CN101367166B - Method for processing main cable saddle of suspension bridge - Google Patents
Method for processing main cable saddle of suspension bridge Download PDFInfo
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- CN101367166B CN101367166B CN2008101971110A CN200810197111A CN101367166B CN 101367166 B CN101367166 B CN 101367166B CN 2008101971110 A CN2008101971110 A CN 2008101971110A CN 200810197111 A CN200810197111 A CN 200810197111A CN 101367166 B CN101367166 B CN 101367166B
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- grooving
- stride
- end bay
- benchmark
- faying face
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Abstract
The invention discloses a method for processing a main cable saddle of a suspension bridge. A side span (1) and a midspan (2) of the main cable saddle are respectively processed, then a bolt (3) is used to connect the side span and the midspan, and a joint surface of the side span (1) and the midspan (2) is provided with a positioning pin hole (6). The method guarantees the consistency of the size of a rope groove after the side span (1) and the midspan (2) are butted, has no alternate edges, high butting accuracy and small error, unifies processing reference, has low requirement on processing equipment, is more convenient for clamping and calibration of workpieces, is easy to guarantee processing accuracy, and improves processing efficiency.
Description
Technical field
The present invention relates to a kind of processing method of component of machine, relate in particular to a kind of processing method of main cable saddle of suspension bridge.
Background technology
Main cable saddle of suspension bridge is arranged on the king-tower of bridge, the main push-towing rope rope is embedded in the grooving of main cable saddle, the weight of the whole body of a bridge and vehicle is delivered to bridge main tower by main cable saddle, and main cable saddle is the key component of whole bridge, and its workmanship directly influences the quality and the safety of bridge.As shown in Figure 1, the main cable saddle structure generally be divided into end bay 1, in stride 2 two parts, middle two parts are linked to be an integral body by high-strength bolt 3.The processing method of existing main cable saddle be earlier with end bay 1, in stride 2 two parts and carry out machining again after sealed with bolt 3.The manufacturing difficult point of this processing method mainly shows:
(1) the main cable saddle grooving is shaped as the complex space curved surface, need to adopt digital control processing, because main cable saddle size, weight are all bigger, needs large-size numerical control machine processing, the numerical control processing technology complexity;
(2) main cable saddle end bay 1, in stride 2 two parts sealed after, bigger at machine tool chief axis direction processing stroke, it is longer to make that machine tool chief axis overhangs, poor rigidity, machining accuracy are difficult to guarantee.Simultaneously, make cutting speed, feed rate also lower, have a strong impact on working (machining) efficiency;
(3) main cable saddle end bay 1, in stride 2 two parts sealed after, weight has all had high requirement greater than 100 tons to the crane capacity in workshop, the weight capacity of machine tool rotary working table, has increased the security risk in lifting, the transportation.Simultaneously, because rotary table weight capacity restriction can only process, increased the difficulty of clamping workpiece, centering on the Horizon workbench.
Summary of the invention
The objective of the invention is at existing main cable saddle processing method complex process, precision is difficult to guarantee, process equipment required high, and defective that working (machining) efficiency is low and deficiency propose a kind of processing method of main cable saddle of suspension bridge.It is lower to the process equipment Capability Requirement, and technology is simple, and is easy to process, and machining accuracy is easy to guarantee that working (machining) efficiency is higher.
The objective of the invention is to realize in the following manner: a kind of processing method of main cable saddle of suspension bridge, respectively to the end bay of main cable saddle and in step into capable machined, connect with bolt again, may further comprise the steps:
A. check respectively end bay and in the machining allowance of striding, end bay and in draw the machined line on the faying face of striding and the baseplane;
B. heavy boring processing
B1. on Digit Control Machine Tool the clamping end bay or in stride, carry out centering by line, the roughing baseplane, allowance for finish is stayed in other side of bottom side and bottom;
B2. workbench turns round 90 ° clockwise, is benchmark with the baseplane, and the roughing faying face stays allowance for finish;
B3. each step surface of center grooving, grooving and limit grooving and the machined surface of limit grooving sidewall are carried out numerical control programming, stay allowance for finish, workbench turns round 90 ° clockwise, is benchmark with the faying face, the machined surface of the step surface of roughing center grooving, grooving, limit grooving and limit grooving sidewall;
C. right boring processing
C1. be benchmark with the faying face, the fine finishining end bay or in the baseplane of striding and bottom side to whole dipping cun;
C2. the fine finishining end bay or in stride the bottom other side;
C3. workbench turns round 90 ° clockwise, is benchmark with the baseplane, and the fine finishining faying face is very little to whole dipping;
C4. be machining benchmark with the bottom side, the bolt hole on the faying face is carried out numerical control programming or coordinates computed point, the digital control processing bolt hole is a benchmark with baseplane, bottom side, the dowel hole on the processing faying face;
C5. being the benchmark centering with the dowel hole, each step surface of center grooving, grooving and limit grooving is carried out numerical control programming, is machining benchmark with the baseplane, adopts slotting cutter machining center grooving, adopts slotting cutter or dish milling cutter fine finishining grooving and limit grooving;
C6. be machining benchmark with the bottom side, the machined surface of opposite side grooving sidewall carries out numerical control programming, the machined surface of employing dish milling cutter processing limit grooving sidewall.
