Integral manufacturing and forming device and method for ship body

Abstract

The invention discloses a ship body integral manufacturing forming device and method, and belongs to the field of ship body forming manufacturing. The device comprises a power module, an electrode module, a conductive metal strip, a liquid injection module, an edge pressing module and a mold; the blank pressing module is pressed above the ship edge of the prefabricated workpiece, so that the prefabricated workpiece is fixedly pressed in the mold, the prefabricated workpiece is fixed between the blank pressing module and the mold, a closed space is formed between the blank pressing module and the opening end of the prefabricated workpiece, and after liquid is injected into the closed space, the prefabricated workpiece is equivalent to a flexible container; when the device is used for forming the prefabricated workpiece, the conductive metal strip explodes under the action of pulse current generated by the electrode module, shock waves are formed in liquid, the shock waves drive the metal workpiece to deform, and therefore the shape correction of the prefabricated workpiece is achieved. According to the device, the equipment and production cost can be reduced, the proficiency of workers can be reduced, the production efficiency and the product quality can be improved, and the device is suitable for rapid, accurate and low-cost forming and manufacturing of various ship bodies.

Description

Technical Field

[0001] The present invention belongs to the field of ship hull forming and manufacturing, and more specifically, relates to a ship hull integral manufacturing and forming device and method. Background Art

[0002] Traditional hull manufacturing technology mainly adopts block welding, which is highly dependent on the proficiency of welding workers, has low manufacturing efficiency and a long production cycle. Traditional aluminum alloy hull manufacturing equipment usually includes: (a) aluminum alloy sheet processing equipment: equipment used to cut, bend and form aluminum alloy sheets, such as shearing machines, bending machines, plate rolling machines and CNC machining centers; (b) assembly tools: assembly platforms, fixtures and jigs used to position and fix various hull components to ensure accuracy during welding and assembly; (c) grinding and finishing equipment: Since traditional welding methods may cause uneven welds, pores and welding defects, grinding equipment is usually required to finish the welding surface, which increases the process time and affects the overall production efficiency.

[0003] Although traditional equipment can complete the processing and forming of the hull, it has many shortcomings in terms of efficiency, welding quality, process control, etc., resulting in the hull manufacturing process being cumbersome, costly, and highly dependent on workers' skills, and unable to effectively meet the modern hull manufacturing needs of fast, accurate, and low-cost. It can be seen that in the hull manufacturing and forming technology, how to reduce the dependence on manual labor and improve production efficiency is a problem that needs to be solved urgently. Summary of the invention

[0004] In view of the above defects or improvement needs of the prior art, the present invention provides a device and method for integrally manufacturing a hull, thereby solving the problems of long production cycle and low production efficiency of the prior art hull.

[0005] To achieve the above-mentioned object, according to a first aspect of the present invention, a hull integral manufacturing and forming device is provided, comprising: a power module, an electrode module, a conductive metal strip, a liquid injection module, a press edge module and a mold;

[0006] The edge pressing module is pressed on the edge of the prefabricated workpiece, thereby fixing the prefabricated workpiece in the mold, and the edge pressing module and the open end of the prefabricated workpiece form a closed space;

[0007] The liquid injection module is used to inject liquid into the closed space;

[0008] The electrode module comprises a first electrode and a second electrode, wherein the first electrode, a power module, a second electrode and a conductive metal strip are sequentially connected to form a series circuit, and the power supply is used to apply a voltage between the first electrode and the second electrode to generate a pulse current, so that the conductive metal strip discharges and explodes under the action of the pulse current, thereby forming a shock wave in the liquid to deform the prefabricated workpiece and fit it with the mold;

[0009] The liquid is a non-flammable liquid; the prefabricated workpiece is obtained by cutting a metal plate according to a planar unfolding diagram of the hull to be formed, and then bending and welding the metal plate in sequence.

