CN103433699A - Machining method for perforated U-shaped rib - Google Patents
Machining method for perforated U-shaped rib Download PDFInfo
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- CN103433699A CN103433699A CN2013103519256A CN201310351925A CN103433699A CN 103433699 A CN103433699 A CN 103433699A CN 2013103519256 A CN2013103519256 A CN 2013103519256A CN 201310351925 A CN201310351925 A CN 201310351925A CN 103433699 A CN103433699 A CN 103433699A
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Abstract
The invention relates to a machining method for a perforated U-shaped rib in manufacturing of a steel structure, in particular to a method for profiling a U-shaped rib after drilling before steel plate profiling, belonging to the technical field of plate forming. The machining method is implemented by the following steps: A, pretreating, flattening and feeding a steel plate; B, milling an edge in the length direction after stacking electric welding fixation; C, drilling a plurality of plates simultaneously and then milling an edge in the width direction; D, milling a plate groove; E, profiling the U-shaped rib. The machining method has the technological progress effects that (1) the machining difficulty for drilling after U-shaped rib forming can be reduced by drilling a hole group before profiling, (2) the hole group is simultaneously machined in a plurality of layers of plates through a drilling template to improve the hole forming efficiency, and (3) the internal stress of the steel plate is eliminated, the deformation before plate profiling is reduced and the positional accuracy of the hole group is guaranteed.
Description
Affiliated technical field
The present invention relates to the processing method of porose U-shaped rib in manufacture of steel structure, after especially first being holed before the steel plate die mould, the method for U-shaped rib die mould, belong to the plate forming technical field.
Background technology
Traditional machining based conception, in order to guarantee UXing Lei hole, hole group's precision, on the basis of U-shaped rib moulding, holed, can provide for the quality of rod member good guarantee although it is so, but very low on working (machining) efficiency, consider this processing technology and be not suitable for large batch of Produce on a large scale.
Summary of the invention
The object of the present invention is to provide and a kind ofly first holed before the steel plate die mould, the method for U-shaped rib die mould then, to improve the batch jobs work efficiency.
The technical scheme of the processing method of the porose U-shaped rib of the present invention realizes as follows:
A, steel plate pretreatment are caught up with flat, blanking;
B, multiple steel plate codes are piled up the fixing rear milling length direction of electric welding limit, obtain qualified width dimensions;
C, polylith plate are holed simultaneously, and then milling width limit, obtain the Qualified Length size;
D, mill out the plate groove;
E, U-shaped rib die mould.
The processing method of above-mentioned porose U-shaped rib, it is flat that the described steel plate pretreatment of steps A will be carried out repeatedly 6 to 8 times catch up with to steel plate materials, to reach the effect of eliminating the steel plate internal stress.
The processing method of above-mentioned porose U-shaped rib, the described steel plate of steps A carries out cutting stock through after pretreatment with flame cutting machine, and the width of every plate is that U-shaped rib length adds that the reserved amount of two side millings and width add the reserved amount of two side millings.
The processing method of above-mentioned porose U-shaped rib, the described limit of milling of step B comprises that the plate that flame is cut winches to code and piles up above, after after 8 one pile of alignment, the electricity consumption solid welding is determined, winches to 20m double-sided edge milling machine place and carries out milling simultaneously.
The processing method of above-mentioned porose U-shaped rib, the described limit of milling of step B also comprises the milling of steel plate length direction, and every side allowance 4mm, divide and mill for 2 times, and a rear cutter mills sales volume and is not more than 2mm, mills the side bending deformation amount that pin is eliminated plate substantially.
The processing method of above-mentioned porose U-shaped rib, the described boring of step C comprises and boring model and code pile plate material is tightened fixing, is holed for 8 one pile simultaneously, the bore position of described boring model is embedded with through heat treated spitting drill borehole jack; Then milling is carried out in the steel plate two ends.
