A vertical plate welding positioning tool for ship repairing and building

Abstract

The application discloses a vertical plate welding positioning tool for ship repairing and manufacturing, and relates to the technical field of ship repairing and manufacturing. The application comprises a base, the top of the base is fixed with a support frame, the side of the support frame is fixed with a motor one, the output shaft of the motor one is fixed with a bidirectional screw rod one, the circumferential surfaces of the bidirectional screw rod one in opposite screw directions are respectively threadedly connected with two screw sleeves one, the two sides of the top of the two screw sleeves one are respectively fixed with a support, and the inner walls of the four supports are respectively fixed with an electric push rod one. The arrangement of the anti-dislocation device can make the movement of the round roller smooth the welding position of the two vertical plates, so that the problem that the welding position of the two thin vertical plates is slightly bent and dislocated and finally leads to welding failure is avoided.

Description

Technical Field

[0001] This invention relates to the field of shipbuilding and repair technology, specifically to a welding and positioning fixture for vertical plates used in shipbuilding and repair. Background Technology

[0002] The welding and positioning fixture for shipbuilding and repair plates is designed for the vertical assembly process of plates. It has strong main rigidity, can be fixed with one click, requires no temporary manual support, reduces labor consumption, is compatible with various sizes of plates, and is easy to assemble and disassemble.

[0003] Chinese patent CN219053384U discloses a welding and positioning fixture for vertical plates used in ship repair and construction. The fixture includes a base, on which a first support column and a second support column are fixedly connected. A first rotating shaft and a second rotating shaft are movably mounted on the first and second support columns, respectively. A sliding groove is provided on the base, and a clamping component for holding the vertical plate is movably fitted within the groove. A motor is fixedly installed on the base, and a worm gear is fixedly connected to the motor's output end. A worm wheel adapted to the worm gear is fixedly fitted on the first rotating shaft, and a transmission belt connects the first and second rotating shafts. This patent utilizes the interaction between the motor, worm gear, and worm wheel to drive the transmission belt to rotate. The rotating transmission belt, through a first connecting rod and a second connecting rod, pulls the clamping component to move within the sliding groove, effectively fixing the width of the vertical plate between the two clamping components. Simultaneously, the lateral section of the clamping component fixes the height of the vertical plate, significantly improving work efficiency.

[0004] However, the current positioning fixture has the following problems: when welding two relatively thin vertical plates together, because the two thin vertical plates are erected at a high height and the welding point is difficult to fix, the welding point of the two relatively thin vertical plates will be slightly bent and misaligned, which will lead to the final welding failure. Therefore, we propose a positioning fixture for welding vertical plates for ship repair and construction. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a welding and positioning fixture for vertical plates used in ship repair and construction, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding and positioning fixture for shipbuilding and repair, comprising a base, a support frame fixed to the top of the base, a motor fixed to the side of the support frame, a bidirectional threaded rod fixed to the output shaft of the motor, two threaded sleeves threaded on opposite circumferential surfaces of the bidirectional threaded rod, brackets fixed to the top of both sides of the two threaded sleeves, electric push rods fixed to the inner walls of the four brackets, and L-shaped positioning plates fixed to the telescopic ends of the four electric push rods. The top of the base is provided with... An anti-misalignment device includes two U-shaped frames, which are respectively fixed to the top two sides of the base. A driving component is provided on the top of each of the two U-shaped frames. Two short rods are slidably installed on the moving end side of each of the two driving components. A slider is fixed to the end of each of the four short rods away from the moving end of the driving component. A U-shaped fixing frame is fixed between every two sliders. Vertical plates are fixed on both sides of each of the two U-shaped fixing frames. Two round rollers are rotatably installed on the side of every two vertical plates. A fixing groove for fixing an external welding gun is opened in the middle of each of the two U-shaped fixing frames.

[0007] According to the above technical solution, all four sliders are slidably mounted on the top of the support frame, and the sides of the four L-shaped positioning plates are provided with long grooves to allow the four sliders to move.

