Automatic assembling and welding device for ship stern post

Abstract

The utility model relates to the technical field of ship processing, in particular to an automatic assembling and welding device for a ship stern post, which comprises an annular table, a tension pile and a welding cylinder, wherein the tension pile is mounted on the annular table and used for preventing the stern post from toppling; telescopic piles for adjusting the heights of the tension piles, torsion springs for providing tension and pull ropes connected with the tail column are arranged on the tension piles, the tail column is surrounded by the annular table in an embedded mode, the two tension piles are arranged on the upper surface of the annular table and located on the two sides of the tail column respectively, and the welding cylinder is installed at the bottom of the annular table and aligned to the connecting position of the tail column and the keel. The telescopic pile is slidably installed in the center of the tension pile, the two torsion springs are arranged on the two sides of the top of the telescopic pile, one end of the pull rope is connected with the tail column, and the other end of the pull rope is connected with the torsion springs. The push frame and the torsion springs are used for fixing the tail columns, maintenance is convenient, economical and high in universality, the telescopic piles are used for adapting to the tail columns of different sizes, the welding barrel is used for surrounding assembling and welding, and safety risks are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ship processing, in particular to an automatic welding device for ship stern posts. Background Art

[0002] The ship stern post is an important component of the ship structure, located at the stern of the ship and connecting the stern rudder and the hull. It plays a crucial role in ship design. Generally, the stern post is an inclined column welded to the tail of the keel. This structure can not only carry the propeller but also improve the hydrodynamic performance. However, due to the weight and inclined structure of the stern post, when welding the stern post, it is not only extremely easy to shift and cause welding failure, but also may cause the stern post to fall and lead to safety accidents. Therefore, an automatic welding device is needed to improve safety and accuracy.

[0003] Chinese Patent CN221047700U discloses a welding device for ship stern posts used in ship processing, including a base. Universal wheels are installed on both the left and right sides of the bottom end of the base. Support rods are installed on both the left and right sides of the top end of the base. A first top plate is installed at the top end of the support rod. A fixing mechanism is assembled in the inner cavity of the base. A second motor is screwed to the center position of the top end of the base. One end of a connecting rod is installed at the output end on the upper surface of the second motor, and the other end of the connecting rod extends into the inner cavity of the first top plate. This solution is not only convenient for welding the stern post, with simple and convenient operation, time-saving and labor-saving, but also can fix the overall position to avoid the situation of tipping due to unstable center of gravity, greatly improving the overall safety and being flexible to use.

[0004] The above solution still has several improvement points: The motor provides force to support the stern post, consuming a large amount of energy and having expensive maintenance costs; it can only be applied to stern posts of specific weights, and large-weight stern posts increase the load-bearing burden of the entire device. Content of the Utility Model

[0005] To solve the problems of the prior art, the utility model provides an automatic welding device for ship stern posts, including an annular platform, a tension pile installed on the annular platform for preventing the stern post from tipping, and a welding cylinder for circumferentially welding the stern post. An expansion pile for adjusting the height of the tension pile, a torsion spring for providing tension, and a pull rope for connecting the stern post are arranged on the tension pile. The annular platform surrounds the stern post in an embedded manner. There are two tension piles arranged on the upper surface of the annular platform and located on both sides of the stern post respectively. The welding cylinder is installed at the bottom of the annular platform and is aligned with the connection between the stern post and the keel. The expansion pile is slidably installed at the center of the tension pile. Two torsion springs are arranged on both sides of the top of the expansion pile. One end of the pull rope is connected to the stern post, and the other end is connected to the torsion spring.

[0006] Preferably, positioning holes are arranged in an array on the expansion pile, jack holes are arranged on the tension pile, and a pin passes through the jack hole and the positioning hole to fix the expansion pile.

[0007] Preferably, a brake disc and a fixing pin are provided on the torsion spring. The brake disc is installed at the bottom of the torsion spring, a ring hole is provided on the brake disc, and the fixing pin passes through the ring hole to fix the brake disc.

[0008] Preferably, a hook and a ring belt are connected to the pull rope. The resultant force frame is connected to two torsion springs. The ring belt surrounds the outside of the tail post. There are two hooks, one is connected to the resultant force frame and the other is connected to the pull rope.

