A device for batch butting of bulb flat steel

Abstract

The present invention relates to the technical field of shipbuilding, and in particular to a device for connecting bulb flat steels in batches, comprising a bracket, wherein a first protrusion and at least one second protrusion arranged horizontally spaced apart from the first protrusion are fixedly provided at the lower end of the bracket, a groove is provided on one side of the first protrusion, a bulb flat steel welding device is installed on two adjacent pairs of bulb flat steels, the protrusions are placed on a ship, the bracket is arranged on the upper part of each bulb flat steel, so that the ball heads of a pair of bulb flat steels close to the first protrusion are located in the groove, and the first push rod is moved horizontally, so that the tilt misalignment between the two bulb flat steels in the pair of bulb flat steels close to the first protrusion and the tilt between the two bulb flat steels in the pair of bulb flat steels corresponding to the second protrusion can be eliminated, without the need for a welding card code and a hand hammer, and the operation is convenient, fast and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of shipbuilding, in particular to a device for batch docking of bulb flat steels. Background Art

[0002] In order to increase the structural strength of the hull during the ship construction process, it is necessary to weld multiple bulb flat steels at intervals on the ship deck or bulkhead as reinforcement ribs. After the hull sections are closed, the bulb flat steels welded on the first section of the hull need to be welded to the bulb flat steels welded on the second section of the hull; the welding of the bulb flat steels is carried out in pairs, and each pair of bulb flat steels includes a first bulb flat steel welded on the first section and a second bulb flat steel welded on the second section and arranged opposite to the first bulb flat steel. The ends of the first bulb flat steel are welded to the ends of the second bulb flat steel, thereby achieving a firm connection between the hull sections.

[0003] After the hull sections are assembled, due to processing errors, there will be a tilt misalignment between the two bulb flat steels in the same pair. When the tilt misalignment is large, the docking accuracy requirements of the bulb flat steels cannot be met. At this time, workers need to use welding cards and hand hammers to correct the docking ends of the two bulb flat steels in each pair into place, which is inconvenient and inefficient. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: currently, during the butt jointing process of bulb flat steels, there will be tilting and misalignment between the two bulb flat steels in the same pair of bulb flat steels. Workers need to use welding card codes and hand hammers to correct the butt joint ends of the two pairs of bulb flat steels, which is inconvenient and inefficient.

[0005] To solve the above technical problems, the present invention provides a device for butting bulb flat steels in batches, suitable for butting at least two pairs of bulb flat steels welded at intervals on ships, comprising a bracket, a first protrusion and at least one second protrusion horizontally spaced apart from the first protrusion fixedly disposed at the lower end of the bracket, a first groove being disposed on one side of the first protrusion;

[0006] The bracket is arranged on the upper part of each of the bulb flat steels, and the first protrusion and the second protrusion can be placed on the ship so that the ball heads of a pair of the bulb flat steels close to the first protrusion are located in the first groove;

[0007] Each of the second protrusions is provided with a first push rod, and each of the first push rods can move horizontally to press the corresponding pair of bulb flat steels.

[0008] As a preferred solution, the bracket is provided with a second push rod, which can move up and down to press the upper ends of the ball heads of a pair of the bulb flat steels close to the first protrusion.

[0009] As a preferred solution, a slider that can slide horizontally along the bracket is sleeved at a position on the bracket corresponding to each second protrusion, and the lower end of each slider is fixedly connected to a third protrusion extending downward, and each third protrusion is provided with a second groove for inserting the two ball heads of a corresponding pair of bulb flat steels, and each slider is provided with a third push rod, and each third push rod can move up and down to press the upper end of the ball head of the corresponding bulb flat steel.

[0010] As a preferred solution, the outer circumference of each of the third push rods is provided with threads, the middle part of each of the sliders is provided with first threaded holes arranged up and down, each of the third push rods is threadedly connected to the first threaded hole, and the upper end of each of the third push rods is anti-rotatably connected with a first wrench.

