Precision control device for ship block assembly

Abstract

The invention relates to the technical field of ship construction, and discloses a precision control device for ship block assembly, which comprises a base, a positioning rod and a movable seat, the movable seat is slidably assembled on the positioning rod along the vertical direction, the base and the movable seat are used for clamping a block deck along the vertical direction, the base is provided with a first reference surface, and the first reference surface is provided with a second reference surface; the positioning rod is provided with a first reference surface, the first reference surface is used for being attached to a segmented structural wall plate in the horizontal direction, the positioning rod is provided with a second reference surface, the second reference surface is used for being attached to the end of a segmented deck in the horizontal direction, the first reference surface is perpendicular to the second reference surface, and the movable seat is provided with a reference line used for being attached to the deck; the datum line is further provided with a datum point, and the datum point and the second datum plane are coplanar. The reference point is the projection position of the intersection point of the structural wall plate and the deck on the deck, and can be used as a measurement point, so that errors caused by manual measurement are avoided, the measurement precision during segment total assembly is improved, the workload of personnel is reduced, and the measurement efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of shipbuilding, and in particular to a precision control device for ship section assembly. Background Art

[0002] Modern shipbuilding mostly adopts a segmented process, which divides the hull structure into multiple independent segments for prefabrication. Each segment must pass three-dimensional precision testing and can enter the subsequent process only after passing the test. The qualified segments are combined into large-scale assembly segments (usually composed of 2-4 segments) through the ground assembly process. Each large-scale assembly segment is finally installed as a whole in the dock according to the hoisting sequence.

[0003] When qualified sections are assembled on the ground, the accuracy of the ground assembly directly affects the dock loading efficiency. If there is dimensional deviation or linear error, it will lead to misalignment of the docking interface, causing problems such as cutting repair, steel plate replacement or repeated positioning, which will seriously restrict the construction progress. High-precision assembly sections can achieve fast and accurate docking, significantly reducing the adjustment workload in the dock. Therefore, the accuracy control of the sections during the assembly process is crucial.

[0004] At present, the total station is mainly used to monitor the accuracy of the control segments during the assembly process, and to control four key indicators such as flatness, horizontality, structural spacing and overall size to ensure that the accuracy of the assembly meets the requirements. When using the total station to control the above key indicators, measurement points are selected on two adjacent segments, and the measurement points are used as the reference for detection. Specifically, the total station is set up on the decks of the two segments, and a coordinate system is established with the center line of the total segment as the reference line. The required measurement points on the deck surface are measured through reflective sheets.

[0005] However, when selecting a hard-block point supported by a strong wall panel as the measuring point, since the structural wall panel is located below the deck, the total station cannot directly measure the actual position points of the left and right edges of the wall panel. Therefore, the surveyor usually extends the edge position lead of the structural wall panel to the corresponding end point of the deck surface, and selects the position above the groove at the end of the deck structure for indirect measurement, that is, selects the projection position of the edge position of the structural wall panel at the end of the deck as the measuring point.

[0006] When the above measurement method directly measures the shorter side of the deck groove, due to the inconsistent notch angles, the measurement results cannot accurately reflect the actual flatness between the segments, resulting in low measurement accuracy. At the same time, for segments with more structural wall panels and requiring the selection of multiple measurement points, each measurement point needs to be manually marked to measure the corresponding endpoint on the deck. The manual measurement process is cumbersome and time-consuming, affecting the overall measurement efficiency. In addition, manual measurement requires the operator to have higher skills and experience, which increases the uncertainty of the measurement results. Summary of the invention

[0007] The object of the present invention is to provide an accuracy control device for the overall assembly of ship sections, so as to solve the problems of low measurement accuracy of the measurement points of the structural wall panels during the overall assembly of sections and low manual measurement efficiency in the prior art.

[0008] To achieve the above object, the present invention provides an accuracy control device for the overall assembly of ship sections, including a base, a positioning rod and a movable seat. The movable seat is slidably assembled on the positioning rod in the vertical direction. The base and the movable seat are used to clamp the deck of the section in the vertical direction. The base has a first reference plane, and the first reference plane is used to fit the structural wall panel of the section in the horizontal direction. The positioning rod has a second reference plane, and the second reference plane is used to fit the end of the deck of the section in the horizontal direction. The first reference plane and the second reference plane are perpendicular to each other. The movable seat has a reference line for fitting with the deck, the reference line is coplanar with the first reference plane, and a reference point is further provided on the reference line, and the reference point is coplanar with the second reference plane.

