Positioning tool for ship section processing

Abstract

The present application relates to ship welding positioning tooling technical field, specifically puts forward a kind of positioning tooling for ship section processing, including mounting frame, can be in the top of side plate and along the side plate installation direction movement, the surface of the mounting frame is installed with the top frame capable of lifting, the surface of the mounting frame is installed with the side frame capable of lateral extension, multiple positioning top clamps, installation in the surface of the top frame, the positioning top clamp includes top clamp plate;The present application is positioned by setting top clamp, positioning side clamp, first adjusting part and second adjusting part, when deviation is found after rough positioning, only need to reverse rotation corresponding first adjusting part and second adjusting part to loosen positioning plate, in the case where the overall tooling is not disassembled and other positioning points are not released, the position of side plate is independently fine-tuned, after adjustment is completed, again positive rotation bolt can be reattached, multi-dimensional synchronous positioning of left and right direction and side direction of top of ship side plate is realized, positioning accuracy and efficiency are improved.

Description

Technical Field

[0001] This invention relates to the field of ship welding positioning fixtures technology, and specifically proposes a positioning fixture for ship section processing. Background Technology

[0002] In the construction of ship sections, the welding and positioning of the hull side plates is one of the key processes in the section processing. The positioning accuracy of the side plates before welding directly affects the efficiency of subsequent assembly and the overall quality of the hull structure. Currently, side plate positioning mainly relies on manual string lines, plumb bobs, steel ruler measurements, and temporary support rods for fixation, supplemented by total station measurements in some cases.

[0003] Traditional methods rely on support rods or temporary spot welding for fixation. Before or in the early stages of welding, the side plates are prone to displacement due to hoisting vibration, welding thermal stress, or human operation, making it difficult to maintain the initial positioning. When deviations are found after rough positioning, existing methods (such as wedges and jacks) require all constraints to be released and readjusted. It is impossible to perform reversible fine adjustments while maintaining a close fit, resulting in repeated trial and error and low efficiency. Furthermore, due to the large height of the side plates, scaffolding or high-altitude equipment must be erected for top positioning, making the adjustment process quite cumbersome.

[0004] Therefore, there is an urgent need for a positioning fixture that can ensure higher welding positioning accuracy and is more convenient to use during the segmented welding process of ship side plates. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a positioning fixture for ship section processing, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention employs the following technical solution: a positioning fixture for ship section processing, used for welding positioning of ship side plates, comprising a mounting frame capable of moving on the top of the side plate and along the side plate installation direction; a lifting top frame mounted on the surface of the mounting frame, and a side frame capable of lateral extension mounted on the surface of the mounting frame; multiple positioning top clamps mounted on the surface of the top frame, each positioning top clamp comprising a top clamp plate, with two first positioning plates installed inside the top clamp plate, and a first adjusting member mounted on the surface of the top clamp plate for adjusting the first positioning plates to fit against the left and right sides of the side plate; multiple positioning side clamps mounted on the surface of the side frame, each positioning side clamp comprising a side clamp plate, with two second positioning plates installed inside the side clamp plate, and a second adjusting member mounted on the surface of the side clamp plate for adjusting the second positioning plates to fit against the upper and lower surfaces of the side plate; and a first magnetic suction member connected to the side plate mounted on the surface of both the positioning top clamp and the positioning side clamp.

[0007] Preferably, the first adjusting member includes two first bolts, the two first bolts being threaded through two first positioning plates, and the first bolts being rotatably mounted on the surface of the top clamping plate via a first bearing.

[0008] Preferably, the second adjusting member includes two second bolts, which are threaded through two second positioning plates and are rotatably mounted on the surface of the side clamping plate via a second bearing.

[0009] Preferably, two push rods are fixedly mounted on the surface of the mounting bracket, and an L-shaped first connecting plate is fixedly mounted on the output shaft end of the push rod. The first connecting plate is fixedly mounted on the surface of the top frame.

[0010] Preferably, an L-shaped second connecting plate is fixedly mounted on the surface of the mounting bracket, and a U-shaped frame is fixedly mounted on the surface of the side frame. A threaded rod is installed inside the U-shaped frame, and the threaded rod threaded through the surface of the second connecting plate.

[0011] Preferably, the surface of the mounting bracket is provided with a guide groove, an electric slider is installed inside the guide groove, and an automatic tightening machine is installed on the surface of the electric slider.