[0011] As a preferred solution, the outer periphery of the second push rod is provided with threads, the middle part of the bracket is provided with second threaded holes arranged up and down, the second push rod is threadedly connected in the second threaded holes, and the upper end of the second push rod is connected to a second wrench to prevent rotation.

[0012] As a preferred solution, the outer circumference of each first push rod is provided with a thread, the middle part of each second protrusion is provided with a horizontally arranged third threaded hole, each first push rod is threadedly connected to the third threaded hole, and the end of each first push rod away from the first protrusion is anti-rotatably connected with a third wrench.

[0013] As a preferred solution, the end portion of each first push rod close to one end of the first protrusion is coaxially rotatably connected to an annular push head, and the outer diameter of each annular push head is larger than the outer diameter of the corresponding first push rod.

[0014] As a preferred solution, a connecting block is embedded in each of the ram heads, the hardness of each of the connecting blocks is greater than the hardness of the corresponding ram head, and each of the first push rods is rotatably connected to the corresponding connecting block.

[0015] As a preferred solution, each of the third wrenching members is a torque wrench.

[0016] As a preferred solution, the torque setting value of the third wrench is greater than the bending deformation yield force of a single bulb flat steel and less than the bending deformation yield force of two bulb flat steels.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the device for connecting bulb flat steels in batches of the present invention has a first protrusion and at least one second protrusion arranged horizontally spaced apart from the first protrusion fixedly provided at the lower end of the bracket, a groove is provided on one side of the first protrusion, when in use, the protrusion is placed on the ship, the bracket is arranged on the upper part of each bulb flat steel, so that the ball heads of a pair of bulb flat steels close to the first protrusion are located in the groove, the first push rod is moved horizontally, so that the first push rod presses the corresponding pair of bulb flat steels until the two bulb flat steels of the pair of bulb flat steels pressed by the first push rod are in contact with the end of the first push rod, and at the same time, the first protrusion presses the ball heads close to the first protrusion. The first protrusion is connected to the second protrusion by a threaded rod, and the threaded rod is connected to the second protrusion by a threaded rod. The first protrusion is connected to the second protrusion by a threaded rod. When the threaded rod is connected, the first protrusion is connected to the second protrusion by a threaded rod. When the threaded rod is connected, the first protrusion is connected to the second protrusion by a threaded rod. When the threaded rod is connected, the first protrusion is connected to the second protrusion by a threaded rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-view diagram of the device for batch butting flat bulb steels of the present invention, wherein only one second protrusion is provided and the device is installed on two pairs of adjacent flat bulb steels;

[0019] Figure 2 This is a front view of the device for butting flat bulb steels in batches according to the present invention after being installed on two pairs of flat bulb steels;

[0020] In the figure, 1. U-shaped frame structure; 11. bracket; 12. first protrusion; 121. first groove; 13. second protrusion; 2. first pair of bulb flat steels; 21. first bulb flat steel; 22. second bulb flat steel; 3. second pair of bulb flat steels; 31. third bulb flat steel; 32. fourth bulb flat steel; 41. first push rod; 411. annular top pressure head; 42. third wrench; 51. second push rod; 52. second wrench; 61. third push rod; 62. slider; 63. third protrusion; 631. second groove; 64. first wrench; 7. ship. DETAILED DESCRIPTION

[0021] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. It should be understood that the terms "first", "second", etc. are used in the present invention to describe various information, but such information should not be limited to these terms, which are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information.

[0023] like Figure 1 、 Figure 2 As shown, it is suitable for docking at least two pairs of bulb flat steels welded at intervals on a ship 7, comprising a bracket 11, a first protrusion 12 and at least one second protrusion 13 arranged horizontally spaced apart from the first protrusion 12 being fixedly provided at the lower end of the bracket 11, a first groove 121 being provided on one side of the first protrusion 12; the bracket 11 is arranged on the upper part of each of the bulb flat steels, the first protrusion 12 and the second protrusion 13 can be placed on the ship 7 so that the ball heads of a pair of the bulb flat steels close to the first protrusion 12 are located in the first groove 121; each of the second protrusions 13 is provided with a first push rod 41, and each of the first push rods 41 can be moved horizontally to press the corresponding pair of bulb flat steels.