[0010] According to a second aspect of the present invention, there is provided a method for integrally manufacturing a hull, which is applied to the device for integrally manufacturing a hull as described in the first aspect, comprising:

[0011] S1, injecting liquid into the closed space;

[0012] S2, applying a voltage between the first and second electrodes to generate a pulse current, so that the conductive metal strip discharges and explodes under the action of the pulse current, thereby forming a shock wave in the liquid to deform the prefabricated workpiece and fit it with the mold.

[0013] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0014] The hull integral manufacturing and forming device provided by the present invention has the following advantages over the conventional aluminum alloy hull manufacturing device:

[0015] (1) Reducing equipment and production costs: Traditional aluminum alloy hull manufacturing devices require numerous specialized equipment. The device provided by the present invention can reduce equipment and production costs by simplifying the process and reducing equipment requirements, thereby reducing the overall manufacturing cost;

[0016] (2) Improve production efficiency: In the traditional method of manufacturing a ship hull, the hull usually needs to be manufactured in sections and then assembled and welded. Since multiple parts need to be spliced ​​together, the number of welds is large and the length is long. The device provided by the present invention adopts integrated manufacturing, which can reduce assembly and welding time and speed up the production cycle.

[0017] (3) Reduced reliance on worker skills: The quality of welding by traditional methods is affected by many factors and requires strict quality inspection and control measures. Deformation, cracks, pores and other defects are prone to occur during welding, which requires experienced welders and increases labor costs. The device provided by the present invention has a higher degree of automation and can reduce the engineering proficiency, thereby reducing the demand for highly skilled welders.

[0018] (4) Improving product quality: The device provided by the present invention can reduce welds and thermal deformation, and improve the integrity and reliability of the hull structure.

[0019] (5) Reduced energy consumption and environmental impact: The device provided by the present invention has a more efficient manufacturing process, which helps to reduce energy consumption and reduce environmental load.

[0020] In summary, the device provided by the present invention can reduce equipment and production costs, reduce the proficiency of workers, improve production efficiency and product quality, and is suitable for rapid, precise, and low-cost forming and manufacturing of various types of hulls. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 One of the structural schematic diagrams of the hull integral manufacturing and forming device provided in an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of a prefabricated workpiece provided in an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of a hull forming part obtained by forming a prefabricated workpiece using the hull integral manufacturing forming device provided by an embodiment of the present invention;

[0024] Figure 4 The second structural schematic diagram of the hull integral manufacturing and forming device provided by the embodiment of the present invention;

[0025] Figure 5 One of the schematic diagrams of the case where the mold in the hull integral manufacturing and forming device provided by the embodiment of the present invention is completely fitted with the prefabricated workpiece;

[0026] Figure 6 The second schematic diagram of the hull integral manufacturing forming device provided in the embodiment of the present invention when the mold and the prefabricated workpiece are completely fitted together.

[0027] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0028] 1-power supply, 21-first electrode, 22-second electrode, 3-valve, 4-edge clamping module, 5-sealing ring, 6-liquid, 7-mold, 8-prefabricated workpiece, 9-conductive metal strip, 10-insulating sleeve. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] The embodiment of the present invention provides a hull integral manufacturing and forming device, such as Figure 1 As shown, it includes: a power module 1, an electrode module, a conductive metal strip 9, a liquid injection module, a pressing module 4 and a mold 7;

[0031] The edge pressing module 4 is pressed on the edge of the prefabricated workpiece 8, so that the prefabricated workpiece 8 is fixedly pressed in the mold 7, and the edge pressing module and the open end of the prefabricated workpiece form a closed space;

[0032] Specifically, Figure 1 As shown, the edge pressing module is pressed on the edge of the prefabricated workpiece, so that the prefabricated workpiece 8 is fixedly pressed in the mold 7, so that the prefabricated workpiece is fixed between the edge pressing module and the mold. The mold is used to limit the forming morphology of the prefabricated workpiece, so that the morphology of the prefabricated workpiece is consistent with the morphology of the target hull.