The processing method of above-mentioned porose U-shaped rib, the moulding of the described U rib of step e comprises:
1), according to size after the moulding of drawing U-shaped rib, choose reasonable patrix (N3), adjust counterdie (N4) opening size, upper and lower mould linearity deviation≤1mm;
2) plate (N1-2) groove that makes to hole is located down, and a side is spacing by plate with scale, the linearity of plate while then with push rod, plate being held out against to guarantee to suppress, and the pressure forming process is disposable to be completed.
The processing method of above-mentioned porose U-shaped rib, the moulding of the described U rib of step e comprises: in design U-shaped rib, shape is detected model, and every U-shaped rib all will be checked with the die mould model, and whether opening size and the limb height of check U-shaped rib be qualified, in order to guarantee the positional precision of Kong Qun.
Technological progress effect of the present invention comprises: 1., by first boring group before die mould, can reduce the difficulty of processing of holing again after the moulding of U rib.2. the plate while machining hole group to multilayer by the boring model, improve the efficiency of portalling.3. eliminate the steel plate internal stress, reduce the front distortion of plate die mould, guarantee the positional precision of Kong Qun.
The accompanying drawing explanation
Fig. 1 utilizes boring model, the schematic diagram of simultaneously 8 steel plates being holed;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the plate top view that has bored Kong Qunhou;
What Fig. 4, Fig. 5 were tamping plants to steel plate carries out the bending and molding schematic diagram twice;
Fig. 6 is the front view of U-shaped rib after bending and molding;
Fig. 7 is that in the U rib, shape is detected the model schematic diagram.
In figure:
N1-1, plate; N2, boring model; N2-1, positioning sleeve
N1-2, bored the plate of Kong Qunhou; The upper film of N3, tamping plant;
The counterdie of N4, tamping plant; U-shaped rib after N1-3, moulding;
In N5, U-shaped rib, shape is detected model.
The specific embodiment
The processing method technological process of the porose U-shaped rib of the present invention is as follows:
Steel plate pretreatment-line-flame cuts-and code pile up-mills the length sides-width edge of holing-mill-mill groove-die mould-check.
Technical process key point before U-shaped rib die mould of the present invention:
1) steel plate materials is carried out repeatedly to 6 to 8 times catch up with flat, to reach the effect of eliminating the steel plate internal stress, can reduce greatly rear operation and add the distortion that produce man-hour.
2) steel plate carries out cutting stock through after pretreatment with flame cutting machine, the width of every plate is that U-shaped rib length adds that the reserved amount of two side millings and width add the reserved amount of two side millings, the every side surplus of limit surplus 8mm(4mm is milled in machined), the sheet material that flame is cut winches to code and piles up, after after 8 one pile of alignment, the electricity consumption solid welding is determined, winch to 20m double-sided edge milling machine place and carry out milling simultaneously.
3) allowance of the every side 4mm of steel plate will divide and milled for 2 times, and a rear cutter mills sales volume and is not more than 2mm, mills the side bending deformation amount that pin is eliminated plate substantially.Milled rear part width between+1-+2mm, surface roughness Ra is not less than 12.5 μ m, and in length range, side sway is no more than 2mm.
4) design special boring model N2 and plate N1 and tighten fixingly, holed for 8 one pile simultaneously, the bore position of boring model is provided with through heat treated spitting drill borehole jack N2-1.Can reduce alignment and be installed the time, portalling and raise the efficiency greatly.
2, U-shaped rib moulding
1), according to size after the moulding of drawing U-shaped rib, the reasonable selection patrix, adjust the counterdie size, upper and lower mould linearity deviation≤1mm.
2) to the degree of accuracy of adjustment be set with confirmation with the plate pressure testing of similar material before formal pressing plate material.
3), after checking bar piece number, specification, thickness and the linearity of determining supplied materials before die mould, confirm after qualified to carry out pressure-type process.
4) before the plate with groove, should make groove down in compacting.While locating plate, a side is spacing by plate with 12 scales, the linearity of plate while then with push rod, plate being held out against to guarantee to suppress.Compacting in the middle of forcing press as far as possible during compacting, bias voltage, do not make forcing press stressed evenly.
