Flexible adjustable cradle for the construction of a ship's pre-swirl guide vane and method of manufacturing the same

Abstract

The present application relates to the technical field of ship manufacturing tooling, and discloses a flexible adjustable jig frame for ship front pre-rotation guide wheel construction and a manufacturing method thereof, which comprises a support structure mounted on a base, the support structure comprising a support plate b arranged on a support base b, a support plate a arranged on a support base a, and a fixing base arranged on a fixing support base, the support plate a and the support plate b are arc-shaped plates which are upturned on two sides, a cylinder structure is arranged at the bottom of the support plate a and the support plate b, the up-and-down flipping of the support plate a and the support plate b is controlled through the cylinder structure, the support plate a and the support plate b are respectively flipped around the side face top beam of the edge to support the guide wheel above, the support members of the device structure are arranged in blocks, the rotation angle of the support plates on two sides is adjusted, the upper end surface of each support unit is matched with the theoretical linear surface of the target front guide wheel, a temporary support surface matched with the guide wheel is formed, the upper guide wheel component is supported, and subsequent assembly and welding operations are facilitated.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding tooling, and in particular to a flexible adjustable jig for the construction of a ship's forward pre-rotation guide wheel and its manufacturing method. Background Technology

[0002] During the construction of ship guide vanes (guide blades), different ship types require guide vanes with different spatial line structures. Under traditional manufacturing methods, each ship type requires the design and fabrication of a dedicated rigid jig to position and support the guide vane components. Due to the complex curvature and varied lines of the guide vanes, dedicated jigs are difficult to reuse, resulting in a large number of jigs in shipyards, high manufacturing costs, and significant storage space requirements. Furthermore, each change in ship type necessitates the redesign and manufacture of jigs, severely impacting construction cycles and production efficiency.

[0003] Patent application CN203402376U discloses a tooling device in the field of shipbuilding and marine engineering equipment manufacturing, specifically a movable flexible jig that can be adjusted in multiple directions, suitable for the segmented construction of curved and complex sections. The movable flexible jig is characterized by comprising main components such as guide rails, roller sets, jig base, jig surface, and lead screws. The lead screws are distributed on the jig surface, which has grooves. The lead screws can be adjusted longitudinally for lifting and lowering, and laterally for moving along the grooves, achieving the "flexibility" of the jig. Adjusting the lifting and lowering of the lead screws and the lead screw spacing adapts to hull sections with different curvatures. The jig surface is fixed to the jig base by supports, and the jig base is equipped with roller sets that move along the guide rails. The constructed sections are moved along the tracks to the slipway or dry dock for assembly. The jig after removing the sections can be reconstructed and reused, eliminating the need to grind smooth weld spots, resulting in high precision, shortening jig manufacturing time, and greatly improving the market competitiveness of shipyards.

[0004] The existing support structure is a single, integrated structure, which makes it difficult to form a temporary support profile that matches the guide wheel during its construction and use, resulting in low support stability.

[0005] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a flexible and adjustable jig for the construction of a ship's front pre-rotation guide wheel and its manufacturing method. It can quickly adjust its support surface shape according to different spatial lines of the front guide wheel / guide vane, so that one jig can adapt to the construction of guide wheels with multiple line shapes.

[0007] The technical solution adopted in this invention is: A flexible adjustable jig for constructing a ship's forward pre-rotating guide wheel includes a support structure mounted on a base. The support structure includes a support plate b on a support seat b, a support plate a on a support seat a, and a fixed seat on a fixed support seat. Support plates a and b are arc-shaped plates with upturned sides. A cylinder structure is provided at the bottom of support plates a and b. The cylinder structure controls the up-and-down flipping of support plates a and b, causing support plates a and b to rotate around the side top beams of their edges, thus supporting the guide wheel above.

[0008] By adopting the above structure, the supporting components of the device structure are set in blocks. By adjusting the rotation angle of the two side support plates, the upper end surface of each support unit is made to fit the theoretical linear curved surface of the target front guide wheel, forming a temporary support surface that matches the guide wheel, supporting the upper guide wheel component, which facilitates the construction of the guide wheel and subsequent assembly and welding operations.

[0009] Preferably, 3-4 cylinder structures are provided at the bottom of support plate a and support plate b, and the cylinder structures are evenly distributed. Each cylinder structure includes a cylinder mounting seat, a support shaft, and a top slide head. The cylinder mounting seat contains a cylinder and is connected to the support shaft at the top to control the vertical extension and retraction of the support shaft. The top of the support shaft is a hemispherical top slide head.

