CN104625637A - High-strength plate rolling and on-line cutting method - Google Patents
High-strength plate rolling and on-line cutting method Download PDFInfo
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- CN104625637A CN104625637A CN201410844735.2A CN201410844735A CN104625637A CN 104625637 A CN104625637 A CN 104625637A CN 201410844735 A CN201410844735 A CN 201410844735A CN 104625637 A CN104625637 A CN 104625637A
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- cutting
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- forming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Mechanical Engineering (AREA)
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Abstract
The invention relates to a processing technology of plate pressing sectional materials, in particular to a high-strength plate rolling and a on-line cutting method. According to the technology, the method includes the steps of decoiling coil stock, flattening the coil stock, roll forming, straightening sectional materials and cutting on-line. The method is characterized in that a step of automatic punching is added between the step of flattening the coil stock and the step of roll forming, the step of automatic punching is used for punching a row of holes in boards, when the rolling formed sectional materials are cut in the punching location, cutting force bearing points can be reduced by more than one thirds, the cutting stress is reduced, and the cutting deformation is reduced. The method mainly solves the technical problem that in the prior art fracture is prone to occur during cutting on-line and the cutting deformation of the rolling sectional materials is large, previous parking cutting of the plate rolling with high strength being changed into on-line synchronous cutting can be achieved, and the production efficiency of production lines can be improved. In addition, by means of positioning cutting, the consistency of on-line punching locations is guaranteed, the production efficiency and the use ratio of the plate rolling with high strength are effectively improved.
Description
Technical field
The present invention relates to high-strength plate rolling section bar processing technology, particularly the online cutting-off method of a kind of high-strength plate rolling.
Background technology
At undertaking Chang'an Peugeot Citroen B81/B753 vehicle longitudinal beam reinforcing plate and side door beams project, for client propose carry out rolling and forming with the high-strength plate raw material of hot strength > 1200Mpa time.In conjunction with existing rolling and forming technique under the assistance of engineering department and production division, high-strength plate rolling on-line synchronous Cutting process is proposed.
In prior art, this process flow steps is generally designed to: (1) coiled strip uncoiling; (2) coiled strip leveling; (3) rolling and forming; (4) profile aligning; (5) cut off online.
But cutting knife is easier to break when cutting off online by above technological process; Its main cause is that the hot strength of high strength strip is greater than 1200Mpa, the thickness 2mm of strip, as with the cutting knife that makes of mould steel cannot bear the stress resilience of this high-strength plate, the problem that service life is short even if bursting apart also easily appears in the cutting knife using good mould steel DC53 to make at all; And meeting and to cause rolling section bar otch to be out of shape large, seriously causes waste of raw materials.
Summary of the invention
The object of the present invention is to provide the online cutting-off method of a kind of high-strength plate rolling, mainly solve cutting knife when existing technique is cut off online to be easier to break and meeting and cause rolling section bar otch to be out of shape large technical problem, high-strength plate rolling is become on-line synchronous by parking cut-out before cut off and can realize, not only can improve the production efficiency of production line.Secondly, the position degree uniformity of online punching can also be ensured by orientation amputate, effectively enhance productivity and the stock utilization of high-strength plate rolling.
For achieving the above object, technical scheme of the present invention is:
The online cutting-off method of a kind of high-strength plate rolling, its processing step comprises coiled strip uncoiling, coiled strip leveling, rolling and forming, profile aligning, cuts off online; It is characterized in that: between this coiled strip leveling, rolling and forming step, increase automatic punching machine punching step, for at sheet material upper punch one round, with by the section bar after rolling and forming when punching position cuts off, cut off stress point and reduce more than 1/3, thus reduce cut-out stress, reduce simultaneously and cut off modification.
The described online cutting-off method of high-strength plate rolling, it is characterized in that: after this rolling and forming, profile aligning step and before online cut-out step, at punching position, an alignment pin is installed, cutting machine retainer platform is installed the detection section bar end-position photoelectric sensor of an Adjustable Range; When section bar in roll milling process leading head through photoelectric sensor, photoelectric sensor senses and can send instruction to the cylinder control valve of alignment pin, the alignment pin that cylinder control valve is connected to after opening on cylinder will bounce, navigate to Kong Weili made in advance accurately to locate, ensure that cutting machine cuts off all in pre-punched hole centre position at every turn, eliminate the position at every turn all can not cutting the center in punching because cutting machine there is error in tracking cutting-off process.