[0008] According to the above technical solution, the two drive components include two motors two fixed to the top of the inner wall of the U-shaped frame, the output shafts of the two motors two are fixed with threaded rods, and the outer walls of the two threaded rods are threaded with T-shaped threaded sleeves, and the two T-shaped threaded sleeves are respectively provided at the moving ends of the two drive components.

[0009] According to the above technical solution, two long rods are slidably installed through both sides of the two U-shaped fixing frames, and one end of each of the four long rods is fixed with an inclined positioning plate. A spring is provided between the inclined positioning plate and the U-shaped fixing frame.

[0010] According to the above technical solution, a distance positioning device is provided on the side of the vertical plate. The distance positioning device includes a U-shaped block one. The lower part of the inner wall of the U-shaped block one is fixed to the side of two of the vertical plates. An insert block is fixed to the inner wall of the U-shaped block one. The other two vertical plates are fixed with the same U-shaped block two. A slotted block is fixed to the inner wall of the U-shaped block two. The slot of the slotted block is located on the movement trajectory of the insert block.

[0011] According to the above technical solution, a triangular block is slidably installed on the top of the slotted block.

[0012] According to the above technical solution, an auxiliary device is provided on the top of both the U-shaped block one and the U-shaped block two. The auxiliary device includes four electric push rods two, which are respectively fixed on the top of the U-shaped block one and the U-shaped block two. An L-shaped block is fixed to the telescopic end of each of the four electric push rods two. A push plate is fixed to the side of each of the four L-shaped blocks. A movable block is fixed to the bottom of each of the four push plates. The four movable blocks are slidably installed on the top of the U-shaped block one and the U-shaped block two.

[0013] According to the above technical solution, the two push plates located at the second U-shaped block are fixed with the same E-shaped block on their sides, and the middle part of the E-shaped block is fixed to the outer wall of the triangular block.

[0014] This invention provides a welding and positioning fixture for vertical plates used in ship repair and construction. It has the following beneficial effects: (1) By setting up an anti-misalignment device, the present invention, with the cooperation of the second machine, threaded rod, T-shaped threaded sleeve, slider, short rod, U-shaped fixing frame, vertical plate and round roller, the movement of the round roller can straighten the joint where the two vertical plates are welded together, thereby avoiding the problem that the two thin vertical plates are too tall and the joint where they are welded together is difficult to fix. Therefore, the joint where the two relatively thin vertical plates are welded together will be slightly bent and misaligned, which will lead to the final welding failure. At the same time, with the cooperation of the inclined positioning plate, spring, vertical plate and round roller, the upward movement of the long rod will drive the inclined positioning plate to move upward along the outer wall of the two vertical plates, thereby avoiding the change of the gap between the straightened two vertical plates, which will lead to the problem that the two vertical plates are difficult to accurately position. At the same time, with the cooperation of the first electric push rod, L-shaped positioning plate, threaded sleeve, and round roller, the movement of the two threaded sleeves will drive the L-shaped positioning plate that fixes the vertical plate to move, and make the vertical plates move closer to each other along the outer wall of the two round rollers, thereby ensuring that the two vertical plates are aligned at the beginning of the welding.

[0015] (2) By setting up a distance positioning device, the U-shaped block 1, the insert block, the U-shaped block 2, and the slot block cooperate to limit the weld between the two upright plates when the slot block moves upward. This avoids the problem that the weld between the two upright plates is too small or too large when the roller straightens the two upright plates, thus ensuring the integrity of the two upright plates during the welding process. At the same time, with the cooperation of the triangular block and the slot block, the triangular block will separate the gap between the two upright plates to both sides, thereby avoiding the problem that the slot block moves upward when the gap is too small, causing the slot block to wear and be damaged, thus making it difficult for the slot block to accurately determine the size of the weld between the two upright plates.

