CN113579660A - Manufacturing process method of curved surface special-shaped thick part plate - Google Patents
Manufacturing process method of curved surface special-shaped thick part plate Download PDFInfo
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- CN113579660A CN113579660A CN202110919308.6A CN202110919308A CN113579660A CN 113579660 A CN113579660 A CN 113579660A CN 202110919308 A CN202110919308 A CN 202110919308A CN 113579660 A CN113579660 A CN 113579660A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H7/00—Marking-out or setting-out work
- B25H7/04—Devices, e.g. scribers, for marking
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention relates to the technical field of building steel structures and discloses a manufacturing process method of a curved surface special-shaped thick part plate. The method comprises the steps of developing a plane of a part plate with a special-shaped curved surface, designing a nesting diagram by combining the part plates with the same radian and the same plate thickness, programming intersecting lines for cutting a circular tube according to the nesting diagram, rolling the steel plate with the size of the nesting diagram after cutting out the steel plate, and cutting according to the intersecting line programming to obtain the part plate. According to the invention, the part plates with the special-shaped curved surfaces are uniformly discharged, rolled, discharged and mechanically provided with the grooves, so that the production efficiency in unit time is accelerated, and meanwhile, compared with the conventional production method, the production quality is improved; in addition, the production method can improve the utilization rate of the steel plate to the maximum extent, save the production cost and achieve the aims of cost reduction and efficiency improvement.
Description
Technical Field
The invention relates to the technical field of fire fighting equipment, in particular to a manufacturing process method of a curved surface special-shaped thick part plate.
Background
Along with the national vigorous popularization of assembly type buildings, the number of landmark buildings constructed by steel structures is increasing. Meanwhile, due to the requirement of building modeling, some special-shaped components are often processed and manufactured.
For the special-shaped curved surface part plate assembled into the special-shaped component, the special-shaped curved surface part plate is often processed in a fire straightening or bending mode. However, when the thickness of the plate is too large and the size of the component plate is too small, the tie is not sufficient. If the curved plate is formed by pressing and folding the plate in a bending mode, the radian of the curved surface of the plate is not smooth due to the over-concentrated stress of the pressing knife. In addition, when the size of the part plate is too small and thick, the part plate cannot be bent due to the size limitation of the bending groove, and meanwhile, the part plate cannot be well corrected due to thick fire. Moreover, when the bent part plates need to be welded, grooves need to be formed, and because the steel plates are cambered surfaces, the grooves cannot be erected and tracks cannot be formed, mechanical cutting cannot be adopted, so that the grooves can only be cut manually, and the subsequent welding quality is affected.
To the problem, in order to meet the requirement of bending a mechanical groove, the size of a special-shaped steel plate is generally increased, a plurality of bending steps are adopted to approximate an arc-shaped curved surface, and meanwhile, the fire shape correction type is adopted for local correction in the follow-up process. And finally, cutting off the redundant steel plate at the enlarged position. When the number of the part plates is large, the method is adopted, huge waste is caused to the cost of the steel plates, and meanwhile, a large amount of labor cost is increased.
Disclosure of Invention
The invention provides a manufacturing process method of a curved-surface special-shaped thick part plate, which aims to solve the technical problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: a manufacturing process method of a curved surface special-shaped thick part plate comprises the following steps:
the method comprises the following steps: a plane development drawing of the part plate with the special-shaped curved surface is provided, and the size and the radian before development are marked at the same time;
step two: classifying the part plates, classifying the part plates with the same radian and the same plate thickness into one class, designing nesting drawings of the part plates of the same class according to plane development drawings of the part plates, and nesting on the same steel plate;
step three: according to the size of the steel plate after the nesting and the radian size of the part plates, providing a circular tube size diagram with the same length, thickness and diameter (note: the expanded view of the circular tube size diagram is equal to the size diagram of the steel plate after the nesting), and then carrying out intersection line programming of circular tube cutting again according to the arrangement sequence of each part plate of the nesting diagram;
step four: pre-cutting a large flat steel plate in advance according to a nesting diagram, and cutting out a steel plate with the overall outer contour size of the nesting diagram;
step five: rolling the steel plate according to a circular tube size diagram;
step six: and cutting the steel plate after being rolled according to the intersecting line programming to obtain a part plate.