[0012] Preferably, guide blocks are installed on the surfaces of the positioning top clamp and the positioning side clamp, and T-shaped grooves are opened at corresponding positions of the side frame and the top frame, with the guide blocks movably installed inside the T-shaped grooves.

[0013] Preferably, a second magnetic element is installed on the surface of the guide block for fixing the guide block inside the T-slot.

[0014] Preferably, the mounting frame is fixedly mounted with wheels, and a third magnetic suction element is mounted on the surface of the mounting frame.

[0015] The above technical solution has the following advantages or beneficial effects:

[0016] 1. This invention provides a positioning fixture for ship section processing. By setting a positioning top clamp, a positioning side clamp, a first adjusting component, and a second adjusting component, when a deviation is found after rough positioning, the positioning plate can be loosened by simply rotating the corresponding first and second adjusting components in the opposite direction. Without disassembling the fixture as a whole or releasing other positioning points, the position of the side plate can be independently fine-tuned. After adjustment, the bolt can be rotated forward again to re-fit. This achieves multi-dimensional synchronous positioning of the top of the ship's side plate in the left-right direction and the side in the up-down direction, improving positioning accuracy and efficiency.

[0017] 2. This invention provides a positioning fixture for ship section processing. It is installed on the top of the reference side plate. The lifting and lowering of the top frame, the extension of the side frame, the adjustment of the positioning top clamp and the positioning side clamp, and the tightening of bolts are all completed by electrical control on the ground or at low altitude. Workers can complete the top positioning without erecting scaffolding or using high-altitude equipment, which makes the positioning more efficient and safer to use. Attached Figure Description

[0018] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings, which are not intentionally drawn to scale; the focus is on illustrating the spirit of the invention.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a positioning fixture for ship section processing provided by the present invention;

[0020] Figure 2 This is a schematic diagram of the clamping structure of the top positioning clamp and the side positioning clamp;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the positioning side clamp;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the positioning top clamp;

[0023] Figure 5 This is a schematic diagram of the mounting bracket in its working state;

[0024] Figure 6 This is a schematic diagram of the three-dimensional structure in the clamping state;

[0025] Figure 7 This is a schematic diagram of the three-dimensional structure in the non-clamped state.

[0026] In the diagram: 1. Mounting bracket; 2. Top bracket; 3. Side bracket; 4. Positioning top clamp; 41. Top clamp plate; 42. First positioning plate; 43. First adjusting component; 431. First bolt; 432. First bearing; 5. Positioning side clamp; 51. Side clamp plate; 52. Second positioning plate; 53. Second adjusting component; 531. Second bolt; 532. Second bearing; 6. First magnetic suction component; 7. Push rod; 8. First connecting plate; 9. Second connecting plate; 10. U-shaped frame; 11. Threaded rod; 12. Guide groove; 13. Electric slider; 14. Automatic tightening machine; 15. Guide block; 16. T-slot; 17. Second magnetic suction component; 18. Traveling wheel; 19. Third magnetic suction component. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figure 1 and Figure 5 As shown, this invention provides a positioning fixture for ship section processing, including a mounting frame 1, which serves as the integral load-bearing base of the fixture. Four wheels 18 are fixedly mounted on the bottom of the mounting frame 1, arranged in a rectangular pattern to ensure the stability of the mounting frame 1 when moving on top of the side plate. A third magnetic element 19, which is an electromagnet, is mounted on the surface of the mounting frame 1. When energized, the electromagnet adheres to the surface of the side plate, preventing the mounting frame 1 from tipping over or shifting during movement or operation.

[0030] It should be noted that there are 2-6 electromagnets, evenly distributed on the bottom surface of mounting bracket 1. The attraction force of each electromagnet is 50kg-200kg, and the total attraction force is more than 3 times the weight of the fixture itself to ensure the stability of the attraction.

[0031] like Figure 6 and Figure 7 As shown, a top frame 2 is mounted on the upper surface of the mounting frame 1, and the top frame 2 can be raised and lowered relative to the mounting frame 1. Specifically, two push rods 7 are fixedly mounted on the surface of the mounting frame 1, and the two push rods 7 are arranged symmetrically. In this embodiment, the push rods 7 are preferably electric push rods or hydraulic push rods. An L-shaped first connecting plate 8 is fixedly mounted on the end of the output shaft of each push rod 7. The vertical section of the first connecting plate 8 is fixedly connected to the output shaft of the push rod 7, and the horizontal section of the first connecting plate 8 is fixedly mounted on the bottom surface of the top frame 2. The two push rods 7 move synchronously, driving the top frame 2 to rise and fall smoothly relative to the mounting frame 1.