[0016] (3) With the help of the auxiliary device, the push plate moves back and forth, and the vertical plate shakes before being straightened by the roller. The shaking can make the two vertical plates “adaptively fine-tune” through small reciprocating motion, correcting the initial small offset and avoiding the problem of incomplete correction due to stress when the roller is straightened later. At the same time, with the help of the moving block, E-shaped block, triangular block and slotted block, the back and forth movement of the E-shaped block will drive the triangular block to move back and forth along the top of the slotted block, so that the triangular block can more easily separate the weld seam of the two vertical plates. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the entire invention; Figure 2 This is a schematic diagram of one structural element of the bidirectional threaded rod of the present invention; Figure 3 This is a schematic diagram of the slider structure of the present invention; Figure 4 This is a schematic diagram of the structure of the U-shaped fixing frame of the present invention; Figure 5 This is a schematic diagram of the structure of the inclined positioning plate of the present invention; Figure 6 This is a schematic diagram of one part of the U-shaped block structure of the present invention; Figure 7 This is a schematic diagram of the structure at the E-shaped block of the present invention.

[0018] In the diagram: 1. Base; 2. Support frame; 3. Motor 1; 4. Bidirectional threaded rod 1; 5. Threaded sleeve 1; 6. Anti-misalignment device; 61. U-shaped frame; 62. Motor 2; 63. Threaded rod; 64. T-shaped threaded sleeve; 65. Slider; 66. Short rod; 67. U-shaped fixing frame; 68. Vertical plate; 69. Circular roller; 610. Long rod; 611. Inclined positioning plate; 612. Spring; 7. Distance positioning device; 71. U-shaped block 1; 72. Insert block; 73. U-shaped block 2; 74. Groove block; 75. Triangular block; 8. Auxiliary device; 81. Electric push rod 2; 82. L-shaped block; 83. Push plate; 84. Moving block; 85. E-shaped block; 9. Bracket; 10. Electric push rod 1; 11. L-shaped positioning plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Please see Figures 1-7One embodiment of the present invention is: a welding and positioning fixture for ship repair plates, comprising a base 1, a support frame 2 fixed to the top of the base 1, a motor 3 fixed to the side of the support frame 2, a bidirectional threaded rod 4 fixed to the output shaft of the motor 3, two threaded sleeves 5 threadedly connected to the circumferential surfaces of the bidirectional threaded rod 4 with opposite thread directions, brackets 9 fixed to the top of both sides of the two threaded sleeves 5, electric push rods 10 fixed to the inner walls of the four brackets 9, and L-shaped positioning plates 11 fixed to the telescopic ends of the four electric push rods 10. A misalignment prevention device 6 is provided at the top. The misalignment prevention device 6 includes two U-shaped frames 61, which are fixed to the top sides of the base 1 respectively. A drive assembly is provided at the top of each U-shaped frame 61. Two short rods 66 are slidably mounted on the moving end side of each drive assembly. A slider 65 is fixed to the end of each short rod 66 away from the moving end of the drive assembly. A U-shaped fixing frame 67 is fixed between every two sliders 65. Vertical plates 68 are fixed to both sides of each U-shaped fixing frame 67. Two circular rollers 69 are rotatably mounted on the side of every two vertical plates 68. Each U-shaped fixing bracket 67 has a fixing groove in the middle for fixing an external welding gun. Four sliders 65 are slidably mounted on the top of the support frame 2. The sides of each of the four L-shaped positioning plates 11 have long grooves for moving the four sliders 65. The two drive components include two motors 62 respectively fixed to the top of the inner wall of the U-shaped frame 61. The output shafts of both motors 62 are fixed with threaded rods 63. The outer walls of both threaded rods 63 are threaded with T-shaped threaded sleeves 64. The two T-shaped threaded sleeves 64 are respectively provided at the moving ends of the two drive components. Through the above structure... The movement of the two threaded sleeves 5 will cause the L-shaped positioning plate 11 of the fixed upright plate to move, and make the upright plate move closer to each other along the outer wall of the two rollers 69. This ensures that the two upright plates are aligned at the beginning of the welding. The movement of the rollers 69 can straighten the welded joint of the two upright plates, thus avoiding the problem that the two thin upright plates are too tall and the welded joint is difficult to fix. Therefore, the welded joint of the two relatively thin upright plates will be slightly bent and misaligned, which will lead to the final welding failure.