Preferably, when the intersecting line in the third step is programmed, the part plate needing to be beveled is programmed into the program;
preferably, in the fourth step, powder spraying and line drawing are performed on the steel plate, that is, the outline size of a subsequent required part drawing is drawn, in the sixth step, pre-cutting is performed according to intersecting line programming before intersecting line cutting, whether a pre-cut walking route is consistent with a powder spraying and line drawing route is checked, and cutting is performed after the pre-cut walking route is consistent with the powder spraying and line drawing route to obtain the part plate.
Preferably, during rounding in the fifth step, the face, marked by the powder spraying line, of the round pipe is placed at the position of the outer wall of the round pipe, and the phenomenon that lines are partially worn and unclear in the rounding process is timely repaired by a stone powder pen.
Preferably, during the programming of the intersecting line in the third step, the part plates need to be connected with each other by adopting a dotted process bridge, so that the steel plate is prevented from falling off during the subsequent intersecting line cutting, and the cutting quality is prevented from being influenced.
Preferably, after the part plate is unfolded to be a plane, when an arc edge exists, the process bridge can be placed at the highest tangent point position of the arc edge, so that the assembly datum line of the arc edge can be found quickly in the subsequent assembly process.
Preferably, after cutting in the sixth step, after the component is cooled, the process bridge between the part plates is cut, and points of the process bridge are marked while cutting, so that subsequent assembly is facilitated.
The invention has the beneficial effects that: according to the invention, the part plates with the special-shaped curved surfaces are uniformly discharged, rolled, discharged and mechanically provided with the grooves, so that the production efficiency in unit time is accelerated, and meanwhile, compared with the conventional production method, the production quality is improved; in addition, the production method can improve the utilization rate of the steel plate to the maximum extent, save the production cost and achieve the aims of cost reduction and efficiency improvement.
Drawings
FIG. 1 is a schematic flow chart of an embodiment of the present invention;
FIG. 2 is a drawing of a detail plate required to be obtained in an embodiment of the present invention;
FIG. 3 is a schematic diagram of a part plate structure requiring beveling in the embodiment of the present invention;
FIG. 4 is a drawing of a nesting of the present invention;
FIG. 5 is a diagram of a circular tube programming cut route of the present invention;
FIG. 6 is a schematic view of a process bridge junction of the present invention;
FIG. 7 is a schematic diagram of the spraying and marking line positioned on the outer side of the round tube when the steel plate is rolled.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): a manufacturing process method of a curved surface special-shaped thick part plate is shown in figures 1-7 and comprises the following steps:
firstly, a drawing department unfolds a component plate with a curved surface to be manufactured into a horizontal plate component, a plan view is provided, and the size of the plan view and the radian and the thickness of the component plate before unfolding are marked on the component plate;
secondly, the part plates with the same plate thickness and the same radian are uniformly classified by a production planning department door and are issued to a nesting department, the part plates which are unfolded with the same plate thickness and the same radian are uniformly nested by a nesting department door, the length and the width of a nesting diagram are determined according to the size and the radian of each part plate, the utilization rate of the part plates is improved to the maximum extent, and the nesting diagram as shown in FIG. 4 is obtained;
the method comprises the steps of providing a circular tube size graph with the same radian according to the radian size of a nesting graph and the whole length and width size after nesting, then programming intersecting lines for circular tube cutting again according to the arrangement sequence of each part plate of the nesting graph, programming the part plates needing to be beveled into a program when the drawing is programmed, and meanwhile, connecting the plate plates by adopting a punctiform process bridge so as to prevent a steel plate from falling off during subsequent intersecting line cutting and influence on cutting quality, wherein in addition, after the part plates are unfolded into a plane, when an arc edge exists, the process bridge can be placed at the highest tangent point position of the arc edge so as to facilitate the subsequent assembly to quickly find an assembly datum line of the arc edge, and the process bridge is shown in figure 6;
when the scheduling production is carried out to the factory production, firstly, the steel plate is scheduled to a flat steel plate blanking workshop, the blanking workshop carries out precutting on the flat steel plate in advance according to the procedure of the nesting diagram, and powder spraying and line drawing are carried out during precutting, namely the outline size of a part diagram required to follow is drawn;
the steel plate after powder spraying and line drawing is operated to a rolling team, the rolling team performs rolling according to a circular tube size diagram, one surface of the powder spraying and line drawing is placed at the outer wall of a circular tube when rolling is performed, and particularly as shown in fig. 7, an unclear phenomenon caused by local abrasion of a line in the rolling process is timely repaired by a mountain flour pen;
and transferring the part plate after being rolled to a circular tube intersecting line cutting department, performing precutting according to intersecting line programming during intersecting line cutting, judging whether the travelling route of the composite cutting gun head accords with a powder spraying and line drawing position, and performing cutting when the travelling route and the powder spraying and line drawing position coincide.