[0010] Preferably, the top sliding head is located at the bottom outer side of support plate a and support plate b, and is embedded in the bottom of support plate a and support plate b. The cylinder structure is controlled by the cylinder, and the support shaft extends and retracts up and down to control the flipping angle of support plate a and support plate b.

[0011] By adopting the above structure, a cylinder structure is set at the bottom of the outer side of the two support plates, which facilitates the flipping of the support plates. In addition, a top slide head is set at the top of the support shaft, which reduces the vibration amplitude of the support plate flipping and the vibration between the structures, resulting in better stability during use.

[0012] Preferably, the side top beam is located below the opposite edges of the support plate a and the support plate b. A connecting rod is provided in the side top beam. The end of the connecting rod is located in the groove starting from the lower part of the side top beam. The end of the connecting rod is connected to the top shaft below. The top shaft is set on the cylinder seat. The cylinder seat is set and installed on the support base b.

[0013] By adopting the above structure, the side top beams set at the edge of the support plate can be lifted by the lower top shaft, making the support structure fit the guide wheel component more closely and facilitating subsequent assembly and welding operations.

[0014] Preferably, the fixed support is located between support b and support a, and the upper fixed support is provided with a plurality of evenly arranged support rods. Vertical rods are sleeved on the support rods, and the height of the top of the vertical rod sleeved on the support rod is not lower than the lowest position of the two side support plates.

[0015] By adopting the above structure, the central structure is provided with support force during subsequent operation of the guide wheel, and the structure has better support performance during operation.

[0016] Preferably, both support base b and support base a are provided with a sliding groove at their bottom and a lifting device on their outer side. The sliding groove is perpendicular to the fixed support base, and a slider is provided on the base opposite to the sliding groove. Support base b and support base a can slide on the base by being pulled by the side lifting device.

[0017] By adopting the above structure, the structure is more convenient to use, the components are easier to move, and the operation efficiency is higher.

[0018] A preferred method for manufacturing a flexible adjustable jig for constructing a ship's forward pre-spin guide wheel includes the following steps: Step 1: Set up the jig in the work area according to the design requirements, and place the base in the corresponding usage area; Step 2: Place the manufactured support base b, fixed support base, and support base a on the surface of the base in sequence. The bottom grooves of support base b and support base a are correspondingly set on the slider of the base. Step 3: Sequentially fix the cylinder mounting base, the fixed base, and the cylinder mounting base on the support base b, the fixed support base, and the support base a; and set the mounting base on the edge opposite to the support base b and the support base a. Step 4: Adjust the height of the support shaft of the cylinder mounting seat on support base b and support base a to ensure that the height is consistent. Adjust the height of the top shaft on both sides of the mounting base to ensure that the height is consistent. Step 5: Lift support seat b and support seat a in sequence and install them on the bottom cylinder structure. Ensure that the bottom surface of the support seat is embedded with the top slide head of the support shaft, and ensure that the end of the connecting rod in the side top beam of the support seat edge is connected to the top of the top shaft.

[0019] By adopting the above method, the device is easy to install and manufacture. Each component is prefabricated and fixedly installed after passing the inspection. The structure is installed in an orderly manner from the bottom base upwards, making operation convenient.

[0020] Compared with the prior art, the present invention has the following advantages: 1. The supporting components of the device structure of the present invention are arranged in blocks. By adjusting the rotation angle of the two side support plates, the upper end surface of each support unit is made to fit the theoretical linear curved surface of the target front guide wheel, forming a temporary support surface that matches the guide wheel, supporting the upper guide wheel component, which facilitates the construction of the guide wheel and facilitates subsequent assembly and welding operations.

[0021] 2. The device of the present invention has a cylinder structure set at the bottom of the outer side of the two support plates, which facilitates the flipping of the support plates. The top slide head set at the top of the support shaft reduces the vibration amplitude of the support plate flipping and the vibration between the structures, resulting in better stability during use. The side top beam set at the edge of the support plate can be lifted by the lower top shaft, making the support structure fit the guide wheel component more closely, which facilitates subsequent assembly and welding operations.

[0022] 3. The device of the present invention is easy to install and manufacture. Each component is prefabricated and fixedly installed after passing the inspection. The structure is installed in an orderly manner from the bottom base upwards, making it easy to operate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the cylinder structure at the bottom of the support plate of the present invention; Figure 3 This is a schematic diagram of the structure at the bottom of the side top beam of the present invention; Figure 4 This is a schematic diagram of the connection of the connecting rod of the present invention.