The pressure forming process must disposable completing, and every U-shaped rib all will be checked with the die mould model, and whether opening size and the limb height of check U-shaped rib be qualified, in order to guarantee the positional precision of Kong Qun.
Claims (8)
1. the processing method of a porose U-shaped rib, its characterization step comprises:
A, steel plate (N1-1) pretreatment are caught up with flat, blanking;
B, multiple steel plate codes are piled up the fixing rear milling length direction of electric welding limit, obtain qualified width dimensions;
C, polylith plate are holed simultaneously, and then milling width limit, obtain the Qualified Length size;
D, mill out the plate groove;
E, U-shaped rib die mould.
2. the processing method of porose U-shaped rib according to claim 1 is characterized in that: it is flat that the described steel plate pretreatment of steps A will be carried out repeatedly 6 to 8 times catch up with to steel plate materials, to reach the effect of eliminating the steel plate internal stress.
3. the processing method of porose U-shaped rib according to claim 1, it is characterized in that: the described steel plate of steps A carries out cutting stock through after pretreatment with flame cutting machine, and the width of every plate (N1-1) is that U-shaped rib length adds that the reserved amount of two side millings and width add the reserved amount of two side millings.
4. the processing method of porose U-shaped rib according to claim 1 is characterized in that: it is pile upper that the described plate that flame is cut of step B winches to code, after 8 one pile of alignment the electricity consumption solid welding fixed after, winch to 20m double-sided edge milling machine place and carry out milling simultaneously.
5. the processing method of porose U-shaped rib according to claim 4, it is characterized in that: the described limit of milling of step B also comprises that steel plate machine mills limit every side allowance 4mm, divide and milled for 2 times, a rear cutter mills sales volume and is not more than 2mm, mills the side bending deformation amount that pin is eliminated plate substantially.
6. the processing method of porose U-shaped rib according to claim 1, it is characterized in that: the described boring of step C comprises boring model (N2) and code pile plate material tighten and fix, holed for 8 one pile, the bore position of described boring model is provided with through heat treated spitting drill borehole jack (N2-1) simultaneously.
7. the processing method of porose U-shaped rib according to claim 1, it is characterized in that: the moulding of the described U rib of step e comprises:
1), according to size after the U-shaped rib moulding of drawing, reasonable selection patrix (N3), adjust counterdie (N4) opening size, upper and lower mould linearity deviation≤1mm;
2) plate (N1-2) groove that makes to hole is located down, and a side is spacing by plate with scale, the linearity of plate while then with push rod, plate being held out against to guarantee to suppress, and the pressure forming process is disposable to be completed.
8. the processing method of porose U-shaped rib according to claim 8, it is characterized in that: the moulding of the described U rib of step e comprises: in design U-shaped rib, shape is detected model (N5), every U-shaped rib all will be checked with the die mould model, whether opening size and the limb height of check U-shaped rib be qualified, in order to guarantee the positional precision of Kong Qun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013103519256A CN103433699A (en) | 2013-08-13 | 2013-08-13 | Machining method for perforated U-shaped rib |
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| CN2013103519256A CN103433699A (en) | 2013-08-13 | 2013-08-13 | Machining method for perforated U-shaped rib |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550460A (en) * | 2014-11-18 | 2015-04-29 | 海波重型工程科技股份有限公司 | Processing mould for U-shaped stiffening rib in steel bridge orthogonal shaped plate |