[0024] Specifically, the use process of the bulb flat steel butt joint of the present invention is described by taking the example of only one second protrusion. Figure 1As shown, the first pair of bulb flat steels 2 and the second pair of bulb flat steels 3 are both welded to the ship 7. The first pair of bulb flat steels 2 include a first bulb flat steel 21 and a second bulb flat steel 22 arranged relatively spaced apart, and the second pair of bulb flat steels 3 include a third bulb flat steel 31 and a fourth bulb flat steel 32. After the ships are closed and docked, the ends of the first bulb flat steel 21 and the second bulb flat steel 22 are ends to be welded, and the ends of the third bulb flat steel 31 and the fourth bulb flat steel 32 are also ends with welding. There is a difference between the angle between the first bulb flat steel 21 and the ship 7 and the angle between the second bulb flat steel 22 and the ship 7, that is, there is an inclination misalignment between the first bulb flat steel 21 and the second bulb flat steel 22, and there is also an inclination misalignment between the third bulb flat steel 31 and the fourth bulb flat steel 34. When the device for batch docking of bulb flat steels of the present invention is used, the first protrusion and the second protrusion are first placed on the ship 7 so that the first pair of bulb flat steels 2 and the second pair of bulb flat steels 3 are both located between the first push rod 41 and the first protrusion, and the middle part of the bracket is located at the location of the docking seam between the first pair of bulb flat steels and the second pair of bulb flat steels, and the ball heads of the first bulb flat steel 21 and the second bulb flat steel 22 are both located in the first groove. Then, the first push rod 41 is moved so that the first push rod 41 moves toward the first protrusion 12. As the distance between the first push rod 41 and the first protrusion 12 gradually decreases, the end of the first push rod 41 first presses the bulb flat steels of the third bulb flat steel 31 and the fourth bulb flat steel 32 that are inclined toward the second protrusion 13. , correct the inclined bulb flat steel at the second protrusion 13 toward the direction of the first protrusion 12. At this time, the force applied by the first push rod 41 to the third bulb flat steel 31 or the fourth bulb flat steel 34 is only the yield force of one bulb flat steel. Therefore, the driving force applied to the first push rod 41 is relatively small, until the end of the first push rod 41 contacts the third bulb flat steel 31 and the fourth bulb flat steel 32 at the same time. At this time, the third bulb flat steel 31 and the fourth bulb flat steel 32 contact the end of the first push rod 41 at the same time. Therefore, the third bulb flat steel 31 and the fourth bulb flat steel 32 jointly apply a reaction force to the first push rod 41. At this time, if the inclination of the third bulb flat steel 31 and the fourth bulb flat steel is continued to be corrected, it is necessary to apply a force to the first push rod that can overcome the The first push rod 41 corrects the second pair of bulb flat steels while the first protrusion 12 presses the first and second bulb flat steels 21, 22. When only one of the first and second bulb flat steels 21, 22 contacts the first protrusion, the reaction force exerted by the first and second bulb flat steels 21, 22 on the first protrusion equals the yield force of one bulb flat steel. This is achieved by correcting the inclination angle of the first pair of bulb flat steels 2 by applying the reaction force equal to the sum of the yield forces of the first and second bulb flat steels 21, 22 until both the first and second bulb flat steels 21, 22 contact the first protrusion.The final state after correction is completed is that the ends of the first bulb flat steel 21 and the second bulb flat steel 22 are aligned, and the ends of the third bulb flat steel 31 and the fourth bulb flat steel 32 are aligned. The first groove 121 can prevent the bulb flat steel batch docking device from falling off the first pair of bulb flat steels and the second pair of bulb flat steels during the pressing process; when the second protrusions 13 are set to more than two, the spacing distance between each second protrusion 13 and the first protrusion 12 gradually increases. When in use, first move any one of the first push rods to complete the correction of the corresponding two pairs of bulb flat steels. The bulb flat steel correction device is connected to the two pairs of bulb flat steels that have been corrected, and then the remaining first push rods are moved one by one to achieve separate correction of the remaining pairs of bulb flat steels. Therefore, the bulb flat steel batch docking device of the present invention can correct the tilt and misalignment of at least two pairs of bulb flat steels at the same time, without the need for welding card codes and hand hammers, and is convenient, fast, and efficient to operate. ;

[0025] In this embodiment, a second push rod 51 is provided on the bracket 11 , and the second push rod 51 can move up and down to press the upper ends of the ball heads of the pair of bulb flat steels close to the first protrusion 12 .