[0009] Optionally, the movable seat is provided with an assembly hole penetrating in the vertical direction, the positioning rod is inserted in the assembly hole in the vertical direction, and the movable seat and the positioning rod are in interference fit.

[0010] Optionally, the assembly hole has a reference hole wall that fits with the second reference plane. The movable seat is further provided with a marking line, the marking line is coplanar with the reference hole wall, and the marking line intersects the reference line at the reference point.

[0011] Optionally, the movable seat has a reflective surface, the reflective surface is coplanar with the first reference plane, and the reference line and the indicating line are both located on the reflective surface.

[0012] Optionally, the base is further provided with a third reference plane, and the third reference plane is used to fit the bottom surface of the deck of the section in the vertical direction. The third reference plane is perpendicular to the first reference plane.

[0013] Optionally, the base is further provided with an avoidance notch, and the avoidance notch is located at the intersection of the third reference plane and the first reference plane.

[0014] Optionally, it further includes a magnetic block, and the magnetic block is embedded in the base.

[0015] Optionally, the positioning rod includes a vertical rod and a horizontal rod that are perpendicularly connected to each other. The vertical rod is fixedly connected to the base, the horizontal rod is arranged at one end of the vertical rod away from the base, and the second reference plane is arranged on the vertical rod.

[0016] Compared with the prior art, the precision control device for ship subassembly in the embodiment of the present invention has the following beneficial effects: The movable seat and the base clamp the deck of the subassembly in the vertical direction. The movable seat can be located on the upper side of the deck. Since the reference line on the movable seat fits the deck and the reference line is coplanar with the first reference plane, when the first reference plane of the base fits the structural wall panel, the reference line is the projection line of the structural wall panel on the deck. At the same time, since the second reference plane of the positioning rod fits the end of the deck of the subassembly in the horizontal direction and the reference point is coplanar with the second reference plane, the reference point is simultaneously on the projection line of the end of the deck on the deck. The reference point is the projection position on the deck of the intersection point of the structural wall panel and the deck. The reference point can be used as a measurement point in cooperation with the total station, avoiding the error caused by manual measurement, improving the measurement accuracy during subassembly, reducing the workload of personnel, improving the measurement efficiency, ensuring the accuracy of the detection result, and being suitable for subassembly structures with different groove designs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic structural diagram of the precision control device for ship subassembly of the present invention;

[0018] Figure 2 is Figure 1 a schematic structural diagram of the base of the precision control device for ship subassembly of;

[0019] Figure 3 is Figure 1 a schematic structural diagram of the movable seat of the precision control device for ship subassembly of;

[0020] Figure 4 is Figure 1 a schematic structural diagram of the positioning rod of the precision control device for ship subassembly of;

[0021] Figure 5 FIG. is a schematic diagram of the state of the precision control device for ship subassembly of the present invention during use;

[0022] Figure 6 is Figure 5 a left view of the precision control device for ship subassembly of during use.

[0023] In the figure, 1. base, 11. first reference plane, 12. third reference plane, 13. avoidance notch, 2. positioning rod, 21. second reference plane, 22. vertical rod, 23. horizontal rod, 3. movable seat, 31. reference line, 32. reference point, 33. assembly hole, 34. reference hole wall, 35. marking line, 36. reflective surface, 4. deck, 5. wall panel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The following will further describe in detail the specific implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0025] A preferred embodiment of a precision control device for the overall assembly of ship sections of the present invention is as Figures 1 to 6 shown. The precision control device for the overall assembly of ship sections includes a base 1, a positioning rod 2, and a movable seat 3.

[0026] The movable seat 3 is slidably assembled on the positioning rod 2 in the vertical direction, that is, the movable seat 3 can slide in the vertical direction, and the positioning rod 2 plays a guiding role in the movement of the movable seat 3. The base 1 and the movable seat 3 are used to clamp the deck 4 of the ship section in the vertical direction. When performing precision control, the base 1 is located on the lower side of the deck 4, and the movable seat 3 is located on the upper side of the deck 4 to clamp and fix with the deck 4. In this embodiment, the base 1 is of a cuboid structure, formed by cutting a basic cuboid profile, and the base 1 is made of a high-strength lightweight alloy material to ensure the anti-deformation ability of the structure.

