A positioning fixture for ship welding

Abstract

This utility model discloses a positioning fixture for ship welding, comprising two symmetrically distributed bases, a first positioning seat, a second positioning seat, a rotary motor, a gear, a semi-gear ring, and an auxiliary positioning mechanism. The upper ends of both bases are provided with first positioning seats via the auxiliary positioning mechanism. One end of each of the two first positioning seats is hinged to a second positioning seat. A mounting plate is slidably connected to one of the bases, and a rotary motor is mounted on the mounting plate. The output shaft of the rotary motor is fixedly connected to a gear, which meshes with a semi-gear ring. Semi-gear rings are fixedly connected to the outer walls of both the first and second positioning seats. Both first positioning seats slide on the bases via the auxiliary positioning mechanism. This utility model enables the rotation of the pipeline during the welding process, allowing workers to weld at various positions on the pipeline without frequent adjustments, greatly improving welding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ship welding technology, specifically a positioning fixture for ship welding. Background Technology

[0002] Ships are a general term for all types of vessels. As means of transportation that can navigate or anchor in waterways to carry out transportation, operations, and other activities, their technical performance, equipment configuration, and structural type vary depending on different usage requirements. In shipbuilding and repair operations, welding is a commonly used processing and joining method.

[0003] Chinese patent CN216939142U discloses a positioning fixture for ship welding, including a base. A first semicircular plate is fixedly connected to the upper surface of the base. A second semicircular plate is hinged to one side of the first semicircular plate. A first rectangular plate and a second rectangular plate are fixedly connected to one side of the first and second semicircular plates, respectively. This positioning fixture for ship welding is configured with the cooperation of the first semicircular plate, the second semicircular plate, the first rectangular plate, the second rectangular plate, a socket, a second rectangular hole, a round rod, and a first insert block. In use, the operator places the pipe inside the first semicircular plate, closes the second semicircular plate to the first semicircular plate, and simultaneously inserts the socket on the first semicircular plate into the second semicircular plate. The operator then rotates the round rod to align the first insert block with the second rectangular hole on the first rectangular plate, locking the first insert block into the second rectangular hole, thereby facilitating pipe welding.

[0004] However, the device cannot rotate when the pipe is being welded, and welding can only be performed on the outer half of the pipe. It cannot adjust the welding position of the pipe in time, which greatly reduces the efficiency of pipe welding. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning fixture for ship welding to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a positioning fixture for ship welding, comprising two symmetrically distributed bases, a first positioning seat, a second positioning seat, a rotary motor, a gear, a half-gear ring, and an auxiliary positioning mechanism. The upper ends of both bases are provided with a first positioning seat via the auxiliary positioning mechanism. One end of each of the two first positioning seats is hinged to a second positioning seat. A mounting plate is slidably connected to one of the bases, and a rotary motor is mounted on the mounting plate. The output shaft of the rotary motor is fixedly connected to a gear, which meshes with a half-gear ring. Half-gear rings are fixedly connected to the outer walls of both the first and second positioning seats. Both first positioning seats slide on the bases via the auxiliary positioning mechanism for position adjustment.

[0007] In a preferred embodiment, a telescopic mechanism is provided between the two first positioning seats, so that one of the first positioning seats can drive the other first positioning seat to rotate synchronously.

[0008] In a preferred embodiment: the telescopic mechanism includes a connecting plate, a limiting plate, and a limiting frame, wherein a connecting plate is fixedly connected to the outer wall of one of the first positioning seats, and a limiting plate is fixedly connected to one end of the connecting plate; and a limiting frame is fixedly connected to the outer wall of the other first positioning seat, and one end of the limiting plate is slidably connected to the limiting frame.

[0009] In a preferred embodiment: the auxiliary positioning mechanism includes a moving motor, a threaded column, and a moving plate. A first groove is provided on the wall of each of the two bases. A moving motor is installed in each of the two first grooves. The output shaft of the moving motor is fixedly connected to the threaded column. The threaded column is threadedly connected to the moving plate. The lower end of the moving plate is slidably connected to the base. The upper end of the moving plate is provided with a second groove that matches the first positioning seat and the second positioning seat. The first positioning seat and the second positioning seat are rotatably connected to the second groove.

[0010] In a preferred embodiment: both the first positioning seat and the second positioning seat are provided with anti-slip pads, and one end of the mounting plate is fixedly connected to the movable plate.

