CN103010405B - Method for controlling section cutting precision of transverse bulkhead - Google Patents

Method for controlling section cutting precision of transverse bulkhead Download PDF

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Publication number
CN103010405B
CN103010405B CN201210541558.1A CN201210541558A CN103010405B CN 103010405 B CN103010405 B CN 103010405B CN 201210541558 A CN201210541558 A CN 201210541558A CN 103010405 B CN103010405 B CN 103010405B
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Prior art keywords
thwartship bulkhead
value
thwartship
bulkhead
end opening
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CN201210541558.1A
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CN103010405A (en
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郝肖宾
许大鹏
黎翔
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Hudong Zhonghua Shipbuilding Group Co Ltd
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Hudong Zhonghua Shipbuilding Group Co Ltd
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Abstract

The invention discloses a method for controlling section cutting precision of a transverse bulkhead. The method comprises the following steps of: measuring planeness of the lower end of the transverse bulkhead, measuring the planeness of an internal bottom plate, comparing data and cutting the lower port of upper pier of the transverse bulkhead. By the method, the lower pier groove of the transverse bulkhead is not damaged when the upper pier is cut; the assembling quality can be guaranteed; and the workload of grinding and blasting the groove after welding can be reduced.

Description

A kind of for thwartship bulkhead segmentation mowing accuracy control method
Technical field
The present invention relates to hull accuracy of manufacture control technology field, particularly one is used for thwartship bulkhead segmentation mowing accuracy control method.
Background technology
Along with the development of shipping industry, how to reduce work capacity further, increase work efficiency, create more benefit, precision shipbuilding adopt by more and more shipyard.Thwartship bulkhead lower end mowing not only destroys sheet material groove increases time for positioning, also needs reverse side carbon quick-fried during welding, increases work capacity.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of for thwartship bulkhead segmentation mowing accuracy control method, measure by carrying benchmark (tank top plate planeness), carry segmentation (thwartship bulkhead lower end plane degree) to measure, the surplus of thwartship bulkhead lower end mowing is placed on pier lower end on thwartship bulkhead and carries out mowing, make thwartship bulkhead lower end without mowing.Lower end surplus is placed on upper pier lower end mowing, after upper pier lower end does not have groove mowing, does not affect welding job.
Technical solution of the present invention is as follows:
A kind of for thwartship bulkhead segmentation mowing accuracy control method, comprise
Step one, thwartship bulkhead lower end plane degree are measured, specific as follows:
1. thwartship bulkhead flute profile wall and lower pier segmentation are put to horizontality on door frame;
2. with thwartship bulkhead top board center point P 1for initial point, with another P on line of centers 2for X-axis, set up rectangular coordinate system;
3. pier front panel, squab panel two ends end points under pier front panel under thwartship bulkhead end opening face member and thwartship bulkhead or squab panel intersection point and thwartship bulkhead are measured, show that each point is apart from point of origin P respectively 1length L in X-axis 1~ L 2n, then length L 1~ L 2ndeduct thwartship bulkhead segmentation end opening respectively to flute profile wall theoretical length L suitable for reading, be this deviation delta L 1~ Δ L 2n, wherein, when Δ L value is just, represent that thwartship bulkhead segmentation end opening is longer than theoretical value, when Δ L value is negative, represent that thwartship bulkhead segmentation end opening is shorter than theoretical value;
4. step 3. in the deviation delta L that obtains by analysis of data that measures 1~ Δ L 2nbe thwartship bulkhead lower surface planeness data.
Step 2, the tank top plate measurement of planeness, specific as follows:
1. bottom section carries location;
2. be benchmark with baseline, measure the height D of thwartship bulkhead end opening corresponding point on bottom section tank top plate 1~ D 2n, then height D 1~ D 2ndeduct the theoretical level H of tank top plate to baseline respectively, be this discrepancy in elevation Δ D 1~ Δ D 2n, wherein, when Δ D value is just, represent that tank top plate aspect ratio theoretical value is high, when Δ D value is negative, represent at the bottom of tank top plate aspect ratio theoretical value;
3. step 2. in the discrepancy in elevation Δ D that obtains by analysis of data that measures 1~ Δ D 2nbe tank top plate planeness data.