[0032] A side frame 3 is also mounted on the upper surface of the mounting bracket 1, and the side frame 3 can extend laterally relative to the mounting bracket 1. Specifically, an L-shaped second connecting plate 9 is fixedly mounted on the surface of the mounting bracket 1. The horizontal section of the second connecting plate 9 is fixed to the surface of the mounting bracket 1, and the vertical section of the second connecting plate 9 has a threaded hole. A U-shaped frame 10 is fixedly mounted on the surface of the side frame 3. A threaded rod 11 is installed between the two side walls of the U-shaped frame 10. The two ends of the threaded rod 11 are rotatably mounted on the U-shaped frame 10 through bearings, and the thread in the middle of the threaded rod 11 passes through the threaded hole of the second connecting plate 9. When the threaded rod 11 is rotated, the threaded rod 11 drives the U-shaped frame 10 and the side frame 3 to move laterally relative to the second connecting plate 9, thereby driving the side frame 3 to extend or retract laterally relative to the mounting bracket 1.

[0033] like Figures 1-4 As shown, the surface of the top frame 2 is equipped with multiple positioning clamps 4 for clamping the tops of the side plates from the left and right sides, positioning them between adjacent side plates. Each positioning clamp 4 includes a clamping plate 41, which has an inverted U-shaped structure and contains two first positioning plates 42. The two first positioning plates 42 are arranged opposite each other, located on the left and right sides of the side plate to be installed. The surface of the clamping plate 41 is equipped with a first adjusting member 43 for adjusting the two first positioning plates 42 to move simultaneously towards the center or to the sides. The first adjusting member 43 includes two first bolts 431, which are threaded through the two first positioning plates 42 respectively. The inner ends of the first bolts 431 are rotatably mounted on the surface of the clamping plate 41 via first bearings 432. When the first bolts 431 are rotated, the first positioning plates 42 move along the axial direction of the first bolts 431. Since the threads of the two first bolts 431 are opposite, rotating one first bolt 431 can drive the two first positioning plates 42 to move synchronously towards or away from each other.

[0034] Multiple positioning side clamps 5 are fixedly mounted on the surface of the side frame 3 for clamping the sides of the side plates from the upper and lower surfaces, and in the same way, clamping between two adjacent side plates. Each positioning side clamp 5 includes a side clamping plate 51, which has a C-shaped structure and two second positioning plates 52 installed inside. The two second positioning plates 52 are arranged opposite each other and are located abutting against the upper and lower surfaces of the mounted side plates. A second adjusting member 53 is mounted on the surface of the side clamping plate 51 for adjusting the two second positioning plates 52 to move simultaneously toward the center or to the sides. The second adjusting member 53 includes two second bolts 531, which are threaded through the two second positioning plates 52 respectively. The inner ends of the second bolts 531 are rotatably mounted on the surface of the side clamping plate 51 through second bearings 532. When the second bolts 531 are rotated, the second positioning plates 52 move along the axial direction of the second bolts 531. The threads of the two second bolts 531 are opposite, and rotating one second bolt 531 can drive the two second positioning plates 52 to move synchronously toward or away from each other.

[0035] The top positioning clamp 4 and the side positioning clamp 5 are both equipped with a first magnetic attractor 6. The first magnetic attractor 6 is an electromagnet. When the first positioning plate 42 or the second positioning plate 52 moves into place and adheres to the side plate, the first magnetic attractor 6 is energized and attracts to the surface of the side plate, so that the top positioning clamp 4 and the side positioning clamp 5 remain in contact with the side plate, thereby positioning the top positioning clamp 4 and the side positioning clamp 5 in the required position.

[0036] Guide blocks 15 are fixedly installed on the surfaces of both the top clamping plate 41 and the side clamping plate 51. A second magnetic attractor 17 is installed on the surface of each guide block 15. The second magnetic attractor 17 is an electromagnet. When the guide block 15 slides to the desired position within the T-slot 16, the second magnetic attractor 17 is energized and attracts to the inner wall of the T-slot 16, thus fixing the guide block 15. This is mainly used for the subsequent recycling and reuse of the positioning top clamp 4 and the positioning side clamp 5.