The present invention further comprise step D. end bay, in the following process of striding
D1. with end bay and in the faying face stepped up dock align reaming dowel hole, the alignment pin of in the dowel hole of butt joint, packing into, construction bolt and locking in the bolt hole of butt joint mutually;
D2. to end bay and in step up the faying face position center grooving, grooving and limit grooving step surface polish.
The right boring first being processed of step C of the present invention, to end bay or in the roughed surface stepped up carry out penetrant inspection, ultrasonic examination and the roughed surface of center grooving, grooving, limit grooving and limit grooving sidewall carried out radiographic inspection.
Compared with prior art the present invention has following tangible advantage:
To the end bay of main cable saddle and in stride and carry out machining respectively, the weight saving of workpiece, to process equipment and lifting appliance require lowly, clamping workpiece and centering are more convenient, machining accuracy is easy to guarantee, and working (machining) efficiency improves.
End bay and in the faying face of striding be provided with dowel hole, adopt alignment pin realize end bay and in the butt joint of striding, guaranteed end bay and in stride the uniformity of butt joint back grooving size, no misalignment, the merging precision height, error is little, alignment pin is set simultaneously also for grooving processing provides machining benchmark, unified machining benchmark.Set up alignment pin at faying face.Because split processing grooving guarantees the consistent size that two halves saddle body docks the back grooving, no misalignment is particularly important, sets up alignment pin at faying face, for the following process grooving provides machining benchmark, has also guaranteed the correct of sealed back end bay and middle cross-location simultaneously.
3. unify machining benchmark.The processing end bay, in span sidewall machined surface, faying face bolt hole and the dowel hole of groove, the bottom side that all adopts the same side is a machining benchmark.The processing end bay, in span the groove step surface all with end bay and in the baseplane of striding be benchmark.Guaranteed end bay, in stride part size processing precision.
To the end bay of main cable saddle and in stride and carry out machining respectively, can the reasonable distribution device resource, realize that multiple devices process simultaneously, avoid integral body to add other one situations such as one of man-hour, shortened manufacturing schedule.
Description of drawings
Fig. 1 is the structural representation of main cable saddle;
Fig. 2 be on the main cable saddle end bay 1 and in stride 2 datum level schematic diagram;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the processing schematic diagram of center grooving 8;
Fig. 5 is the processing schematic diagram of grooving 9 and limit grooving 10;
Fig. 6 is the processing schematic diagram of processing grooving 10 sidewalls.
Among the figure, end bay 1, in stride 2, bolt 3, faying face 4, baseplane 5, dowel hole 6, bottom side 7, center grooving 8, grooving 9, limit grooving 10, slotting cutter 11, machine tool chief axis 12, dish milling cutter 13, universal milling head 14, lathe side pillow 15.