[0021] Two long rods 610 are slidably mounted through both sides of the two U-shaped fixing frames 67. One end of each of the four long rods 610 is fixed with an inclined positioning plate 611. A spring 612 is provided between the inclined positioning plate 611 and the U-shaped fixing frame 67. With the above structure, the upward movement of the long rods 610 will drive the inclined positioning plate 611 to move upward along the outer wall of the two upright plates, thereby avoiding the problem that the gap between the two upright plates after straightening changes, which would make it difficult to accurately position the two upright plates.

[0022] A distance positioning device 7 is provided on the side of the vertical plate 68. The distance positioning device 7 includes a U-shaped block 71. The lower part of the inner wall of the U-shaped block 71 is fixed to the side of two of the vertical plates 68. An insert block 72 is fixed to the inner wall of the U-shaped block 71. The other two vertical plates 68 are fixed to the same U-shaped block 73. A slotted block 74 is fixed to the inner wall of the U-shaped block 73. The slot of the slotted block 74 is located on the movement trajectory of the insert block 72. With the above structure, the upward movement of the slotted block 74 will limit the weld between the two vertical plates, avoiding the problem of the weld between the two vertical plates being too small or too large when the roller 69 straightens the two vertical plates, thus ensuring the integrity of the two vertical plates during the welding process.

[0023] A triangular block 75 is slidably installed on the top of the slotted block 74. With the above structure, the triangular block 75 will separate the gap between the two upright plates to both sides, thereby avoiding the problem of the slotted block 74 moving upward when the gap is too small, which would cause the slotted block 74 to wear and be damaged, and ultimately make it difficult for the slotted block 74 to accurately determine the weld size between the two upright plates.

[0024] In use, two thin vertical plates that need to be welded together are placed between two L-shaped positioning plates 11 by an external robotic arm. Then, an external welding gun is fixed to the fixing groove in the middle of the U-shaped fixing frame 67. Next, four electric push rods 10 are activated to move their respective L-shaped positioning plates 11, thus fixing the two vertical plates. The movement of the L-shaped positioning plates 11 causes the slider 65 to move along the top of the support frame 2. The movement of the slider 65 causes the short rod 66 to move along the side of the T-shaped threaded sleeve 64. Simultaneously, the movement of the slider 65 causes the U-shaped fixing frame 67 to move, which in turn moves the vertical plates... The vertical plate 68 moves, causing the roller 69 to move as well, bringing it into contact with the two vertical plates. Then, motor 3 is started, and its output shaft rotates the bidirectional threaded rod 4. This rotation moves the two threaded sleeves 5, which in turn move the L-shaped positioning plate 11 that holds the vertical plates together, bringing the plates closer together along the outer walls of the two rollers 69. This ensures the two plates are aligned at the start of the welding process. Then, the external welding gun is started to weld the two plates, and two motors 62 are started, each moving its corresponding threaded rod... Rotation of threaded rod 63 causes T-shaped threaded sleeve 64 to move upward. This upward movement of T-shaped threaded sleeve 64 drives short rod 66 upward, which in turn drives slider 65 upward. Slider 65 then drives U-shaped fixing bracket 67 upward, which in turn drives vertical plate 68 upward. Vertical plate 68 then drives roller 69 upward. The movement of roller 69 straightens the welded joints of the two vertical plates, preventing the two thin vertical plates from standing too tall and making the welded joint difficult to secure. Slight bending and misalignment may occur at the welding points, leading to welding failure. The movement of the U-shaped fixing bracket 67 will simultaneously move the long rod 610, which in turn will move the inclined positioning plate 611 and the spring 612. Under the elastic force of the spring 612, the inclined positioning plate 611 firmly presses against the upright plate. At the same time, the upward movement of the U-shaped fixing bracket 67 will move the long rod 610 upward, which in turn will move the inclined positioning plate 611 upward along the outer wall of the two upright plates. This prevents the gap between the straightened upright plates from changing, which could lead to inaccurate positioning of the two upright plates.

[0025] It should be noted that: descriptions only indicate left or right movement, while upward movement is described with specific directional terms.