[0027] The base 1 has a first reference surface 11, and the first reference surface 11 is used to fit the structural wall panel 5 of the section in the horizontal direction. After the first reference surface 11 is fitted with the structural wall panel 5, the horizontal position of the entire precision control device can be positioned, ensuring that the vertical projection of the first reference surface 11 is the vertical projection of the structural wall panel 5. In this embodiment, there are two first reference surfaces 11, and the two first reference surfaces 11 are parallel to each other and face away from each other. The two first reference surfaces 11 can be respectively fitted with both sides of the wall panel 5 to select different measurement points.

[0028] The positioning rod 2 has a second reference surface 21, and the second reference surface 21 is used to fit the end of the deck 4 of the section in the horizontal direction, and the second reference surface 21 is perpendicular to the first reference surface 11. In this embodiment, the positioning rod 2 is made of a lightweight alloy material of the same series as the base 1 to ensure the balanced mass distribution of the entire device and continue the lightweight design concept. The positioning rod 2 and the base 1 are rigidly connected to ensure the connection strength between the two, and the positioning rod 2 is located on the plane at the top of the base 1.

[0029] When the second reference surface 21 of the positioning rod 2 is fitted with the end of the deck 4, the vertical projection of the end of the deck 4 is on the second reference surface 21, and the vertical projection of the intersection point of the wall panel 5 and the deck 4 is on the intersection line or the extension line of the intersection line of the second reference surface 21 and the first reference surface 11, so as to position the position of the precision control device relative to the end of the deck 4.

[0030] The movable seat 3 has a reference line 31 for fitting with the deck 4. The reference line 31 is coplanar with the first reference plane 11. There is also a reference point 32 on the reference line 31, and the reference point 32 is coplanar with the second reference plane 21. Since the reference line 31 is coplanar with the first reference plane 11, the reference line 31 is the projection line of the first reference plane 11 on the deck 4. Also, since the reference point 32 is related to the second reference plane 21, the reference point 32 is the projection point on the deck 4 of the intersection line of the second reference plane 21 and the first reference plane 11, and is also the projection point on the deck 4 of the intersection point of the end of the structural wall panel 5 and the structural wall panel 5. The reference point 32 can be used to replace the measurement point for precision measurement. In this embodiment, there are two reference lines 31 and two reference points 32, and they correspond one by one to the two first reference planes 11.

[0031] The movable seat 3 and the base 1 of the precision control device for ship block erection clamp the deck 4 of the block in the vertical direction. The movable seat 3 can be located on the upper side of the deck 4. Since the reference line 31 on the movable seat 3 fits with the deck 4 and the reference line 31 is coplanar with the first reference plane 11, when the first reference plane 11 of the base 1 fits with the structural wall panel 5, the reference line 31 is the projection line of the structural wall panel 5 on the deck 4. At the same time, since the second reference plane 21 of the positioning rod 2 fits with the end of the deck 4 of the block in the horizontal direction and the reference point 32 is coplanar with the second reference plane 21, the reference point 32 is on the projection line of the end of the deck 4 on the deck 4. The reference point 32 is the projection position on the deck 4 of the intersection point of the structural wall panel 5 and the deck 4. The reference point 32 can be used as a measurement point in cooperation with a total station, avoiding the errors caused by manual measurement, improving the measurement accuracy during block erection, reducing the workload of personnel, improving the measurement efficiency, ensuring the accuracy of the detection results, and being suitable for block structures with different groove designs.

[0032] In some embodiments, the movable seat 3 is provided with an assembly hole 33 penetrating in the vertical direction, and the positioning rod 2 is inserted into the assembly hole 33 in the vertical direction. The movable seat 3 and the positioning rod 2 are in interference fit.

[0033] The movable seat 3 and the positioning rod 2 are in interference fit through the assembly hole 33, which can simplify the assembly structure between the movable seat 3 and the positioning rod 2. Under the action of an external force, the movable seat 3 can be pushed up and down. At the same time, the interference fit can be used to fix the movable seat 3 and the positioning rod 2 to each other when there is no external force, and the movable seat 3 will not move up and down, ensuring the position of the movable seat 3 is determined.

[0034] In this embodiment, the movable seat 3 is a cuboid, the size of the assembly hole 33 is the same as the size of the positioning rod 2, and the unilateral clearance between the assembly hole 33 on the movable seat 3 and the positioning rod 2 is less than 0.1 mm.