The specific embodiment
The present invention is described in further detail below in conjunction with description of drawings and the specific embodiment:
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, a kind of processing method of main cable saddle of suspension bridge, respectively to the end bay 1 of main cable saddle and in stride 2 and carry out machined, connect with bolt 3 again, may further comprise the steps:
A. check respectively end bay 1 and in stride 2 machining allowance, end bay 1 and in stride on 2 faying face 4 and the baseplane 5 and draw the machined line;
B. heavy boring processing
B1. on the TK6925 Digit Control Machine Tool clamping end bay 1 or in stride 2, carry out centering by line, roughing baseplane 5,5 millimeters allowances for finish are respectively stayed in other side of bottom side 7 and bottom;
B2. workbench turns round 90 ° clockwise, is benchmark with baseplane 5, and roughing faying face 4 stays 10 millimeters of allowances for finish;
B3. each step surface of center grooving 8, grooving 9 and limit grooving 10 and the machined surface of limit grooving 10 sidewalls are carried out numerical control programming, stay 5 millimeters of allowances for finish, workbench turns round 90 ° clockwise, with faying face 4 is benchmark, the machined surface of the step surface of roughing center grooving 8, grooving 9, limit grooving 10 and limit grooving 10 sidewalls stays 5 millimeters of allowances for finish;
C. right boring processing
C1. be benchmark with faying face 4, fine finishining end bay 1 or in stride 2 baseplane 5 and bottom side 7 to whole dipping cun;
C2. fine finishining end bay 1 or in stride other sides of 2 bottoms;
C3. workbench turns round 90 ° clockwise, is benchmark with baseplane 5, and fine finishining faying face 4 is very little to whole dipping;
C4. be machining benchmark with bottom side 7, the bolt hole on the faying face 4 is carried out numerical control programming or coordinates computed point, the digital control processing bolt hole is a benchmark with baseplane 5, bottom side 7, the 50 millimeters dowel holes 6 of Φ on the processing faying face 4;
C5. be the benchmark centering with 50 millimeters dowel holes of Φ 6, each step surface to center grooving 8, grooving 9 and limit grooving 10 carries out numerical control programming, with baseplane 5 is machining benchmark, adopt slotting cutter 11, tool diameter is 50 millimeters of Φ, machining center grooving 8 as Fig. 4, is installed in 50 millimeters slotting cutters 11 of Φ and processes center grooving 8 on the machine tool chief axis 12; Employing dish milling cutter 13 then, tool diameter is 200 millimeters of Φ, the step surface of fine finishining grooving 9 and limit grooving 10, as Fig. 4, Fig. 5; Among Fig. 5, dish milling cutter 13 is installed on the universal milling head 14, and universal milling head 14 is installed on lathe side's pillow 15, and the axis of dish milling cutter 13 and the axis of universal milling head 14 are positioned on the same axis;
C6 is a machining benchmark with bottom side 7. the machined surface of opposite side grooving 10 sidewalls carries out numerical control programming, employing dish milling cutter 13, tool diameter is 200 millimeters of Φ, the machined surface of processing limit grooving 10 sidewalls, as Fig. 6, the axis of dish milling cutter 13 and the axis of universal milling head 14 are perpendicular.
The present invention carries out the key of split processing method to main cable saddle of suspension bridge; The 1st, on faying face 4, set up dowel hole 6.Because each grooving is processed in split, guarantee main cable saddle end bay 1 and in stride the consistent size of 2 each grooving of butt joint back, no misalignment is particularly important, on faying face 4, set up dowel hole 6 and connect the location by alignment pin, for each grooving of following process provides machining benchmark, also guaranteed simultaneously sealed back end bay 1 and in stride the trams of 2 butt joints.The 2nd, unified machining benchmark.Wherein, processing end bay 1, in stride each limit grooving 10 sidewall on 2 machined surface, faying face 4, bolt hole and dowel hole 6 all adopt the bottom side 7 of the same side to be machining benchmark.And processing end bay 1, in stride each grooving on 2 step surface be benchmark all with its baseplane 5.Above measure can guarantee end bay 1 and in stride 2 in the accuracy of carrying out respectively docking after the machined.
For guarantee end bay 1 and in stride the accuracys of 2 butt joints, also can further comprise step D. end bay 1, in stride 2 following process
D1. with end bay 1 and in the faying face 4 of striding on 2 dock align reaming dowel hole 6, the alignment pin of in the dowel hole 6 of butt joint, packing into, construction bolt 3 and locking in the bolt hole of butt joint mutually;
D2. to end bay 1 and in stride faying face 4 positions on 2 center grooving 8, grooving 9 and limit grooving 10 step surfaces polish.
For guarantee end bay 1 and in stride the inherent quality of 2 materials, can also be in the right boring first being processed of described step C, to end bay 1 or in stride roughed surface on 2 and carry out penetrant inspection, ultrasonic examination and the roughed surface of center grooving 8, grooving 9, limit grooving 10 and limit grooving 10 sidewalls is carried out radiographic inspection.