[0026] Specifically, the second push rod 51 extends vertically and is located above the joint of the first pair of bulbous flat steels 2. The bracket 11 is also provided with a second transmission mechanism for driving the second push rod 51 to move vertically to press against the upper ends of the two ball heads of the first pair of bulbous flat steels 2. After the hull sections are closed, the same pair of bulbous flat steels may sometimes be misaligned vertically. Therefore, when welding the bulbous flat steels to the hull sections, to facilitate alignment and correction of the bulbous flat steels during hull closing, a distance is often left between the lower end of the bulbous flat steels and the end face of the base plate 7, and welding is resumed after the hull sections are closed and the bulbous flat steels are corrected. After the tilt misalignment between the first and second pairs of bulb flat steels 2, 3 is corrected, both ball heads of the first pair of bulb flat steels are retained in the first groove 121. At this point, the second push rod 51 is pushed downward by the second transmission mechanism. As the distance between the second push rod 51 and the bottom wall of the first groove 121 decreases, the lower end of the second push rod 51 presses downward against the upper end surface of the taller of the first and second bulb flat steels 21, 22. The bottom wall of the first groove 121 presses upward against the lower end surface of the ball head of the shorter of the first and second bulb flat steels 21, 22, thereby eliminating the vertical misalignment between the first and second bulb flat steels 21, 22. Therefore, the second push rod 51 can adjust the vertical misalignment of the first pair of bulb flat steels after the height misalignment between the first and second pairs of bulb flat steels is corrected, further improving the correction efficiency of the device for batch butting bulb flat steels of the present invention.

[0027] Furthermore, a slider 62 that can slide horizontally along the bracket 11 is sleeved at a position on the bracket 11 corresponding to each second protrusion 12, and the lower end of each slider 62 is fixedly connected to a third protrusion 63 extending downward, and each third protrusion 63 is provided with a second groove 631 for inserting the two ball heads of a corresponding pair of bulb flat steels, and each slider 62 is provided with a third push rod 61, and each third push rod 61 can be moved up and down to press the upper end of the ball head of the corresponding bulb flat steel.

[0028] Specifically, the slider 62 is arranged on the bracket 11 between the first protrusion 12 and the second protrusion 13, and between two adjacent second protrusions 13, and is located above the joint of the corresponding pair of bulb flat steels. The bracket 11 is provided with a clearance groove for the third push rod 61 to pass through. The third push rod 61 can adjust the vertical misalignment of the third and fourth bulb flat steels. When multiple second protrusions 12 are provided, each third push rod 61 can correct the vertical misalignment of the corresponding pair of bulb flat steels. The provision of the slider 62 allows the distance between the third push rod 61 and the first protrusion to be flexibly adjusted according to the distance between the first and second pairs of bulb flat steels, thereby increasing the applicability of the bulb flat steel batch jointing device of the present invention. When correcting the upper and lower misalignment of the bulb flat steels corresponding to the second protrusions, the two ball heads of each pair of corresponding bulb flat steels are inserted into the corresponding second grooves 631, so that when the third push rod 61 is pressed down, the bottom wall of the second groove 631 abuts against the bottom surface of the ball heads of the corresponding second pair of bulb flat steels. The setting of the second groove 631 prevents the bulb flat steel batch docking device from falling off the bulb flat steel when the third push rod 61 is pressed down.

