process Shaped Steel inside of cold-bending molding technology processing, in prior art, the lower nose angle degree in outside is consistent, and after cutting off, residual stress freely can discharge at section part, causes the rear section wing limit of U-shaped beam to extend out, and front section wing limit inside contracts, time serious, affect subsequent handling pan feeding.Under outside this programme, the corner angle of edge is less than U-shaped beam corner angle, is 87 °, cuts off masterpiece and made it cross curved 3 ° to the inside for outside aerofoil during cut-out, is improved so the rear aerofoil of cut-out extends out situation.This corner angle, according to U-shaped beam adjusting range ± 1 ° of different size, gets the small value when dehiscing serious, otherwise takes large values.Die-cut rear U-shaped beam, without the need to carrying out correction process, directly can enter next procedure and use.
If 4 U-shaped trammel lattice change, i.e. outside of belly change width, only need to rotate left and right screw rod, then nut drives left and right frame to move left and right inside guide plate on base plate, when the L-type slot pitch in left and right frame and side plate is from when mating with longeron width, namely, when left cut breaking mates with longeron width with the distance of right cut breaking, adjustment completes.Can adapt to the U-shaped beam of different size so fast, production efficiency is high; And tool category is few, be convenient to management, cost is low.
5, if desired change double end cutting off tool, only need demounting bolt, then left side plate around bearing pin Unscrew, can facilitate tool changing.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, this programme is further described.Fig. 1 is the front view of this programme; The left view of Tu2Shi Tu1Zhong pre-cutting mechanism; Fig. 3 is the right view of double end shut-off mechanism in Fig. 1; Fig. 4 is the isometric view of Fig. 3, and left plate is open mode, and Fig. 5 is the front view of cutting off tool, and Fig. 6 is the isometric view of Fig. 5, and Fig. 7 is the corner angle schematic diagram that left outside double end cuts off lower edge; Fig. 8 is the corner angle schematic diagram that left inside double end cuts off lower edge; Fig. 9 is the corner angle schematic diagram that right inside double end cuts off lower edge; Figure 10 is the corner angle schematic diagram that right outside double end cuts off lower edge.
In figure: 1-base plate; 2-pre-cutting mechanism; 3-double end shut-off mechanism; 4-pre-cutting hydraulic cylinder; 5-pre-cutting frame; 6-pre-cutting upper slitter; Cutter under 7-pre-cutting; 8-first double end cutting-off liquid cylinder pressure; 9-left frame; The right frame of 10-; 11-second double end cutting-off liquid cylinder pressure; 12-right plate; 13-second double end cuts off upper slitter; The right outside double end of 14-cuts off lower cutter; The right inside double end of 15-cuts off lower cutter; The left inside double end of 16-cuts off lower cutter; 17-first double end cuts off upper slitter; 18-left plate; The left outside double end of 19-cuts off lower cutter; 20-section bar; 21-screw rod; 22-nut; 23-bearing pin; 24-bolt; 25-guide plate, 26-L type groove.
Detailed description of the invention
As shown in Figure 1, a kind of U-shaped beam shearing device, it comprises base plate 1, installation pre-cutting mechanism 2 separated by a distance and double end shut-off mechanism 3 on base plate 1; Described pre-cutting mechanism 2 complete die-cut after on U-shaped beam outside of belly mid portion formed rectangular indentation; As shown in Figures 3 and 4, double end shut-off mechanism 3 comprises and mutually keeps independently left frame 9 and right frame 10, first double end cutting-off liquid cylinder pressure 8 is set on left frame 9 top and the first double end of driving cuts off upper slitter 17, left frame 9 bottom correspondence arrange left inside double end cut off under cutter 16 and left outside double end cut off under cutter 19; Second double end cutting-off liquid cylinder pressure 11 is set on right frame 10 top and the second double end of driving cuts off upper slitter 13, right frame 10 bottom correspondence arrange right inside double end cut off under cutter 15 and right outside double end cut off under cutter 14; As shown in Fig. 7 ~ 10, the corner angle β that the lower cutter 16 of left inside double end cut-out and right inside double end cut off lower cutter 15 cutting edge is 90 °, and under left outside double end cut-out, cutter 19 and right outside double end cut off the corner angle α of lower cutter 14 cutting edge is 87 °.