[0026] The movement of the two vertical plates 68 will cause the U-shaped blocks 71 and 73 to move as well. The movement of U-shaped blocks 71 and 73 will cause the insert block 72 to insert into the slot block 74. Therefore, when the two vertical plates approach each other, they will contact the outer wall of the slot block 74. Furthermore, the upward movement of the two vertical plates 68 will cause the U-shaped blocks 71 and 73 to move upward. This upward movement of the U-shaped blocks 71 and 73 will cause the insert block 72 and the slot block 74, which are inserted together, to move upward. The upward movement of the slot block 74 will weld the two vertical plates together. The gap is defined to prevent the weld between the two upright plates from being too small or too large when the roller 69 is straightening them, thus ensuring the integrity of the two upright plates during the welding process. The upward movement of the groove block 74 will also drive the triangular block 75 to move upward. When the gap between the two upright plates is too small, the triangular block 75 will separate the gap between the two upright plates to both sides, thereby preventing the groove block 74 from moving upward when the gap is too small, which would cause the groove block 74 to wear and be damaged, and ultimately make it difficult for the groove block 74 to accurately determine the size of the weld between the two upright plates.

[0027] Please see Figures 1-7 Based on the above embodiments, in another embodiment of the present invention, an auxiliary device 8 is provided on the top of both U-shaped block 71 and U-shaped block 73. The auxiliary device 8 includes four electric push rods 81, which are respectively fixed on the top of U-shaped block 71 and U-shaped block 73. An L-shaped block 82 is fixed to the telescopic end of each of the four electric push rods 81. A push plate 83 is fixed to the side of each of the four L-shaped blocks 82. A moving block 84 is fixed to the bottom of each of the four push plates 83. The four moving blocks 84 are respectively slidably installed on the top of U-shaped block 71 and U-shaped block 73. With the above structure, the back-and-forth movement of the plate 83 will cause the upright plate to shake before being straightened by the roller 69. The shaking can allow the two upright plates to make "adaptive fine adjustment" through small reciprocating motion, correcting the initial small offset and avoiding the problem of incomplete correction due to stress when the roller 69 straightens later.

[0028] The two push plates 83 located at U-shaped block 2 73 have the same E-shaped block 85 fixed on their sides. The middle part of the E-shaped block 85 is fixed to the outer wall of the triangular block 75. With the above structure, the back and forth movement of the E-shaped block 85 will drive the triangular block 75 to move back and forth along the top of the slot block 74, so that the triangular block 75 can more easily separate the weld seam of the two vertical plates.

[0029] In use, the movement of U-shaped block 1 71 and U-shaped block 2 73 will respectively drive their respective electric push rods 2 81 and moving blocks 84 to move. The movement of electric push rods 2 81 and moving blocks 84 will drive L-shaped block 82 and push plate 83 to move, so that push plate 83 moves closer to the two upright plates. When U-shaped block 2 73 moves upward, the four electric push rods 2 81 are activated. The extension and retraction ends of the four electric push rods 2 81 will cause their respective L-shaped blocks 82 to move back and forth. The back and forth movement of L-shaped blocks 82 will drive push plate 83 along U-shaped block 1 71 via moving blocks 84. The back-and-forth movement of the top of the U-shaped block 73 and the back-and-forth movement of the push plate 83 will cause the upright plate to sway before being straightened by the round roller 69. The swaying can allow the two upright plates to make "adaptive fine adjustments" through small reciprocating motion, correcting the initial slight offset and avoiding the problem of incomplete correction due to stress when the round roller 69 straightens later. The back-and-forth movement of the push plate 83 will drive the E-shaped block 85 to move back and forth. The back-and-forth movement of the E-shaped block 85 will drive the triangular block 75 to move back and forth along the top of the slot block 74, so that the triangular block 75 can more easily separate the weld seam of the two upright plates.

[0030] It should be noted that when the telescopic end of one side of the electric push rod 81 is extended, the telescopic end of the other side of the electric push rod 81 will extend or retract, ensuring the synchronous movement of the moving blocks 84 on both sides.