[0035] In some embodiments, the assembly hole 33 has a reference hole wall 34 that fits against the second reference plane 21. The movable seat 3 is further provided with a marking line 35. The marking line 35 is coplanar with the reference hole wall 34, and the marking line 35 intersects the reference line 31 at the reference point 32.

[0036] The reference hole wall 34 of the assembly hole 33 fits against the second reference plane 21. Therefore, after the marking line 35 on it is coplanar with the reference hole wall 34, when the positioning rod 2 is assembled with the movable seat 3, the marking line 35 is also coplanar with the second reference plane 21. The intersection point of the marking line 35 and the reference line 31 is the reference point 32. The marking line 35 facilitates the operator to confirm the position of the reference point 32 when using a total station.

[0037] In this embodiment, the movable seat 3 is a cuboid. The marking line 35 is on the side surface of the movable seat 3. The colors of the marking line 35 and the reference line 31 are different from the overall structure of the movable seat 3 for the operator to confirm.

[0038] In some embodiments, the movable seat 3 has a reflective surface 36. The reflective surface 36 is coplanar with the first reference plane 11. The reference line 31 and the indicating line are both located on the reflective surface 36.

[0039] The reflective surface 36 can cooperate with the total station to measure accuracy. In this embodiment, there are two reflective surfaces 36, and the two reflective surfaces 36 are the front and rear surfaces of the movable seat 3 respectively.

[0040] In some embodiments, the base 1 is further provided with a third reference plane 12. The third reference plane 12 is used to fit against the bottom surface of the segmented deck 4 in the vertical direction, and the third reference plane 12 is perpendicular to the first reference plane 11.

[0041] The third reference plane 12 of the base 1 fits against the bottom surface of the deck 4 in the vertical direction, which can position the position of the reference. In this embodiment, the positioning rod 2 is fixedly connected to the third reference plane 12 of the base 1, and the positioning rod 2 is perpendicular to the base, ensuring that the second reference plane 21, the first reference plane 11, and the third reference plane 12 are perpendicular to each other.

[0042] In some embodiments, the base 1 is further provided with an avoidance notch 13. The avoidance notch 13 is located at the intersection of the third reference plane 12 and the first reference plane 11.

[0043] The avoidance notch 13 can also avoid the welding structure between the structural wall plate 5 and the deck 4 of the hull segment, avoid interference between the welds, and ensure that the first reference plane 11, the third reference plane 12 are in close contact with the structural wall plate 5 and the deck 4. In this embodiment, the width and height of the avoidance notch 13 are not less than 10 mm to match the standard size of the hull structure weld of 10 mm.

[0044] In some embodiments, a magnetic block is further included, and the magnetic block is embedded in the base 1.

[0045] A magnetic attraction block is provided on the base 1. The magnetic attraction block enables the base 1 to be magnetically fixed to the hull, meeting the usage requirements of the hull environment and ensuring the stable position of the base 1.

[0046] In some embodiments, the positioning rod 2 includes a vertical rod 22 and a horizontal rod 23 that are perpendicularly connected to each other. The vertical rod 22 is fixedly connected to the base 1. The horizontal rod 23 is provided at one end of the vertical rod 22 away from the base 1. The second reference plane 21 is provided on the vertical rod 22.

[0047] The vertical rod 22 and the horizontal rod 23 make the positioning rod 2 as a whole in an L-shaped structure. The horizontal rod 23 is located at the top of the vertical rod 22, which can limit the moving stroke of the movable seat 3 and prevent the movable seat 3 from detaching from the vertical rod 22.

[0048] The usage process of the precision control device for ship block assembly: When performing precision control measurement on a block, the base 1, the movable seat 3 and the positioning rod 2 are assembled to form a precision control device. Among them, the positioning rod 2 passes through the assembly hole 33 of the movable seat 3, and the lower end of the positioning rod 2 is fixedly connected to the third reference plane 12 of the base 1;

[0049] The assembled precision control device is installed at the connection between the deck 4 and the structural wall panel 5 of the block. The first reference plane 11 of the base 1 is attached to the side surface of the wall panel 5, the third reference plane 12 is attached to the bottom surface of the deck 4, and the second reference plane 21 of the positioning rod 2 is attached to the end of the deck 4. An external force is used to push the movable seat 3 downward, so that the movable seat 3 and the base 1 clamp the deck 4 in the up and down direction;

[0050] Use a total station to measure the reference point 32 on the movable seat 3, and confirm the position of the reference point 32 with reference to the marking line 35 and the reference line 31, then the measurement data of the measurement point supported by the strong wall panel 5 can be obtained. This not only avoids measurement deviation caused by the groove, but also reduces the measurement difficulty, simplifies the measurement process, improves the measurement efficiency, effectively improves the precision control quality and reduces the construction cost.