[0011] In a preferred embodiment: both the first positioning seat and the second positioning seat have extension plates on their outer walls. The extension plate on the first positioning seat has a first threaded groove, and the extension plate on the second positioning seat has a second threaded groove. A fastening bolt is threaded into the second threaded groove.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are: This invention, by incorporating a rotary motor, gears, a semi-gear ring, and a telescopic mechanism, enables the pipe to rotate during the welding process. This allows workers to weld at various positions on the pipe without frequent adjustments, significantly improving welding efficiency. The auxiliary positioning mechanism allows for flexible adjustment of the positions of the first and second positioning seats to accommodate pipes of different sizes and locations. The design of anti-slip pads and fastening bolts enhances the positioning stability and welding accuracy of the pipe, ensuring welding quality. Compared to existing technologies, this invention effectively solves the problems of pipe rotation limitations and low welding efficiency during welding, demonstrating high practicality. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the positioning tooling of this utility model; Figure 2 This is a schematic diagram of the overall cross-sectional side view of the positioning fixture of this utility model; Figure 3 This is a bottom view schematic diagram of the positioning tooling structure of this utility model; Figure 4 This is a schematic diagram of the rotary motor, gear, and half-gear ring structure of this utility model; In the diagram: 1. Base; 2. First positioning seat; 3. Second positioning seat; 4. Rotary motor; 5. Gear; 6. Half gear ring; 7. Mounting plate; 8. Connecting plate; 9. Limiting plate; 10. Limiting frame; 11. Moving motor; 12. Threaded column; 13. Moving plate; 14. First groove; 15. Anti-slip pad; 16. Extension plate; 17. First threaded groove; 18. Fastening bolt. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figures 1-4 This utility model provides a technical solution: a positioning fixture for ship welding, comprising two symmetrically distributed bases 1, a first positioning seat 2, a second positioning seat 3, a rotary motor 4, a gear 5, a semi-gear ring 6, and an auxiliary positioning mechanism. The upper ends of both bases 1 are provided with first positioning seats 2 via the auxiliary positioning mechanism. One end of each of the two first positioning seats 2 is hinged to a second positioning seat 3. A mounting plate 7 is slidably connected to one of the bases 1, and a rotary motor 4 is mounted on the mounting plate 7. The output shaft of the rotary motor 4 is fixedly connected to a gear 5, which meshes with a semi-gear ring 5. A semi-gear ring 6 is fixedly connected to the outer walls of both the first positioning seat 2 and the second positioning seat 3. Both first positioning seats 2 slide on the bases 1 via the auxiliary positioning mechanism for position adjustment.

[0016] The pipe to be welded is placed in the two first positioning seats 2, and then the corresponding second positioning seats 3 are closed, so that the pipe is initially wrapped by the first positioning seats 2 and the second positioning seats 3. The fastening bolts 18 are tightened. The first positioning seats 2 and the second positioning seats 3 are tightly connected by the cooperation of the first threaded grooves 17 and the second threaded grooves of the extension plates 16 on the outer walls of the first positioning seats 2 and the second positioning seats 3 with the fastening bolts 18, thus completing the initial positioning of the pipe. According to the welding position and size requirements of the pipe, the moving motor 11 is started. The first positioning seats 2 and the second positioning seats 3 will adjust their positions on the base 1 as the moving plate 13 slides until a suitable welding position is reached. Then the connection between the two pipes is welded. During the welding process, the rotary motor 4 is started to drive the gear 5 to run, which in turn drives the adjacent first positioning seats 2 and the second positioning seats 3 to rotate through the two half gear rings 6. Then, under the action of the limiting plate 9 and the limiting frame 10, the other first positioning seat 2 and the second positioning seat 3 are driven to rotate synchronously. Thus, the two pipes can rotate during welding, thereby increasing the efficiency of pipe welding.

[0017] A telescopic mechanism is provided between the two first positioning seats 2, which is used to drive the other first positioning seat 2 to rotate synchronously, thereby driving the pipe placed in the other first positioning seat 2 to rotate and weld.

[0018] The telescopic mechanism includes a connecting plate 8, a limiting plate 9, and a limiting frame 10. The connecting plate 8 is fixedly connected to the outer wall of one of the first positioning seats 2, and the limiting plate 9 is fixedly connected to one end of the connecting plate 8. The limiting frame 10 is fixedly connected to the outer wall of the other first positioning seat 2, and one end of the limiting plate 9 is slidably connected to the limiting frame 10. When one of the first positioning seats 2 rotates, the telescopic mechanism can drive the other first positioning seat 2 to rotate synchronously, ensuring that the pipeline can rotate in all directions during the welding process and improving welding efficiency.