Step 3, Data Comparison, specifically certain some thwartship bulkhead lower end plane degree observed reading be added with tank top plate measurement of planeness value, the numerical value S of gained is the length that this point should cut off or the gap vacated, and wherein, S is for just to represent length, and S is negative indication gap.
ΔL 1+ΔD 1=S 1
ΔL 2+ΔD 2=S 2
ΔL 2n+ΔD 2n=S 2n
The mowing of pier end opening on step 4, thwartship bulkhead, concrete steps are as follows:
1. the section of sentencing S 1~ S 2nwhether middle minimum value is less than-16mm, if so, then performs step 2., otherwise, perform step 3.;
2.-16mm and S is calculated 1~ S 2nthe difference DELTA S of middle minimum value, by S 1~ S 2nall add Δ S;
3. by S 1~ S nin be greater than 0 each point margin value draw pier stern end end opening on thwartship bulkhead, by S n+1~ S 2nin be greater than 1/3 of each point margin value of 0 and draw pier bow end end opening on thwartship bulkhead.
Compared with prior art, the invention has the beneficial effects as follows:
1, do not destroy sheet material groove, ensure assembly quality.
2, the work capacity of polishing, the rear quick-fried groove of carbon of welding is reduced.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of thwartship bulkhead towards stern face.
Fig. 2 is the schematic diagram of thwartship bulkhead towards bow face.
Fig. 3 is thwartship bulkhead end opening corresponding tank top plate measurement of planeness point schematic diagram.
Fig. 4 is thwartship bulkhead side schematic view.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described further, but should not limit the scope of the invention with this.
A kind of for thwartship bulkhead segmentation mowing accuracy control method, comprise
Step one, thwartship bulkhead lower end plane degree measure (see Fig. 1 and Fig. 2):
1. thwartship bulkhead flute profile wall and lower pier segmentation are put to horizontality on door frame;
2. with thwartship bulkhead top board center point P 1for initial point, with another P on line of centers 2for X-axis, set up rectangular coordinate system;
3. pier front panel under pier front panel under thwartship bulkhead end opening face member and thwartship bulkhead or squab panel intersection point and thwartship bulkhead or squab panel two ends end points 14 key points are measured, show that each point is apart from point of origin P 1x length L 1~ L 14, then deduct thwartship bulkhead end opening respectively to flute profile wall theoretical length L suitable for reading, be this deviation delta L 1~ Δ L 14, wherein, when Δ L value is just, represent that thwartship bulkhead segmentation end opening is longer than theoretical value, when Δ L value is negative, represent that thwartship bulkhead segmentation end opening is shorter than theoretical value;
4. step 3. in the deviation delta L that obtains by analysis of data that measures 1~ Δ L 14be thwartship bulkhead lower surface planeness data.
Step 2, the tank top plate measurement of planeness (see Fig. 3):
1. bottom section carries location;
2. with total powerstation or 14 points corresponding to level measurement thwartship bulkhead end opening, be altitude datum with baseline, show that each point is respectively D apart from baseline height 1~ D 14, then deduct tank top plate respectively to baseline theoretical level H, be this discrepancy in elevation Δ D 1~ Δ D 14, wherein, when Δ D value is just, represent that tank top plate height is higher than theoretical value, when Δ D value is negative, represent that tank top plate height is than at the bottom of theoretical value;
3. step 2. in the discrepancy in elevation Δ D that obtains by analysis of data that measures 1~ Δ D 14be tank top plate planeness data.
Step 3, Data Comparison:
By the Δ L that thwartship bulkhead end opening is measured 1~ Δ L 14with corresponding Δ D 1~ Δ D 14be added, the numerical value S of gained is the length that this point should cut off or the gap vacated, and wherein, S is for just to represent length, and S is negative indication gap.
ΔL 1+ΔD 1=S 1
ΔL 2+ΔD 2=S 2
ΔL 14+ΔD 14=S 14
The mowing of pier end opening on step 4, thwartship bulkhead:
Under thwartship bulkhead pier end opening bow end to stern end distance be on thwartship bulkhead pier end opening bow end to 3 times of stern end distance, so 1/3 stroke of the margin value of thwartship bulkhead end opening bow end to pier end opening bow end (see Fig. 4) on thwartship bulkhead.
1. the section of sentencing S 1~ S 14whether middle minimum value is less than-16mm, if so, then performs step 2., otherwise, perform step 3.;
2.-16mm and S is calculated 1~ S 14the difference DELTA S of middle minimum value, by S 1~ S 14all add Δ S;
3. by S 1~ S 7in be greater than 0 each point margin value draw pier stern end end opening on thwartship bulkhead, by S 8~ S 14in be greater than 1/3 of each point margin value of 0 and draw pier bow end end opening on thwartship bulkhead.
Show through on probation, the inventive method is widely used in the thwartship bulkhead by two parts total group, and wherein, a part is pier under flute profile wall, thwartship bulkhead, and another part is pier on thwartship bulkhead, thwartship bulkhead main deck.On mowing thwartship bulkhead of the present invention, pier does not destroy thwartship bulkhead lower end groove.