As shown in Figure 5, described first double end cuts off upper slitter 17 and the second double end cuts off upper slitter 13, and on its whole stroke, U-shaped beam opening direction or outside are always pointed in the summit of the angle of shear, and are always 10 °.Described first double end cut-out upper slitter 17 blade shape is identical with U-shaped beam section left-half, and is rotated counterclockwise 10 ° around angular vertex of turning left; Second double end cut-out upper slitter 13 blade shape is identical with U-shaped beam section right half part, and turns clockwise 10 ° around angular vertex of turning right.
As shown in Figures 3 and 4, base plate 1 is fixed with guide plate 25, left frame 9 and right frame 10 are sliding with base plate 1 under the guiding of guide plate 25 joins; Outside left frame 9 and right frame 10, be fixed with nut 22 respectively, base plate 1 arranges the movement that the screw rod 21 coordinated with nut 22 realizes left frame 9 and right frame 10.
Left frame 9 and right frame 10 are fitted through that bearing pin 23 is connected and around the left plate 18 of bearing pin 23 pivotable and right plate 12 respectively, left plate 18 and right plate 12 are installed respectively left outside double end and cut off lower cutter 19 and right outside double end cuts off lower cutter 14.
As shown in Figures 3 and 4, left plate 18 and right plate 12 all having can by the L-type groove 26 of U-shaped beam.Left frame 9 and right frame 10 all have can by the L-type groove 26 of U-shaped beam.
As shown in Figure 2, pre-cutting mechanism 2 comprises pre-cutting frame 5, pre-cutting frame 5 is installed pre-cutting hydraulic cylinder 4, pre-cutting hydraulic cylinder 4 lower end correspondence position installs pre-cutting upper slitter 6, and pre-cutting frame 5 bottom is positioned to install cutter 7 under pre-cutting below pre-cutting upper slitter 6.
As shown in Figures 3 and 4, left frame 9 and right frame 10 are arranged symmetrically with, and left inside double end cuts off lower cutter 16 and left outside double end, and to cut off lower cutter 19 position corresponding, and right inside double end cuts off lower cutter 15 and right outside double end, and to cut off lower cutter 14 position corresponding.
During work, section bar 20 is treated off-position is delivered to below pre-cutting upper slitter 6, pre-cutting hydraulic cylinder 4 piston rod stretches out, and drives pre-cutting upper slitter 6 to enter cutter 7 under pre-cutting, after piston rod is retracted, in the middle part of U-shaped beam punched go out a rectangular indentation.Then the rectangular indentation place of section bar 20 delivers to the first double end cut-out upper slitter 17 and the second double end cut-out upper slitter 13 position of double end shut-off mechanism 3, first double end cutting-off liquid cylinder pressure 8 and the second double end cutting-off liquid cylinder pressure 11 piston rod stretch out simultaneously, drive the first double end to cut off upper slitter 17 to enter left inside double end and cut off lower cutter 16 and left outside double end and cut off gap in the middle part of lower cutter 19, the second double end is cut off upper slitter 13 and is entered right inside double end and cut off lower cutter 15 and right outside double end and cut off gap in the middle part of lower cutter 14 simultaneously.Now section bar 20 remain connecting portion be cut off, cut-out completes.
If U-shaped trammel lattice change, i.e. outside of belly change width, only need to rotate the screw rod 21 being positioned at left and right, then nut 22 and screw rod 21 relative position change, nut 22 drives left frame 9 and right frame 10 to move left and right inside guide plate 25 on base plate 1, when L-type groove 26 distance in left frame 9 and right frame 10 and left plate 18 and right plate 12 is mated with longeron width, namely left inside double end cuts off lower cutter 16, first double end cuts off upper slitter 17, left outside double end cuts off lower cutter 19 and the second double end cuts off upper slitter 13, right outside double end cuts off lower cutter 14, when the distance of the lower cutter 15 of right inside double end cut-out is mated with longeron width, adjustment completes.