[0051] In summary, the embodiment of the present invention provides an accuracy control device for the overall assembly of ship sections. Its movable seat and base clamp the deck of the section in the vertical direction. The movable seat can be located on the upper side of the deck. Since the reference line on the movable seat fits the deck and the reference line is coplanar with the first reference plane, when the first reference plane of the base fits the structural wall panel, the reference line is the projection line of the structural wall panel on the deck. At the same time, since the second reference plane of the positioning rod fits the end of the deck of the section in the horizontal direction and the reference point is coplanar with the second reference plane, the reference point is simultaneously on the projection line of the end of the deck on the deck. The reference point is the projection position of the intersection point of the structural wall panel and the deck on the deck. The reference point can be used as a measurement point in cooperation with the total station, avoiding the errors caused by manual measurement, improving the measurement accuracy during the overall assembly of the section, reducing the workload of personnel, improving the measurement efficiency, ensuring the accuracy of the detection results, and being suitable for section structures with different groove designs.

[0052] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the technical principle of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An accuracy control device for ship block erection, characterized in that It includes a base (1), a positioning rod (2) and a movable seat (3). The movable seat (3) is slidably assembled on the positioning rod (2) in the vertical direction. The base (1) and the movable seat (3) are used to clamp the segmented deck (4) in the vertical direction. The base (1) has a first reference plane (11), and the first reference plane (11) is used to fit the structural wall panel (5) of the segment in the horizontal direction. The positioning rod (2) has a second reference plane (21), and the second reference plane (21) is used to fit the end of the deck (4) of the segment in the horizontal direction. The first reference plane (11) and the second reference plane (21) are perpendicular to each other. The movable seat (3) has a reference line (31) for fitting with the deck (4). The reference line (31) and the first reference plane (11) are coplanar. A reference point (32) is also provided on the reference line (31), and the reference point (32) and the second reference plane (21) are coplanar.

2. The precision control device for ship subassembly overall assembly according to claim 1, characterized in that The movable seat (3) is provided with an assembly hole (33) penetrating in the vertical direction. The positioning rod (2) is inserted into the assembly hole (33) in the vertical direction, and the movable seat (3) and the positioning rod (2) are press-fitted.

3. The precision control device for ship subassembly erection according to claim 2, characterized in that, The assembly hole (33) has a reference hole wall (34) that fits with the second reference plane (21). The movable seat (3) is also provided with a marking line (35). The marking line (35) and the reference hole wall (34) are coplanar, and the marking line (35) intersects the reference line (31) at the reference point (32).

4. The precision control device for ship block erection according to claim 3, characterized in that, The movable seat (3) has a reflective surface (36). The reflective surface (36) and the first reference plane (11) are coplanar, and the reference line (31) and the indicating line are both located on the reflective surface (36).

5. The precision control device for ship subassembly erection according to any one of claims 1-4, characterized in that, The base (1) is also provided with a third reference plane (12), and the third reference plane (12) is used to fit the bottom surface of the deck (4) of the segment in the vertical direction. The third reference plane (12) is perpendicular to the first reference plane (11).

6. The precision control device for the overall assembly of ship sections according to claim 5, characterized in that, The base (1) is also provided with an avoidance notch (13), and the avoidance notch (13) is located at the intersection of the third reference plane (12) and the first reference plane (11).

7. The precision control device for ship subassembly overall assembly according to any one of claims 1-4, characterized in that, It also includes a magnetic block, and the magnetic block is embedded in the base (1).

8. The precision control device for ship subassembly integration according to any one of claims 1-4, characterized in that, The positioning rod (2) includes a vertical rod (22) and a horizontal rod (23) that are perpendicularly connected to each other. The vertical rod (22) is fixedly connected to the base (1). The horizontal rod (23) is provided at one end of the vertical rod (22) away from the base (1), and the second reference plane (21) is provided on the vertical rod (22).

Images