| CN104942532A (en) * | 2014-03-28 | 2015-09-30 | 舍弗勒技术股份两合公司 | Method for machining tappet with through hole |
| CN105234639A (en) * | 2015-11-12 | 2016-01-13 | 保定天威电气设备结构有限公司 | Control method for flatness and angles of bent power transformer box cover |
| CN105382311A (en) * | 2015-11-20 | 2016-03-09 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for relieving milling deformation of installation edge of casing |
| CN108723700A (en) * | 2018-05-29 | 2018-11-02 | 沈阳飞机工业（集团）有限公司 | A kind of model increases the process of drill bushing newly |
| CN112975298A (en) * | 2021-03-22 | 2021-06-18 | 保定天威保变电气股份有限公司 | Method for reducing bending deformation of asymmetric-structure pulling plate of field-assembled transformer |
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| GB401517A (en) * | 1932-12-30 | 1933-11-16 | Edwin Airey | Improvements in or relating to attaching metal strengthening pieces or ribs to sheet metal or expanded metal |
| JP2007319914A (en) * | 2006-06-02 | 2007-12-13 | Toyota Motor Corp | Press forming device |
| CN101574714A (en) * | 2009-06-25 | 2009-11-11 | 武昌船舶重工有限责任公司 | Method for bending and processing U rib |
| CN101774125A (en) * | 2010-01-14 | 2010-07-14 | 武船重型工程有限公司 | Processing technique of U-shaped ribs |
| CN202028690U (en) * | 2011-03-23 | 2011-11-09 | 上海振华重工(集团)股份有限公司 | U rib processing die |
| CN202105910U (en) * | 2011-05-06 | 2012-01-11 | 大连船舶重工集团装备制造有限公司 | Manufacturing die for linear U-shaped stiffened rib |
| CN202572608U (en) * | 2012-04-13 | 2012-12-05 | 中铁宝桥（扬州）有限公司 | U-shaped rib compressing cover die |
| CN202741594U (en) * | 2012-08-21 | 2013-02-20 | 无锡美业机械制造有限公司 | Roller mold provided with reinforcing ribs for stamping of U-shaped filter outer shell |
-
2013
- 2013-08-13 CN CN2013103519256A patent/CN103433699A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB401517A (en) * | 1932-12-30 | 1933-11-16 | Edwin Airey | Improvements in or relating to attaching metal strengthening pieces or ribs to sheet metal or expanded metal |
| JP2007319914A (en) * | 2006-06-02 | 2007-12-13 | Toyota Motor Corp | Press forming device |
| CN101574714A (en) * | 2009-06-25 | 2009-11-11 | 武昌船舶重工有限责任公司 | Method for bending and processing U rib |
| CN101774125A (en) * | 2010-01-14 | 2010-07-14 | 武船重型工程有限公司 | Processing technique of U-shaped ribs |
| CN202028690U (en) * | 2011-03-23 | 2011-11-09 | 上海振华重工(集团)股份有限公司 | U rib processing die |
| CN202105910U (en) * | 2011-05-06 | 2012-01-11 | 大连船舶重工集团装备制造有限公司 | Manufacturing die for linear U-shaped stiffened rib |
| CN202572608U (en) * | 2012-04-13 | 2012-12-05 | 中铁宝桥（扬州）有限公司 | U-shaped rib compressing cover die |
| CN202741594U (en) * | 2012-08-21 | 2013-02-20 | 无锡美业机械制造有限公司 | Roller mold provided with reinforcing ribs for stamping of U-shaped filter outer shell |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104942532A (en) * | 2014-03-28 | 2015-09-30 | 舍弗勒技术股份两合公司 | Method for machining tappet with through hole |
| CN104550460A (en) * | 2014-11-18 | 2015-04-29 | 海波重型工程科技股份有限公司 | Processing mould for U-shaped stiffening rib in steel bridge orthogonal shaped plate |
| CN105234639A (en) * | 2015-11-12 | 2016-01-13 | 保定天威电气设备结构有限公司 | Control method for flatness and angles of bent power transformer box cover |
| CN105382311A (en) * | 2015-11-20 | 2016-03-09 | 沈阳黎明航空发动机(集团)有限责任公司 | Method for relieving milling deformation of installation edge of casing |
| CN108723700A (en) * | 2018-05-29 | 2018-11-02 | 沈阳飞机工业（集团）有限公司 | A kind of model increases the process of drill bushing newly |
| CN112975298A (en) * | 2021-03-22 | 2021-06-18 | 保定天威保变电气股份有限公司 | Method for reducing bending deformation of asymmetric-structure pulling plate of field-assembled transformer |
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Application publication date: 20131211 |