[0029] There are multiple ways to achieve the up and down movement of the third push rod 61. In this embodiment, the outer periphery of the third push rod 61 is provided with a thread, and the middle part of the slider 62 is provided with first threaded holes arranged up and down. The third push rod 61 is threadedly connected to the first threaded hole, and the upper end of the third push rod 61 is fixedly connected to the first wrench 64, and the up and down movement of the third push rod 61 can be achieved by rotating the first wrench 64. In other embodiments of the present invention, the third push rod 61 is inserted into the middle part of the bracket 11 for sliding up and down, and a telescopic drive device is provided between the upper end of the third push rod 61 and the bracket 11, one end of the telescopic drive device is fixedly connected to the bracket 11, and the other end of the telescopic drive device is fixedly connected to the upper end of the third push rod 61. The up and down movement of the third push rod 61 can be achieved by changing the length of the telescopic drive device.

[0030] In this embodiment, the outer circumference of the second push rod 51 is provided with threads, and the middle portion of the bracket 11 is provided with second threaded holes arranged vertically. The second push rod 51 is threadedly connected to the second threaded holes, and the upper end of the second push rod 51 is fixedly connected to the second wrench 52. The outer circumference of each first push rod 41 is also provided with threads, and the middle portion of each second protrusion 13 is provided with a third threaded hole arranged parallel to the length direction of the bracket 11. Each first push rod 41 is threadedly connected to the third threaded hole, and the end of each first push rod 41 away from the corresponding first protrusion is fixedly connected to the third wrench 42.

[0031] Among them, one end of each first push rod 41 near the first protrusion is coaxially connected to an annular pressing head 43, and the outer diameter of each annular pressing head 43 is larger than the outer diameter of the corresponding first push rod 41. Since the outer diameter of the annular pressing head 43 is larger than the outer diameter of the first push rod 41, the contact area between the annular pressing head and the second pair of bulb flat steels is larger than the contact area between the first push rod 41 and the annular pressing head 43. Therefore, when the third wrench is rotated to move the first push rod 41, the first push rod 41 and the annular pressing head 43 rotate, while the annular pressing head 43 and the second pair of bulb flat steels remain stationary. This arrangement can prevent the first push rod 41 from directly rotating with the side surface of the second pair of bulb flat steels, which would cause wear on the contact surface between the second pair of bulb flat steels and the first push rod 41. To further prevent rotation between the annular ram 43 and the second pair of flat bulbs, and to prevent the ram from crushing the flat bulbs, the annular ram 43 can be made of a softer material, and a harder connecting block is embedded within the annular ram 43 to prevent rotation. The end of the first push rod 41 is rotatably connected to the connecting block. The lower ends of the second push rod 51 and each of the third push rods 61 are also rotatably connected to an annular ram.

[0032] After the inclination misalignment between the first bulb flat steel 21 and the second bulb flat steel 22 is eliminated, and after the inclination misalignment between the third bulb flat steel 31 and the fourth bulb flat steel 32 is eliminated, the torque required to tighten the wrench will increase sharply. In this embodiment, each of the third wrenches 42 is a torque wrench. By setting the torque of the torque wrench, the torque value of the torque wrench is set to be greater than the complete deformation yield force of a single bulb flat steel and less than the deformation yield force of two bulb flat steels. After the inclination misalignment of the first pair of bulb flat steels and the second pair of bulb flat steels is eliminated, the first push rod no longer rotates, thereby realizing quick control of the correction degree, and further improving the ease of use of the bulb flat steel batch docking device of the present invention.

[0033] In this embodiment, when only one second protrusion is provided, the bracket 11, the first protrusion 12 and the second protrusion 13 together constitute a U-shaped frame structure 1. The U-shaped frame structure can be formed by milling a whole piece of metal plate or by welding the plates together. In this embodiment, the U-shaped frame structure 1 is formed by welding the plates together, which is convenient for processing and manufacturing.