Claims (1)

1. for a thwartship bulkhead segmentation mowing accuracy control method, it is characterized in that, comprise the mowing of pier end opening on the measurement of thwartship bulkhead lower end plane degree, the tank top plate measurement of planeness, Data Comparison and thwartship bulkhead;
It is as follows that described thwartship bulkhead lower end plane degree measures concrete steps:
1. thwartship bulkhead flute profile wall and lower pier segmentation are put to horizontality on door frame;
2. with thwartship bulkhead top board center point P 1for initial point, with another P on line of centers 2for X-axis, set up rectangular coordinate system;
3. the two ends end points of pier front panel, squab panel under the intersection point of pier front panel or squab panel under thwartship bulkhead end opening face member and thwartship bulkhead and thwartship bulkhead is measured, show that each point is apart from point of origin P respectively 1length L in X-axis 1~ L 2n, then length L 1~ L 2ndeduct thwartship bulkhead segmentation end opening respectively to flute profile wall theoretical length L suitable for reading, be this deviation delta L 1~ Δ L 2n, wherein, when Δ L value is just, represent that thwartship bulkhead segmentation end opening is longer than theoretical value, when Δ L value is negative, represent that thwartship bulkhead segmentation end opening is shorter than theoretical value;
4. step 3. in the deviation delta L that obtains by analysis of data that measures 1~ Δ L 2nbe thwartship bulkhead lower surface planeness data;
Described tank top plate measurement of planeness concrete steps are as follows:
1. bottom section carries location;
2. be benchmark with baseline, measure the height D of thwartship bulkhead end opening corresponding point on bottom section tank top plate 1~ D 2n, then will height D 1~ D 2ndeduct the theoretical level H of tank top plate to baseline respectively, be this discrepancy in elevation Δ D 1~ Δ D 2n, wherein, when Δ D value is just, represent that tank top plate aspect ratio theoretical value is high, when Δ D value is negative, represent at the bottom of tank top plate aspect ratio theoretical value;
3. step 2. in the discrepancy in elevation Δ D that obtains by analysis of data that measures 1~ Δ D 2nbe tank top plate planeness data;
Described Data Comparison concrete steps are added with tank top plate measurement of planeness value certain some thwartship bulkhead lower end plane degree observed reading, and the numerical value S of gained is the length that this point should cut off or the gap vacated, and wherein, S is for just to represent length, and S is negative indication gap;
On described thwartship bulkhead, the concrete steps of the mowing of pier end opening are as follows:
1. the section of sentencing S 1~ S 2nwhether middle minimum value is less than-16mm, if so, then performs step 2., otherwise, perform step 3.;
2.-16mm and S is calculated 1~ S 2nthe difference DELTA S of middle minimum value, by S 1~ S 2nall add Δ S;
3. by S 1~ S nin be greater than 0 each point margin value draw pier stern end end opening on thwartship bulkhead, by S n+1~ S 2nin be greater than 1/3 of each point margin value of 0 and draw pier bow end end opening on thwartship bulkhead.
CN201210541558.1A 2012-12-13 2012-12-13 Method for controlling section cutting precision of transverse bulkhead Active CN103010405B (en)

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CN104743059B (en) * 2015-03-25 2018-04-24 沪东中华造船(集团)有限公司 A kind of more block pre-modified methods of hull annular
CN106595535A (en) * 2016-11-29 2017-04-26 中船西江造船有限公司 Stern ramp surface flatness detection method
CN106643583A (en) * 2016-11-29 2017-05-10 中船西江造船有限公司 Detection method for flatness of stern chute surface
CN108945297A (en) * 2018-07-27 2018-12-07 广船国际有限公司 A kind of watercraft engine room location segment division methods
CN109533191B (en) * 2018-10-23 2020-09-25 上海江南长兴造船有限责任公司 Hoisting method for middle section of transverse bulkhead of duplex stainless steel chemical tanker

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