[0024] The components are: 1. Support plate a; 2. Support plate b; 3. Vertical rod; 4. Cylinder mounting seat; 5. Support seat b; 6. Fixed support seat; 7. Support seat a; 8. Base; 9. Support rod; 10. Slider; 11. Slide groove; 12. Lifting device; 13. Support shaft; 14. Top slide head; 15. Mounting base; 16. Side top beam; 17. Connecting rod; 18. Top shaft; 19. Cylinder seat; 20. Fixed seat. Detailed Implementation

[0025] like Figure 1-4 As shown, a flexible adjustable jig for constructing a pre-rotating guide wheel for ships includes a support structure mounted on a base 8. The support structure comprises a support plate b2 on a support seat b5, a support plate a1 on a support seat a7, and a fixed seat 20 on a fixed support seat 6. Support plates a1 and b2 are arc-shaped plates with upturned sides. A cylinder structure is installed at the bottom of support plates a1 and b2, controlling their up-and-down rotation to rotate them around the side beam 16 at their edges, thus supporting the guide wheel above. The support components of the device structure are arranged in sections. By adjusting the rotation angle of the two side support plates, the upper surface of each support unit conforms to the theoretical linear curved surface of the target pre-rotating guide wheel, forming a temporary support profile that matches the guide wheel, supporting the upper guide wheel components, facilitating guide wheel construction, and subsequent assembly and welding operations.

[0026] Three to four cylinder structures are evenly distributed at the bottom of support plates a1 and b2. Each cylinder structure includes a cylinder mounting base 4, a support shaft 13, and a top slide head 14. The cylinder mounting base 4 houses a cylinder and is connected to the support shaft 13 at its upper part, controlling the vertical extension and retraction of the support shaft 13. The top of the support shaft 13 is a hemispherical top slide head 14. The top slide head 14 is positioned at the bottom outer side of support plates a1 and b2, embedded in their bottom surfaces. The cylinder structures are controlled by the cylinders, allowing the support shaft 13 to extend and retract vertically, thus controlling the rotation angle of support plates a1 and b2. The cylinder structures at the bottom outer side of the two support plates facilitate rotation, and the top slide head at the top of the support shaft minimizes vibration during rotation, reducing vibration during structural adjustments and improving stability during use.

[0027] Below the opposite edges of support plates a1 and b2 are side top beams 16. A connecting rod 17 is installed within the side top beam 16, with its end located in a groove starting at the lower part of the side top beam 16. The end of the connecting rod 17 connects to a lower top shaft 18, which is mounted on a cylinder seat 19, which is installed on support base b5. The side top beams 16, located at the edges of the support plates, can be lifted by the lower top shaft 18, making the support structure fit the guide wheel components more closely and facilitating subsequent assembly and welding operations.

[0028] The fixed support 6 is located between support b5 and support a7. The upper fixed base 20 has multiple evenly arranged support rods 9, with vertical rods 3 fitted onto each support rod 9. The top of the vertical rod 3 fitted onto the support rod 9 is not lower than the lowest point of the two side support plates. During subsequent operation of the guide wheel, the device provides support to the central structure, resulting in better structural support performance during operation.

[0029] Both support base b5 and support base a7 have a sliding groove 11 at their bottom and a lifting device 12 on their outer side. The sliding groove 11 is perpendicular to the fixed support base 6. A slider 10 is provided on the base 8 opposite to the sliding groove 11. Support base b5 and support base a7 can slide on the base 8 by being pulled by the side lifting device 12. The structure is more convenient to use, the parts are easier to move, and the operation efficiency is higher during use.

[0030] A method for manufacturing a flexible adjustable jig for constructing a ship's forward pre-spin guide wheel includes the following steps: Step 1: Set up the jig in the work area according to the design requirements, and place the base 8 in the corresponding usage area; Step 2: The fabricated support base b5, fixed support base 6, and support base a7 are sequentially placed on the surface of the base 8. The sliding grooves 11 at the bottom of support base b5 and support base a7 are correspondingly placed on the slider 10 of the base 8. Step 3: Fix the cylinder mounting base 4, the fixed base 20, and the cylinder mounting base 4 sequentially on the support base b5, the fixed support base 6, and the support base a7. Set the mounting base 15 on the edge opposite to the support base b5 and the support base a7. Step 4: Adjust the height of the support shaft 13 on the cylinder mounting seat 4 of the support base b5 and the support base a7 to ensure that the height is consistent. Adjust the height of the top shaft on the mounting bases 15 on both sides to ensure that the height is consistent. Step 5: Lift support base b5 and support base a7 in sequence and install them on the bottom cylinder structure, ensuring that the bottom surface of the support base is embedded with the top slide head 14 at the top of the support shaft 13, and ensuring that the end of the connecting rod 17 in the side top beam 16 at the edge of the support base is connected to the top of the top shaft 18.