Claims (7)
1. a U-shaped beam shearing device, is characterized in that it comprises base plate, installation pre-cutting Agency head shut-off mechanism separated by a distance on base plate; Described pre-cutting mechanism complete die-cut after on U-shaped beam outside of belly mid portion formed rectangular indentation;
Double end shut-off mechanism comprises and mutually keeps independently left frame and right frame, the first double end arranging the first double end cutting-off liquid cylinder pressure and driving thereof on left frame top cuts off upper slitter, left frame bottom correspondence arrange left inside double end cut off under cutter and left outside double end cut off under cutter; The second double end arranging the second double end cutting-off liquid cylinder pressure and driving thereof at right upper rack cuts off upper slitter, right frame lower correspondence arrange right inside double end cut off under cutter and right outside double end cut off under cutter;
Described first double end cut-out upper knife edge mouth-shaped is identical with U-shaped beam section left-half, and is rotated counterclockwise 10 ° around angular vertex of turning left; Second double end cut-out upper knife edge mouth-shaped is identical with U-shaped beam section right half part, and turns clockwise 10 ° around angular vertex of turning right; The corner angle that the lower cutter of described left inside double end cut-out and right inside double end cut off lower edge is 90 °, and under left outside double end cut-out, cutter and right outside double end cut off the corner angle of lower edge is 87 ° ± 1 °.
2. the U-shaped beam shearing device of the one according to claim l, is characterized in that being fixed with guide plate on base plate, and left frame and right frame are sliding with base plate under the guiding of guide plate joins; Outside left frame and right frame, be fixed with nut respectively, base plate arranges the movement realizing left frame and right frame with the screw rod of nut screw connection.
3. the U-shaped beam shearing device of the one according to claim l, it is characterized in that left frame and right frame are fitted through pinned connection respectively and around the left plate of bearing pin pivotable and right plate, left plate and right plate installed respectively left outside double end and cut off lower cutter and right outside double end cuts off lower cutter.
4. the U-shaped beam shearing device of one according to claim 3, it is characterized in that left plate and right plate all have can by the L-type groove of U-shaped beam.
5. the U-shaped beam shearing device of the one according to claim l, it is characterized in that left frame and right frame all have can by the L-type groove of U-shaped beam.
6. the U-shaped beam shearing device of the one according to claim l, it is characterized in that pre-cutting mechanism comprises pre-cutting frame, pre-cutting frame is installed pre-cutting hydraulic cylinder, pre-cutting upper slitter is installed in pre-cutting hydraulic cylinder lower end, and pre-cutting frame lower is positioned at correspondence position below pre-cutting upper slitter and installs cutter under pre-cutting.
7. the U-shaped beam shearing device of the one according to claim l, it is characterized in that left frame and right frame are arranged symmetrically with, left inside double end cuts off lower cutter and left outside double end, and to cut off lower cutter position corresponding, and right inside double end cuts off lower cutter and right outside double end, and to cut off lower cutter position corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013509.5A CN103056217B (en) | 2013-01-15 | 2013-01-15 | U-shaped girder cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310013509.5A CN103056217B (en) | 2013-01-15 | 2013-01-15 | U-shaped girder cutting device |