[0034] The working process of the bulb flat steel batch docking device of the present invention is as follows:

[0035] First, use a torque wrench to increase the distance between each first push rod 41 and the first protrusion 12, then place the bulb flat steel batch docking device on the ship, and align the middle of the bracket with the docking seam of each pair of bulb flat steels, and then reduce the distance between each first push rod 41 and the first protrusion 12 in turn to correct the inclination angles of multiple pairs of bulb flat steels one by one; then, by adjusting the second push rod, correct the upper and lower misalignment of the bulb flat steel close to the first protrusion; by adjusting the third push rod, correct the upper and lower misalignment of the corresponding bulb flat steel, and then remove the bulb flat steel batch docking device from the two pairs of bulb flat steels.

[0036] In summary, the ball flat steel batch docking device provided by the present invention can quickly and conveniently correct the tilting and up and down misalignment of two pairs of adjacent ball flat steels. It is easy to use and efficient, and does not require the aid of welding cards and hand hammers, which greatly reduces the labor intensity of workers and improves work efficiency.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A device for butting bulb flat steel in batches, suitable for butting at least two pairs of bulb flat steels welded at intervals on a ship (7), characterized in that: The invention comprises a bracket (11), wherein a first protrusion (12) and at least one second protrusion (13) arranged horizontally spaced apart from the first protrusion (12) are fixedly provided at the lower end of the bracket (11), and a first groove (121) is provided on one side of the first protrusion (12); The bracket (11) is arranged on the upper part of each of the bulb flat steels, and the first protrusion (12) and the second protrusion (13) can be placed on the ship (7) so that the ball heads of a pair of the bulb flat steels close to the first protrusion (12) are located in the first groove (121); Each of the second protrusions (13) is provided with a first push rod (41), and each of the first push rods (41) can move horizontally to press the corresponding other pair of the bulb flat steels; The outer periphery of each first push rod (41) is provided with a thread, the middle part of each second protrusion (13) is provided with a horizontally arranged third threaded hole, each first push rod (41) is threadedly connected to the third threaded hole, and one end of each first push rod (41) away from the first protrusion (12) is fixedly connected to a third wrench (42); each third wrench (42) is a torque wrench; the torque setting value of the third wrench (42) is greater than the bending deformation yield force of a single flat steel ball and less than the bending deformation yield force of two flat steel balls; A slider (62) that can slide horizontally along the bracket (11) is sleeved at a position on the bracket (11) corresponding to each second protrusion (13), and the lower end of each slider (62) is fixedly connected to a third protrusion (63) extending downward, and each third protrusion (63) is provided with a second groove (631) for inserting two ball heads of the corresponding other pair of bulb flat steels, and each slider (62) is provided with a third push rod (61), and each third push rod (61) can move up and down to press the upper end of the ball head of the corresponding bulb flat steel.

2. The device for batch butting flat bulb steel according to claim 1, characterized in that: The bracket (11) is provided with a second push rod (51), which can move up and down to press the upper ends of the ball heads of a pair of the flat bulb steels close to the first protrusion (12).

3. The device for batch butting flat bulb steel according to claim 1, characterized in that: The outer periphery of each of the third push rods (61) is provided with a thread, the middle portion of each of the sliders (62) is provided with a first threaded hole arranged up and down, each of the third push rods (61) is threadedly connected to the first threaded hole, and the upper end of each of the third push rods (61) is non-rotatably connected to a first wrench (64).

4. The device for batch butting flat bulb steel according to claim 2, characterized in that: The outer periphery of the second push rod (51) is provided with a thread, and the middle part of the bracket (11) is provided with second threaded holes arranged up and down, the second push rod (51) is threadedly connected in the second threaded hole, and the upper end of the second push rod (51) is connected to the second wrench (52) in a rotation-proof manner.

5. The device for batch butting flat bulb steel according to claim 1, characterized in that: The end portion of each first push rod (41) close to one end of the first protrusion (12) is coaxially rotatably connected to an annular push head (411), and the outer diameter of each annular push head (411) is larger than the outer diameter of the corresponding first push rod (41).

6. The device for batch butting flat bulb steel according to claim 5, characterized in that: A connecting block is embedded in each of the annular pressing heads (411), the hardness of each connecting block is greater than the hardness of the corresponding annular pressing head (411), and each of the first push rods (41) is rotatably connected to the corresponding connecting block.

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