The described online cutting-off method of high-strength plate rolling, it is characterized in that: increase a NC feeder and one between this coiled strip leveling, rolling and forming step with the 160T twin shaft punch press automatically rushing function, before autoloader and after automatic punching machine position need have storage device or storing melt pit uninterrupted to ensure with forming machine speed sync.
The described online cutting-off method of high-strength plate rolling, is characterized in that: the hole rushed is not limited to U-shaped hole, can be circular hole or square hole.
The invention has the beneficial effects as follows:
1, the present invention by high-strength plate rolling by before parking cut off become on-line synchronous cut off can realize, not only can improve the production efficiency of production line.Secondly, the position degree uniformity of online punching can also be ensured by orientation amputate, effectively enhance productivity and the stock utilization of high-strength plate rolling.
2, the inventive method is cut off all in pre-punched hole centre position at every turn, to reach the effect reducing and cut off stress, makes reach more than 50,000 times the service life of cut-out cutting knife.
3, on-line synchronous Cutting process of the present invention, for bump-proof rod for automobile door, chassis member stiffener field, the industry field that simultaneously can apply to products application also very extensive, the aspects such as such as highway barrier, automobile making, container, rail vehicle, bridge, steel construction.
Accompanying drawing explanation
Fig. 1 is the structural representation of sheet material after pre-punched hole in present invention process step.
Fig. 2 is the structural representation of perforated hole roll rolled shaped material in present invention process step.
Fig. 3 be in Fig. 2 A-A to sectional view.
Fig. 4 be in Fig. 2 B-B to sectional view.
Fig. 5 responds to the structural representation that alignment pin is positioned pre-punched hole in present invention process step.
Fig. 6 is the structural representation cutting off cutting knife off-position in present invention process step.
Fig. 7 be in present invention process step photoelectric sensor structural representation is set.
In figure: 1-pre-punched hole; 2-high strength strip; 3-rolling and forming cross section; 4-punching position rolling and forming cross section; 5-perforated hole roll rolled shaped material; 6-responds to alignment pin cross section; 7-jack section bar cross section; 8-off-position cross section; 9-cuts off cutting knife online; 10-cuts off profiled ends; 11-photoelectric sensor.
Detailed description of the invention
The invention discloses the online cutting-off method of a kind of high-strength plate rolling, its processing step comprises coiled strip uncoiling, coiled strip leveling, rolling and forming, profile aligning, cuts off online; Automatic punching machine punching step is increased between this coiled strip leveling, rolling and forming step, for at sheet material upper punch one round (as Fig. 1), with by the section bar (as Fig. 2-4) after rolling and forming when punching position cuts off (as Fig. 6), cut off stress point and reduce more than 1/3, thus reduce cut-out stress, reduce simultaneously and cut off modification.
After this rolling and forming, profile aligning step and before online cut-out step, at punching position, an alignment pin (as Fig. 5) is installed, cutting machine retainer platform is installed the detection section bar end-position photoelectric sensor of an Adjustable Range; When section bar in roll milling process leading head through photoelectric sensor (as Fig. 7), photoelectric sensor senses and can send instruction to the cylinder control valve of alignment pin, the alignment pin that cylinder control valve is connected to after opening on cylinder will bounce, navigate to Kong Weili made in advance accurately to locate, ensure that cutting machine cuts off all in pre-punched hole centre position at every turn, eliminate the position at every turn all can not cutting the center in punching because cutting machine there is error in tracking cutting-off process.
Increase a NC feeder and one between this coiled strip leveling, rolling and forming step with the 160T twin shaft punch press automatically rushing function, before autoloader and after automatic punching machine position need have storage device or storing melt pit uninterrupted to ensure with forming machine speed sync.
As preferred embodiment, the hole rushed is U-shaped hole.
Be only preferred embodiment of the present invention in sum, be not used for limiting practical range of the present invention.Namely all equivalences done according to the content of the present patent application the scope of the claims change and modify, and all should be technology category of the present invention.