[0033] The liquid injection module is connected to the edge pressing module and is used to inject the liquid 6 into the closed space;

[0034] The electrode module comprises a first electrode 21 and a second electrode 22. The first electrode 21, the power module 1, the second electrode 22 and the conductive metal strip 9 are sequentially connected to form a series circuit. The power supply is used to apply a voltage between the first electrode and the second electrode to generate a pulse current, so that the conductive metal strip discharges and explodes under the action of the pulse current, thereby forming a shock wave in the liquid to deform the prefabricated workpiece and fit it with the mold;

[0035] The liquid is a non-flammable liquid; the prefabricated workpiece is obtained by cutting a metal plate according to a planar unfolding diagram of the hull to be formed, and then bending and welding the metal plate in sequence.

[0036] Specifically, the two ends of the conductive metal strip are respectively connected to the first and second electrodes, and the conductive metal strip is located in the liquid in the enclosed space, the liquid is above the prefabricated workpiece, and the mold is located directly below the metal workpiece; the liquid injection module is used to inject the liquid into the enclosed space before the conductive metal strip discharges; when the prefabricated workpiece is formed using the device provided by the present invention, the first and second electrodes are connected to the power supply to provide a pulse current; the conductive metal strip discharges and explodes under the action of the pulse current, forming a shock wave in the liquid, and the shock wave drives the metal workpiece to deform and fit with the mold.

[0037] It can be understood that after the liquid is injected into the sealed closed space, the prefabricated workpiece is equivalent to a flexible container, and the conductive metal strip explodes under the action of the pulse current, forming a shock wave in the liquid, and the shock wave drives the metal workpiece to deform, thereby achieving the correction of the prefabricated workpiece.

[0038] The prefabricated workpiece is obtained by cutting the metal plate according to the plane unfolding diagram of the hull to be formed, and then bending and welding it.

[0039] The prefabricated workpiece is bent into a hull-like structure, and its shape is close to the mold shape, so the prefabricated workpiece can also be called a hull prefabricated part. That is, the prefabricated workpiece is obtained by preliminary processing of the metal plate according to the target hull shape. Figure 2 As shown, the metal plate is first cut according to the planar unfolding diagram of the hull to be formed (i.e., the target hull), and then it is preliminarily bent and welded to make it into a hull-like structure to obtain a prefabricated workpiece. It can be understood that the morphology of the prefabricated workpiece is close to the target hull morphology, but because the prefabricated workpiece is only preliminarily bent and welded to the cut metal plate, there is a gap between its overall curvature and the curvature of the target hull morphology. By further adopting the device provided by the present invention, the prefabricated workpiece can be corrected to fit the mold, so that the morphology of the prefabricated workpiece is consistent with the morphology of the target hull.

[0040] Among them, stir friction welding or argon arc welding process can be used for welding.

[0041] The device provided by the present invention fixes the prefabricated workpiece on the mold through the edge pressing module, and deforms the prefabricated workpiece by means of electro-hydraulic explosion until the prefabricated workpiece is completely fitted with the mold, that is, formed into the shape of the mold.

[0042] The blanking module and the die can be fixed by screws.

[0043] The device also includes a sealing ring 5 for sealing the closed space to prevent leakage of liquid inside the closed space.

[0044] Preferably, the first and second electrodes are both sleeved with insulating sleeves 10 to concentrate the pulse current on the conductive metal strip.

[0045] Preferably, the conductive metal strip is aluminum wire or aluminum foil.

[0046] Preferably, the power supply is a capacitive energy storage type power supply.

[0047] Preferably, the liquid injection module is a valve 3 .