[0031] The device is easy to install and manufacture. All components are prefabricated and installed after passing inspection. The structure is installed in an orderly manner from the bottom base upwards, making it easy to operate.

[0032] When in use, this device can quickly adjust its support surface shape according to different spatial lines of the front guide wheel (guide vane), thus enabling a single jig to adapt to the construction of guide wheels with various line shapes. The device has strong support force and stability, convenient structural adjustment, compact connections between components, convenient device layout, and is more convenient to use.

[0033] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should be included within the scope of protection defined by the claims of the present invention.

Claims

1. A flexible adjustable jig for constructing a ship's forward pre-spin guide wheel, comprising a support structure mounted on a base, characterized in that: The support structure includes a support plate b on a support seat b, a support plate a on a support seat a, and a fixed seat on a fixed support seat. The support plate a and the support plate b are arc-shaped plates with upturned sides. A cylinder structure is provided at the bottom of the support plate a and the support plate b. The cylinder structure controls the up and down flipping of the support plate a and the support plate b, so that the support plate a and the support plate b flip around the side top beam of the edge respectively, supporting the guide wheel above.

2. The flexible adjustable jig for constructing a ship's forward-rotating guide wheel according to claim 1, characterized in that: The support plate a and support plate b have 3-4 cylinder structures at their bottoms, which are evenly distributed. Each cylinder structure includes a cylinder mounting base, a support shaft, and a top slide head. The cylinder mounting base contains a cylinder and is connected to the support shaft at the top to control the vertical extension and retraction of the support shaft. The top of the support shaft is a hemispherical top slide head.

3. The flexible adjustable jig for constructing a ship's forward-rotating guide wheel according to claim 2, characterized in that: The top sliding head is located on the outer bottom of support plate a and support plate b, and is embedded in the bottom of support plate a and support plate b. The cylinder structure is controlled by the cylinder, and the support shaft extends and retracts up and down to control the flipping angle of support plate a and support plate b.

4. The flexible adjustable jig for constructing a ship's forward-rotating guide wheel according to claim 1, characterized in that: Below the opposite edges of the support plate a and support plate b are side top beams. A connecting rod is provided in the side top beam. The end of the connecting rod is located in the groove starting from the lower part of the side top beam. The end of the connecting rod is connected to the top shaft below. The top shaft is set on the cylinder seat. The cylinder seat is set and installed on the support base b.

5. The flexible adjustable jig for constructing a ship's forward-rotating guide wheel according to claim 1, characterized in that: The fixed support is located between support b and support a. The upper fixed support is provided with a plurality of evenly arranged support rods. Vertical rods are sleeved on the support rods. The height of the top of the vertical rod sleeved on the support rod is not lower than the lowest position of the two side support plates.

6. The flexible adjustable jig for constructing a ship's forward-rotating guide wheel according to claim 1, characterized in that: Both support base b and support base a are provided with sliding grooves at their bottoms and with lifting devices on their outer sides. The sliding grooves are perpendicular to the fixed support bases, and sliders are provided on the base opposite to the sliding grooves. Support base b and support base a can slide on the base by being pulled by the side lifting devices.

7. The method for manufacturing a flexible adjustable jig for constructing a ship's forward pre-rotation guide wheel according to claim 1, characterized in that: Includes the following steps: Step 1: Set up the jig in the work area according to the design requirements, and place the base in the corresponding usage area; Step 2: Place the manufactured support base b, fixed support base, and support base a on the surface of the base in sequence. The bottom grooves of support base b and support base a are correspondingly set on the slider of the base. Step 3: Sequentially fix the cylinder mounting base, the fixed base, and the cylinder mounting base on the support base b, the fixed support base, and the support base a; and set the mounting base on the edge opposite to the support base b and the support base a. Step 4: Adjust the height of the support shaft of the cylinder mounting seat on support base b and support base a to ensure that the height is consistent. Adjust the height of the top shaft on both sides of the mounting base to ensure that the height is consistent. Step 5: Lift support seat b and support seat a in sequence and install them on the bottom cylinder structure. Ensure that the bottom surface of the support seat is embedded with the top slide head of the support shaft, and ensure that the end of the connecting rod in the side top beam of the support seat edge is connected to the top of the top shaft.

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