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| Publication Number | Publication Date |
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| CN103056217A CN103056217A (en) | 2013-04-24 |
| CN103056217B true CN103056217B (en) | 2015-03-18 |
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| CN201310013509.5A Active CN103056217B (en) | 2013-01-15 | 2013-01-15 | U-shaped girder cutting device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108393354A (en) * | 2018-03-21 | 2018-08-14 | 安徽艾普智能装备有限公司 | Rolling continuous production positions disconnecting device |
| CN109781549B (en) * | 2019-01-31 | 2021-05-28 | 中铁六局集团有限公司 | U-shaped beam static load test method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1884001A (en) * | 1930-05-22 | 1932-10-25 | Walter V Lewis | Shearing and cutting machine |
| US3938413A (en) * | 1974-08-12 | 1976-02-17 | Goettel Robert J | Extrusion preparation apparatus |
| US4457197A (en) * | 1981-02-26 | 1984-07-03 | Rolf Peddinghaus | Device for cutting and/or stamping metal bars and sections |
| US6439089B1 (en) * | 1996-12-23 | 2002-08-27 | Shear, Llc | Apparatus for shearing multi-walled workpieces |
| CN101433976A (en) * | 2008-12-18 | 2009-05-20 | 济南铸锻所捷迈机械有限公司 | Blanket machine |
| CN201410529Y (en) * | 2009-03-23 | 2010-02-24 | 龙岩理尚精密机械有限公司 | C-shaped beam 45-degree oblique cutting die |
| CN202045408U (en) * | 2011-01-30 | 2011-11-23 | 宝山钢铁股份有限公司 | Stepwise side shearing device |
| CN202162257U (en) * | 2011-05-24 | 2012-03-14 | 惠州市升华工业有限公司 | Square pipe cut-off die |
| CN202199665U (en) * | 2011-08-05 | 2012-04-25 | 厦门跨世机械制造有限公司 | Framework cutting die |
| CN202239878U (en) * | 2011-09-29 | 2012-05-30 | 浙江新世纪机械制造有限公司 | Hydraulic punching and shearing machine |
| CN203076403U (en) * | 2013-01-15 | 2013-07-24 | 济南铸造锻压机械研究所有限公司 | U-type girder cutoff device |
-
2013
- 2013-01-15 CN CN201310013509.5A patent/CN103056217B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1884001A (en) * | 1930-05-22 | 1932-10-25 | Walter V Lewis | Shearing and cutting machine |
| US3938413A (en) * | 1974-08-12 | 1976-02-17 | Goettel Robert J | Extrusion preparation apparatus |
| US4457197A (en) * | 1981-02-26 | 1984-07-03 | Rolf Peddinghaus | Device for cutting and/or stamping metal bars and sections |
| US6439089B1 (en) * | 1996-12-23 | 2002-08-27 | Shear, Llc | Apparatus for shearing multi-walled workpieces |
| CN101433976A (en) * | 2008-12-18 | 2009-05-20 | 济南铸锻所捷迈机械有限公司 | Blanket machine |
| CN201410529Y (en) * | 2009-03-23 | 2010-02-24 | 龙岩理尚精密机械有限公司 | C-shaped beam 45-degree oblique cutting die |
| CN202045408U (en) * | 2011-01-30 | 2011-11-23 | 宝山钢铁股份有限公司 | Stepwise side shearing device |
| CN202162257U (en) * | 2011-05-24 | 2012-03-14 | 惠州市升华工业有限公司 | Square pipe cut-off die |
| CN202199665U (en) * | 2011-08-05 | 2012-04-25 | 厦门跨世机械制造有限公司 | Framework cutting die |
| CN202239878U (en) * | 2011-09-29 | 2012-05-30 | 浙江新世纪机械制造有限公司 | Hydraulic punching and shearing machine |
| CN203076403U (en) * | 2013-01-15 | 2013-07-24 | 济南铸造锻压机械研究所有限公司 | U-type girder cutoff device |
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| CN103056217A (en) | 2013-04-24 |
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Inventor after: Yang Yiyong Inventor after: Meng Haoran Inventor after: Liu Yuzhang Inventor after: Liu Liang Inventor after: Du Peifu Inventor before: Liu Liang Inventor before: Yang Yiyong Inventor before: Liu Yuzhang Inventor before: Du Peifu |
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Effective date of registration: 20221012 Address after: 5114009a102, No.8 workshop, Yushan Industrial Park, Guangzhu Road, Shangni village, Lanhe Town, Nansha District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Liding Auto Parts Co.,Ltd. Address before: No. 500, Fenghuang Road, Changqing District, Jinan City, Shandong Province Patentee before: Jinan Foundry and Metal Forming Machinery Research Institute Co.,Ltd. |
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