[0037] like Figures 2-5 As shown, T-slots 16 are provided at the corresponding positions of the guide blocks 15 on both the side frame 3 and the top frame 2. The T-slots 16 extend along the length of either the side frame 3 or the top frame 2. The shape of the guide block 15 matches the T-slot 16, and the guide block 15 is movably installed inside the T-slot 16, allowing it to slide along the T-slot 16. By sliding the guide block 15, the installation position of the positioning top clamp 4 on the top frame 2 and the installation position of the positioning side clamp 5 on the side frame 3 can be adjusted, thereby adapting to the positioning point distribution of side plates of different specifications.

[0038] The mounting bracket 1 has a guide groove 12 on its surface, extending along the length of the mounting bracket 1. An electric slider 13 is installed inside the guide groove 12, and can move along its length within the guide groove 12. An automatic tightening machine 14 is mounted on the surface of the electric slider 13. The automatic tightening machine 14 is an electric screwdriver or electric wrench, and its output end can be fitted with different sized sockets for automatically tightening the first bolt 431 or the second bolt 531. The electric slider 13 drives the automatic tightening machine 14 to move along the guide groove 12, sequentially reaching the positions of each positioning top clamp 4 and positioning side clamp 5, thereby achieving automatic adjustment of the positioning top clamp 4 and positioning side clamp 5.

[0039] The positioning fixture in this embodiment is installed and used in the following sequence:

[0040] The first side plate (serving as the reference side plate) is fixed to the slipway or jig according to design requirements, ensuring that its position and orientation meet the accuracy requirements. This reference side plate will serve as the reference for the installation of all subsequent side plates;

[0041] The mounting bracket 1 is hoisted to the top of the reference side plate, so that the traveling wheels 18 contact the top surface of the side plate. The mounting bracket 1 is pushed along the length of the side plate to move it to the first position to be welded. After reaching the working position, the third magnetic suction component 19 is energized to attract and fix the mounting bracket 1 to the surface of the reference side plate, preventing the tooling from moving or tipping over.

[0042] Activate the two push rods 7, which extend or retract synchronously to drive the top frame 2 to rise and fall. When the top frame 2 rises and falls to the set height, the push rods 7 stop moving. Rotate the threaded rod 11, which drives the U-shaped frame 10 and the side frame 3 to move laterally relative to the second connecting plate 9, ensuring that the horizontal distance between the side frame 3 and the reference side plate meets the requirements.

[0043] The second side panel (the side panel to be installed) is hoisted to the side of the reference side panel using hoisting equipment, so that the second side panel is roughly aligned with the reference side panel. At this time, the top of the second side panel is below the top frame 2, and the side of the second side panel is inside the opening of the side frame 3. At this point, the side panel to be installed is in rough positioning.

[0044] Start the electric slider 13. The electric slider 13 drives the automatic tightening machine 14 to move along the guide groove 12 to the corresponding positioning top clamp 4 and positioning side clamp 5. The output end of the automatic tightening machine 14 is connected to the first bolt 431. Start the automatic tightening machine 14 and rotate the first bolt 431. Since the threads of the two first bolts 431 are opposite, the rotation drives the two first positioning plates 42 to move synchronously towards the middle until the two first positioning plates 42 respectively attach to the top of the second side plate from the left and right sides. During this process, the position of the side plate to be installed is continuously checked.

[0045] At the same time, the output end of the automatic tightening machine 14 is connected to the second bolt 531, and the automatic tightening machine 14 is started to rotate the second bolt 531. Since the threads of the two second bolts 531 are opposite, the rotation drives the two second positioning plates 52 to move synchronously towards the middle until the two second positioning plates 52 respectively attach to the sides of the second side plate from the upper and lower surfaces, and cooperate with the positioning top clamp 4 to continuously calibrate the position of the side plate to be installed;

[0046] When the second magnetic component 17 is de-energized, the first magnetic component 6 is energized to attract and fix the positioning top clip 4 and the positioning side clip 5 to the surface of the side plate, maintaining a close fit.