[0031] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A welding and positioning fixture for vertical plates used in ship repair and construction, comprising a base (1), characterized in that: A support frame (2) is fixed to the top of the base (1), a motor (3) is fixed to the side of the support frame (2), a bidirectional threaded rod (4) is fixed to the output shaft of the motor (3), two threaded sleeves (5) are threaded to the circumferential surfaces of the bidirectional threaded rod (4) with opposite thread directions, brackets (9) are fixed to the top of both sides of the two threaded sleeves (5), electric push rods (10) are fixed to the inner walls of the four brackets (9), and L-shaped positioning plates (11) are fixed to the telescopic ends of the four electric push rods (10). An anti-misalignment device (6) is provided on the top of the base (1), and the anti-misalignment device (6) includes two U-shaped frames (61). The two U-shaped frames (61) are fixed on the top two sides of the base (1), and the top of the two U-shaped frames (61) is provided with a driving component. Two short rods (66) are slidably installed on the moving end side of the two driving components. A slider (65) is fixed at the end of the four short rods (66) away from the moving end of the driving component. A U-shaped fixing frame (67) is fixed between each pair of sliders (65). A vertical plate (68) is fixed on both sides of the two U-shaped fixing frames (67). Two round rollers (69) are rotatably installed on the side of each pair of vertical plates (68). A fixing groove for fixing an external welding gun is opened in the middle of the two U-shaped fixing frames (67).

2. The welding and positioning fixture for shipbuilding and repair plates according to claim 1, characterized in that: All four sliders (65) are slidably mounted on the top of the support frame (2), and the sides of the four L-shaped positioning plates (11) are provided with long grooves to allow the four sliders (65) to move.

3. The welding and positioning fixture for ship repair and construction plates according to claim 2, characterized in that: The two drive components include two motors (62) fixed to the top of the inner wall of the U-shaped frame (61). The output shafts of the two motors (62) are fixed with threaded rods (63). The outer walls of the two threaded rods (63) are threaded with T-shaped threaded sleeves (64). The two T-shaped threaded sleeves (64) are respectively provided at the moving ends of the two drive components.

4. The welding and positioning fixture for shipbuilding and repair plates according to claim 3, characterized in that: Two long rods (610) are slidably installed through both sides of the two U-shaped fixing frames (67), and one end of each of the four long rods (610) is fixed with an inclined positioning plate (611). A spring (612) is provided between the inclined positioning plate (611) and the U-shaped fixing frame (67).

5. The welding and positioning fixture for shipbuilding and repair plates according to claim 4, characterized in that: The vertical plate (68) is provided with a distance positioning device (7) on its side. The distance positioning device (7) includes a U-shaped block (71). The lower part of the inner wall of the U-shaped block (71) is fixed to the side of two of the vertical plates (68). The inner wall of the U-shaped block (71) is fixed with an insert (72). The other two vertical plates (68) are fixed with the same U-shaped block (73). The inner wall of the U-shaped block (73) is fixed with a slotted block (74). The slot of the slotted block (74) is located on the movement trajectory of the insert (72).

6. The welding and positioning fixture for shipbuilding and repair plates according to claim 5, characterized in that: A triangular block (75) is slidably mounted on the top of the slotted block (74).

7. The welding and positioning fixture for shipbuilding and repair plates according to claim 6, characterized in that: The top of both U-shaped block 1 (71) and U-shaped block 2 (73) is provided with an auxiliary device (8). The auxiliary device (8) includes four electric push rods 2 (81). The four electric push rods 2 (81) are respectively fixed on the top of U-shaped block 1 (71) and U-shaped block 2 (73). The telescopic ends of the four electric push rods 2 (81) are each fixed with an L-shaped block (82). The sides of the four L-shaped blocks (82) are each fixed with a push plate (83). The bottom of the four push plates (83) is each fixed with a moving block (84). The four moving blocks (84) are respectively slidably installed on the top of U-shaped block 1 (71) and U-shaped block 2 (73).

8. The welding and positioning fixture for shipbuilding and repair plates according to claim 7, characterized in that: The two push plates (83) located at the second U-shaped block (73) have the same E-shaped block (85) fixed to their sides, and the middle part of the E-shaped block (85) is fixed to the outer wall of the triangular block (75).

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