[0048] An embodiment of the present invention provides a method for integrally manufacturing a hull, which is applied to an integrally manufacturing a hull device as described in any of the above embodiments, comprising:

[0049] S1, injecting liquid into the closed space;

[0050] S2, applying a voltage between the first and second electrodes to generate a pulse current, so that the conductive metal strip discharges and explodes under the action of the pulse current, thereby forming a shock wave in the liquid to deform the prefabricated workpiece and fit it with the mold.

[0051] Preferably, the method further comprises:

[0052] S3, repeat S2 until the prefabricated workpiece is completely fitted with the mold.

[0053] Specifically, a conductive metal strip is placed between two electrodes, and a prefabricated workpiece is placed under the electrodes; after a liquid is injected into the closed space formed by the metal workpiece and the edge pressing module, a voltage is applied between the two electrodes; under the action of the voltage, the conductive metal strip discharges to generate a pulse current, thereby exciting an explosion shock wave; the explosion shock wave is transmitted to the prefabricated workpiece through the liquid, and the prefabricated workpiece is deformed under the action of the explosion shock wave and collides with the mold until the prefabricated workpiece is completely fitted with the mold. Figure 4-6 As shown, the hull forming work is completed.

[0054] The prefabricated workpiece is deformed by means of electro-hydraulic explosion, which can be formed once or multiple times (depending on the size of the pulse current, the structural parameters of the hull part to be formed, etc.) until the workpiece fits the mold.

[0055] An embodiment of the present invention provides a method for integrally manufacturing a hull, comprising:

[0056] The metal plate is cut according to the planar unfolded view of the hull to be formed, and then bent and welded to obtain a prefabricated workpiece. The prefabricated workpiece is corrected using a hull integral manufacturing and forming device as described in any of the above embodiments to make it fit the mold, so that the morphology of the prefabricated workpiece is consistent with the target hull morphology.

[0057] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hull integral manufacturing and forming device, characterized in that: include: Power module, electrode module, conductive metal strip, injection module, edge pressing module and mold; The edge pressing module is pressed on the edge of the prefabricated workpiece, thereby fixing the prefabricated workpiece in the mold, and the edge pressing module and the open end of the prefabricated workpiece form a closed space; The liquid injection module is used to inject liquid into the closed space; The electrode module comprises a first electrode and a second electrode, wherein the first electrode, a power module, a second electrode and a conductive metal strip are sequentially connected to form a series circuit, and the power supply is used to apply a voltage between the first electrode and the second electrode to generate a pulse current, so that the conductive metal strip discharges and explodes under the action of the pulse current, thereby forming a shock wave in the liquid to deform the prefabricated workpiece and fit it with the mold; The liquid is a non-flammable liquid; the prefabricated workpiece is obtained by cutting a metal plate according to a planar unfolding diagram of the hull to be formed, and then bending and welding the metal plate.

2. The device according to claim 1, characterized in that The first and second electrodes are both sleeved with insulating sleeves.

3. The device according to claim 1, characterized in that The conductive metal strip is aluminum wire or aluminum foil.

4. The device according to claim 1, characterized in that The power supply is a capacitor energy storage type power supply.

5. The device according to claim 1, characterized in that The liquid injection module is a valve.

6. A method for manufacturing an integral hull, applied to the device for manufacturing an integral hull as claimed in any one of claims 1 to 5, characterized in that: include: S1, injecting liquid into the closed space; S2, applying a voltage between the first and second electrodes to generate a pulse current, so that the conductive metal strip discharges and explodes under the action of the pulse current, thereby forming a shock wave in the liquid to deform the prefabricated workpiece and fit it with the mold.

7. The method according to claim 6, characterized in that Also includes: S3, repeat S2 until the prefabricated workpiece is completely fitted with the mold.

8. A method for integrally manufacturing a hull, characterized in that: include: The metal plate is cut according to the planar unfolding diagram of the hull to be formed, and then bent and welded to obtain a prefabricated workpiece, and the prefabricated workpiece is corrected using the hull integral manufacturing and forming device as described in any one of claims 1 to 5 to make it fit the mold.

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