[0047] Mounting bracket 1 retracts until positioning top clamp 4 and positioning side clamp 5 disengage from the T-groove 16 of top bracket 2 and side bracket 3. Two push rods 7 extend synchronously, driving top bracket 2 to rise until unused positioning top clamp 4 is away from the position of used positioning top clamp 4. At the same time, threaded rod 11 is rotated, driving U-shaped bracket 10 and side bracket 3 to move laterally relative to second connecting plate 9 until unused positioning side clamp 5 is away from the position of used positioning side clamp 5.

[0048] After the position of the second side plate passes inspection, spot welding is performed for positioning. After spot welding, the welding thermal stress will cause slight shrinkage deformation of the weld. The third magnetic suction component 19 is de-energized, releasing the mounting bracket 1 from the reference side plate. The mounting bracket 1 moves to the surface of the second side plate, and the above operation is repeated.

[0049] After all side panels are installed, lift the mounting bracket 1 from the top of the reference side panel. Inspect the wear of each component, such as the positioning top clamp 4, positioning side clamp 5, guide block 15, and T-slot 16, and replace or lubricate them if necessary. Replenish the power or air supply of the automatic tightening machine 14, and clean the surfaces of the first magnetic suction component 6, the second magnetic suction component 17, and the third magnetic suction component 19 to ensure reliability for the next use.

[0050] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0051] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0052] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a manner common to the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of the present invention, or equivalent embodiments with equivalent changes, do not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A positioning fixture for ship section processing, used for welding positioning of ship side plates, characterized in that: include The mounting bracket is movable on the top of the side panel and along the side panel mounting direction. The surface of the mounting bracket is equipped with a liftable top bracket and a side bracket that can extend laterally. Multiple positioning clamps are installed on the surface of the top frame. Each positioning clamp includes a top clamp plate. Two first positioning plates are installed inside the top clamp plate. A first adjusting member is installed on the surface of the top clamp plate for adjusting the first positioning plates to fit against the left and right sides of the side plate. Multiple positioning side clamps are installed on the surface of the side frame. Each positioning side clamp includes a side clamp plate. Two second positioning plates are installed inside the side clamp plate. A second adjusting member is installed on the surface of the side clamp plate to adjust the second positioning plates to fit against the upper and lower surfaces of the side plate. The surfaces of the positioning top clamp and the positioning side clamp are each equipped with a first magnetic suction element that connects to the side plate, which is used to releasably and magnetically fix the positioning top clamp and the positioning side clamp to the surface of the side plate.

2. The positioning fixture for ship section processing according to claim 1, characterized in that: The first adjusting component includes two first bolts, which are threaded through two first positioning plates and are rotatably mounted on the surface of the top clamping plate via a first bearing.

3. The positioning fixture for ship section processing according to claim 1, characterized in that: The second adjusting component includes two second bolts, which are threaded through two second positioning plates and are rotatably mounted on the surface of the side clamping plate via second bearings.

4. The positioning fixture for ship section processing according to claim 1, characterized in that: Two push rods are fixedly mounted on the surface of the mounting bracket. An L-shaped first connecting plate is fixedly mounted on the output shaft end of each push rod. The first connecting plate is fixedly mounted on the surface of the top frame.

5. A positioning fixture for ship section processing according to claim 1, characterized in that: An L-shaped second connecting plate is fixedly mounted on the surface of the mounting bracket, and a U-shaped frame is fixedly mounted on the surface of the side frame. A threaded rod is installed inside the U-shaped frame, and the threaded rod threaded through the surface of the second connecting plate.

6. A positioning fixture for ship section processing according to claim 1, characterized in that: The mounting bracket has a guide groove on its surface, an electric slider is installed inside the guide groove, and an automatic tightening machine is installed on the surface of the electric slider.

7. A positioning fixture for ship section processing according to claim 1, characterized in that: Guide blocks are installed on the surfaces of the positioning top clamp and the positioning side clamp. T-shaped grooves are opened at corresponding positions of the side frame and the top frame. The guide blocks are movably installed inside the T-shaped grooves.

8. A positioning fixture for ship section processing according to claim 7, characterized in that: The surface of the guide block is equipped with a second magnetic chuck for fixing the guide block inside the T-slot.

9. A positioning fixture for ship section processing according to claim 1, characterized in that: The mounting frame is fixedly equipped with wheels, and a third magnetic suction element is also mounted on the surface of the mounting frame.

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