Claims (4)
1. the online cutting-off method of high-strength plate rolling, its processing step comprises coiled strip uncoiling, coiled strip leveling, rolling and forming, profile aligning, cuts off online; It is characterized in that: between this coiled strip leveling, rolling and forming step, increase automatic punching machine punching step, for at sheet material upper punch one round, with by the section bar after rolling and forming when punching position cuts off, cut off stress point and reduce more than 1/3, thus reduce cut-out stress, reduce simultaneously and cut off modification.
2. the online cutting-off method of high-strength plate rolling according to claim 1, it is characterized in that: after this rolling and forming, profile aligning step and before online cut-out step, at punching position, an alignment pin is installed, cutting machine retainer platform is installed the detection section bar end-position photoelectric sensor of an Adjustable Range; When section bar in roll milling process leading head through photoelectric sensor, photoelectric sensor senses and can send instruction to the cylinder control valve of alignment pin, the alignment pin that cylinder control valve is connected to after opening on cylinder will bounce, navigate to Kong Weili made in advance accurately to locate, ensure that cutting machine cuts off all in pre-punched hole centre position at every turn, eliminate the position at every turn all can not cutting the center in punching because cutting machine there is error in tracking cutting-off process.
3. the online cutting-off method of high-strength plate rolling according to claim 1 and 2, it is characterized in that: increase a NC feeder and one between this coiled strip leveling, rolling and forming step with the 160T twin shaft punch press automatically rushing function, before autoloader and after automatic punching machine position need have storage device or storing melt pit uninterrupted to ensure with forming machine speed sync.
4. the online cutting-off method of high-strength plate rolling according to claim 1 and 2, is characterized in that: the hole rushed is not limited to U-shaped hole, can be circular hole or square hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410844735.2A CN104625637B (en) | 2014-12-31 | 2014-12-31 | High-strength plate rolling and on-line cutting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410844735.2A CN104625637B (en) | 2014-12-31 | 2014-12-31 | High-strength plate rolling and on-line cutting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104625637A true CN104625637A (en) | 2015-05-20 |
| CN104625637B CN104625637B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410844735.2A Active CN104625637B (en) | 2014-12-31 | 2014-12-31 | High-strength plate rolling and on-line cutting method |
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Citations (6)
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| CN101417354A (en) * | 2008-12-09 | 2009-04-29 | 刘海昌 | Double-crank frame type flying shear |
| US7712345B1 (en) * | 2007-05-29 | 2010-05-11 | Chun-Liang Chen | Main beam fabrication procedure and system for making a main beam for warehouse framework |
| CN201493541U (en) * | 2009-08-14 | 2010-06-02 | 常州市方正型钢有限公司 | Follow-up fixed length shearing machine |
| CN103737250A (en) * | 2013-07-04 | 2014-04-23 | 天津格润科农冷弯有限公司 | Greenhouse n-shaped steel framework continuous cold bending production method |
| CN103736835A (en) * | 2013-07-04 | 2014-04-23 | 天津格润科农冷弯有限公司 | Greenhouse water tank framework on-line cold roll forming technology |
| CN203830534U (en) * | 2014-03-14 | 2014-09-17 | 安徽伟嘉装备技术有限公司 | Automatic refrigerator box frame sheet metal forming line |
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2014
- 2014-12-31 CN CN201410844735.2A patent/CN104625637B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7712345B1 (en) * | 2007-05-29 | 2010-05-11 | Chun-Liang Chen | Main beam fabrication procedure and system for making a main beam for warehouse framework |
| CN101417354A (en) * | 2008-12-09 | 2009-04-29 | 刘海昌 | Double-crank frame type flying shear |
| CN201493541U (en) * | 2009-08-14 | 2010-06-02 | 常州市方正型钢有限公司 | Follow-up fixed length shearing machine |
| CN103737250A (en) * | 2013-07-04 | 2014-04-23 | 天津格润科农冷弯有限公司 | Greenhouse n-shaped steel framework continuous cold bending production method |
| CN103736835A (en) * | 2013-07-04 | 2014-04-23 | 天津格润科农冷弯有限公司 | Greenhouse water tank framework on-line cold roll forming technology |
| CN203830534U (en) * | 2014-03-14 | 2014-09-17 | 安徽伟嘉装备技术有限公司 | Automatic refrigerator box frame sheet metal forming line |
Non-Patent Citations (1)
| Title |
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| 卢险峰: "《冲压工艺模具学（第3版）》", 31 March 2014, 机械工业出版社 * |
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| CN104625637B (en) | 2017-02-22 |
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