After cutting, after the component is cooled, the process bridge between the part plates is cut, the points of the process bridge are marked by stone pens while cutting, subsequent assembly is facilitated, and meanwhile, the part plates are numbered and then distributed to production teams and groups.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. A manufacturing process method of a curved surface special-shaped thick part plate is characterized by comprising the following steps:
the method comprises the following steps: a plane development drawing of the part plate with the special-shaped curved surface is provided, and the size and the radian before development are marked at the same time;
step two: classifying the part plates, classifying the part plates with the same radian and the same plate thickness into one class, designing nesting drawings of the part plates of the same class according to plane development drawings of the part plates, and nesting on the same steel plate;
step three: according to the size of the steel plate after the nesting and the radian size of the part plates, a circular tube size diagram with the same length, thickness and diameter is provided, and then the intersecting line programming of circular tube cutting is carried out again according to the arrangement sequence of each part plate of the nesting diagram;
step four: pre-cutting a large flat steel plate in advance according to a nesting diagram, and cutting out a steel plate with the overall outer contour size of the nesting diagram;
step five: rolling the steel plate according to a circular tube size diagram;
step six: and cutting the steel plate after being rolled according to the intersecting line programming to obtain a part plate.
2. The manufacturing process method of the curved surface special-shaped thick part plate according to claim 1, characterized in that: during the programming of intersecting lines in the third step, programming a part plate needing to be beveled into a program;
3. the manufacturing process method of the curved surface special-shaped thick part plate according to claim 1, characterized in that: and in the fourth step, powder spraying and line drawing are carried out on the steel plate at the same time, namely the outline size of a subsequent required part drawing is drawn, in the sixth step, pre-cutting is carried out according to intersecting line programming before intersecting line cutting, whether a pre-cut walking route is consistent with a powder spraying and line drawing route is checked, and cutting is carried out after the pre-cut walking route is consistent with the powder spraying and line drawing route to obtain the part plate.
4. The manufacturing process method of the curved surface special-shaped thick part plate according to claim 3, characterized in that: and fifthly, during rounding, the surface of the sprayed powder drawn line is placed at the outer wall of the circular tube, and the phenomenon of unclear line local abrasion in the rounding process is timely repaired by a stone powder pen.
5. The manufacturing process method of the curved surface special-shaped thick part plate according to any one of claims 1 to 4, characterized in that: and in the third step, when the intersecting line is programmed, the part plates need to be connected by adopting a dotted process bridge.
6. The manufacturing process method of the curved surface special-shaped thick part plate according to claim 5, characterized in that: after the part plate is unfolded to be a plane, when an arc edge exists, the process bridge is placed at the highest tangent point position of the arc edge.
7. The manufacturing process method of the curved surface special-shaped thick part plate according to claim 1, characterized in that: and sixthly, after cutting, cutting off the process bridge between the part plates after the component is cooled, and marking points of the process bridge while cutting off.
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| CN202110919308.6A CN113579660A (en) | 2021-08-11 | 2021-08-11 | Manufacturing process method of curved surface special-shaped thick part plate |
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| CN202110919308.6A CN113579660A (en) | 2021-08-11 | 2021-08-11 | Manufacturing process method of curved surface special-shaped thick part plate |
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