Claims (3)
1. the processing method of a main cable saddle of suspension bridge is characterized in that: respectively to the end bay (1) of main cable saddle and in stride (2) and carry out machined, use bolt (3) to connect again, may further comprise the steps:
A. check respectively end bay (1) and in stride the machining allowance of (2), end bay (1) and in stride the faying face (4) of (2) and baseplane (5) and go up and draw machined line;
B. heavy boring processing
B1. on Digit Control Machine Tool clamping end bay (1) or in stride (2), carry out centering by line, roughing baseplane (5), allowance for finish is stayed in other side of bottom side (7) and bottom;
B2. workbench turns round 90 ° clockwise, is benchmark with baseplane (5), and roughing faying face (4) stays allowance for finish;
B3. each step surface of center grooving (8), grooving (9) and limit grooving (10) and the machined surface of limit grooving (10) sidewall are carried out numerical control programming, stay allowance for finish, workbench turns round 90 ° clockwise, with faying face (4) is benchmark, the machined surface of the step surface of roughing center grooving (8), grooving (9), limit grooving (10) and limit grooving (10) sidewall;
C. right boring processing
C1. be benchmark with faying face (4), fine finishining end bay (1) or in stride the baseplane (5) of (2) and bottom side (7) to whole dipping cun;
C2. fine finishining end bay (1) or in stride (2) bottom other side;
C3. workbench turns round 90 ° clockwise, is benchmark with baseplane (5), and fine finishining faying face (4) is very little to whole dipping;
C4. be machining benchmark with bottom side (7), the bolt hole on the faying face (4) is carried out numerical control programming or coordinates computed point, the digital control processing bolt hole is a benchmark with baseplane (5), bottom side (7), the dowel hole (6) on the processing faying face (4);
C5. be the benchmark centering with dowel hole (6), each step surface to center grooving (8), grooving (9) and limit grooving (10) carries out numerical control programming, with baseplane (5) is machining benchmark, adopt slotting cutter (11) machining center grooving (8), adopt slotting cutter (11) or dish milling cutter (13) fine finishining grooving (9) and limit grooving (10);
C6. be machining benchmark with bottom side (7), the machined surface of opposite side grooving (10) sidewall carries out numerical control programming, the machined surface of employing dish milling cutter (13) processing limit grooving (10) sidewall.
2. the processing method of a kind of main cable saddle of suspension bridge according to claim 1 is characterized in that: further comprise step D. end bay (1), in stride the following process of (2)
D1. with end bay (1) and in stride mutually butt joint of faying face (4) on (2), align reaming dowel hole (6), the alignment pin of in the dowel hole (6) of butt joint, packing into, construction bolt (3) and locking in the bolt hole of butt joint;
D2. to end bay (1) and in stride (2) and go up center grooving (8), grooving (9) and limit grooving (10) step surface at faying face (4) position and polish.
3. the processing method of a kind of main cable saddle of suspension bridge according to claim 1, it is characterized in that: the right boring first being processed of described step C, to end bay (1) or in stride roughed surface on (2) and carry out penetrant inspection, ultrasonic examination and the roughed surface of center grooving (8), grooving (9), limit grooving (10) and limit grooving (10) sidewall is carried out radiographic inspection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101971110A CN101367166B (en) | 2008-09-28 | 2008-09-28 | Method for processing main cable saddle of suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101971110A CN101367166B (en) | 2008-09-28 | 2008-09-28 | Method for processing main cable saddle of suspension bridge |
Publications (2)
| Publication Number | Publication Date |
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| CN101367166A CN101367166A (en) | 2009-02-18 |
| CN101367166B true CN101367166B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101971110A Expired - Fee Related CN101367166B (en) | 2008-09-28 | 2008-09-28 | Method for processing main cable saddle of suspension bridge |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101890613B (en) * | 2009-05-23 | 2013-08-21 | 鸿富锦精密工业（深圳）有限公司 | Processing method of alignment mark and workpiece with alignment mark |
| CN101664876B (en) * | 2009-09-09 | 2011-08-24 | 四川天元机械工程股份有限公司 | Processing method of large-scale suspension bridge vice saddle |
| CN102756236B (en) * | 2012-07-11 | 2014-06-25 | 武汉船用机械有限责任公司 | Method for machining linear saddle groove of main cable saddle of suspension bridge |
| CN102899990B (en) * | 2012-08-31 | 2014-12-03 | 湖南路桥建设集团有限责任公司 | Hook-shaped lifting saddle and supporting structure of rail rope |
| CN104631321B (en) * | 2015-01-30 | 2016-04-20 | 武汉船用机械有限责任公司 | A kind of processing method of main cable saddle of suspension bridge sliding pair |
| CN106271437B (en) * | 2016-08-31 | 2021-03-30 | 德阳天元重工股份有限公司 | Integral machining method for split main cable saddle of suspension bridge |
| CN107498309A (en) * | 2017-07-25 | 2017-12-22 | 南通小泉机电有限公司 | A kind of precision machining method of the thin arm of conveying machine people |
| CN109468950B (en) * | 2018-12-10 | 2024-04-30 | 德阳天元重工股份有限公司 | Main cable saddle of assembled back cable structure |
| CN109604662B (en) * | 2019-01-03 | 2020-05-12 | 武汉船用机械有限责任公司 | Numerical control boring and milling back chipping method for suspension bridge cable saddle |
| CN109853384B (en) * | 2019-01-31 | 2020-12-29 | 武汉船用机械有限责任公司 | Cable saddle and welding method thereof |
| CN112975483B (en) * | 2021-01-21 | 2022-06-17 | 武汉船用机械有限责任公司 | Method for processing fork-shaped part |
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