[0019] The auxiliary positioning mechanism includes a moving motor 11, a threaded column 12, and a moving plate 13. Each of the two bases 1 has a first groove 14 on its wall, and a moving motor 11 is installed in each of the two first grooves 14. The output shaft of the moving motor 11 is fixedly connected to the threaded column 12, and the threaded column 12 is threadedly connected to the moving plate 13. The lower end of the moving plate 13 is slidably connected to the base 1, and the upper end of the moving plate 13 has a second groove that matches the first positioning seat 2 and the second positioning seat 3. The first positioning seat 2 and the second positioning seat 3 are rotatably connected to the second groove. The moving motor 11 can drive the threaded column 12 to rotate, causing the moving plate 13 to slide on the base 1, thereby adjusting the position of the first positioning seat 2 and the second positioning seat 3 on the base 1 to adapt to the welding requirements of pipes of different sizes and positions.

[0020] Both the first positioning seat 2 and the second positioning seat 3 are provided with anti-slip pads 15. The anti-slip pads 15 can effectively increase the friction between the anti-slip pads and the pipe, prevent the pipe from sliding during positioning and welding, and improve the stability of positioning and the accuracy of welding. One end of the mounting plate 7 is fixedly connected to the moving plate 13.

[0021] Both the first positioning seat 2 and the second positioning seat 3 have extension plates 16 on their outer walls. The extension plate 16 on the first positioning seat 2 has a first threaded groove 17, and the extension plate 16 on the second positioning seat 3 has a second threaded groove. A fastening bolt 18 is threaded into the second threaded groove. By passing the fastening bolt 18 through the first threaded groove 17 and threading it into the second threaded groove, the first positioning seat 2 and the second positioning seat 3 can be tightly connected together, further enhancing the positioning effect of the pipeline.

[0022] Finally, it should be noted that: all parts not described in this utility model are the same as or can be implemented using existing technology. The above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning fixture for ship welding, characterized in that: The device includes two symmetrically distributed bases (1), a first positioning seat (2), a second positioning seat (3), a rotary motor (4), a gear (5), a half gear ring (6), and an auxiliary positioning mechanism. The upper ends of the two bases (1) are provided with a first positioning seat (2) through the auxiliary positioning mechanism. One end of each of the two first positioning seats (2) is hinged to a second positioning seat (3). A mounting plate (7) is slidably connected to one of the bases (1). A rotary motor (4) is mounted on the mounting plate (7). A gear (5) is fixedly connected to the output shaft of the rotary motor (4). A half gear ring (6) is meshed with the gear (5). A half gear ring (6) is fixedly connected to the outer wall of both the first positioning seat (2) and the second positioning seat (3). The two first positioning seats (2) slide on the base (1) through the auxiliary positioning mechanism to adjust their positions.

2. The positioning fixture for ship welding according to claim 1, characterized in that: A telescopic mechanism is provided between the two first positioning seats (2) for one of the first positioning seats (2) to drive the other first positioning seat (2) to rotate synchronously.

3. A positioning fixture for ship welding according to claim 2, characterized in that: The telescopic mechanism includes a connecting plate (8), a limiting plate (9), and a limiting frame (10). The connecting plate (8) is fixedly connected to the outer wall of one of the first positioning seats (2), and the limiting plate (9) is fixedly connected to one end of the connecting plate (8). The limiting frame (10) is fixedly connected to the outer wall of the other first positioning seat (2), and one end of the limiting plate (9) is slidably connected to the limiting frame (10).

4. A positioning fixture for ship welding according to claim 3, characterized in that: The auxiliary positioning mechanism includes a moving motor (11), a threaded column (12), and a moving plate (13). The walls of the two bases (1) are provided with first grooves (14), and the moving motors (11) are installed in the two first grooves (14). The output shaft of the moving motor (11) is fixedly connected to the threaded column (12). The threaded column (12) is threadedly connected to the moving plate (13). The lower end of the moving plate (13) is slidably connected to the base (1). The upper end of the moving plate (13) is provided with a second groove that matches the first positioning seat (2) and the second positioning seat (3). The first positioning seat (2) and the second positioning seat (3) are rotatably connected to the second groove.

5. A positioning fixture for ship welding according to claim 4, characterized in that: Both the first positioning seat (2) and the second positioning seat (3) are provided with anti-slip pads (15), and one end of the mounting plate (7) is fixedly connected to the moving plate (13).

6. A positioning fixture for ship welding according to claim 5, characterized in that: Both the first positioning seat (2) and the second positioning seat (3) have extension plates (16) on their outer walls. The extension plate (16) on the first positioning seat (2) has a first threaded groove (17), and the extension plate (16) on the second positioning seat (3) has a second threaded groove. The second threaded groove is threaded with a fastening bolt (18).

Images