[0009] Preferably, a push frame and a side frame are also installed on the ring platform. An arc groove is provided on the ring platform. The push frame is installed on the upper surface of the ring platform and aligned with the inclined surface of the tail post. The push frame is arranged in the arc groove and on both sides of the tail post.

[0010] Preferably, the positioning platform is installed on the upper surface of the ring platform. One end of the push frame is rotatably connected to the positioning platform, and the fitting plate contacts the tail post and is rotatably connected to the other end of the push frame.

[0011] Preferably, one end of the telescopic rod is connected to the side frame, the other end is installed on the side wall of the arc groove, a spring surrounds the outside of the telescopic rod, and a roller is arranged on the upper surface of the side frame.

[0012] Preferably, the guide rail is arranged on the lower surface of the ring platform. The welding cylinder is rotatably connected to the turntable. The turntable slides in the guide rail, and the nozzle is telescopically arranged on the top of the welding cylinder.

[0013] The beneficial effects of the present utility model compared with the prior art are as follows:

[0014] 1. The present utility model uses a push frame and multiple torsion springs to fix the tail post, which is convenient for maintenance and economical. Specifically, the torsion spring supplies force to the tension pile, and the weight of the tail post is shared through the push frame and multiple torsion springs, reducing the force supply requirement of a single torsion spring.

[0015] 2. The present utility model uses a telescopic pile to adapt to tail posts of different sizes, with strong versatility. Specifically, according to the lever principle, taking the connection between the tail post and the keel as the fulcrum, adjusting the height of the telescopic pile can raise the height of the connection between the pull rope and the tail post, thereby reducing the force supply requirement and enabling the entire device to be used for heavy - weight tail posts.

[0016] 3. The present utility model uses a welding cylinder for circumferential welding, reducing the safety risk. Specifically, the nozzle is used to adjust the distance between the welding cylinder and the bottom of the tail post. The turntable moves along the guide rail, and by rotating the turntable, the nozzle can cover the entire connection between the tail post and the keel, reducing the safety risk borne by manual close - range welding. Description of the Drawings

[0017] Figure 1 is a three - dimensional view of an automatic welding device for a ship's tail post.

[0018] Figure 2 is a three - dimensional view of the ring platform in an automatic welding device for a ship's tail postFigure 1 .

[0019] Figure 3 It is a three-dimensional view of the ring platform in an automatic welding device for ship stern posts Figure 2 .

[0020] Figure 4 It is a three-dimensional view of the telescopic pile in an automatic welding device for ship stern posts

[0021] Figure 5 It is a three-dimensional view of the torsion spring in an automatic welding device for ship stern posts

[0022] Figure 6 It is a three-dimensional view of the side frame in an automatic welding device for ship stern posts

[0023] Figure 7 It is a three-dimensional view of the welding cylinder in an automatic welding device for ship stern posts

[0024] The reference numerals in the figure are: 1, tension pile; 2, telescopic pile; 21, positioning hole; 22, pin; 23, jack; 3, torsion spring; 31, brake disc; 32, ring hole; 33, fixing pin; 4, pull rope; 41, hook; 42, ring band; 43, resultant force frame; 5, ring platform; 51, push frame; 511, positioning platform; 512, fitting plate; 52, side frame; 521, telescopic rod; 522, spring; 523, roller; 53, arc groove; 6, welding cylinder; 61, guide rail; 62, turntable; 63, nozzle Specific embodiments

[0025] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific embodiments

[0026] See Figures 1 to 7 As shown, an automatic welding device for ship stern posts includes a ring platform 5, a tension pile 1 installed on the ring platform 5 for preventing the stern post from tipping over, and a welding cylinder 6 for circumferentially welding the stern post. The tension pile 1 is provided with a telescopic pile 2 for adjusting the height of the tension pile 1, a torsion spring 3 for providing tension, and a pull rope 4 connecting the stern post. The ring platform 5 encloses the stern post in an embedded manner. There are two tension piles 1 arranged on the upper surface of the ring platform 5 and located on both sides of the stern post respectively. The welding cylinder 6 is installed at the bottom of the ring platform 5 and is aligned with the connection between the stern post and the keel. The telescopic pile 2 is slidably installed at the center of the tension pile 1. Two torsion springs 3 are arranged on both sides of the top of the telescopic pile 2. One end of the pull rope 4 is connected to the stern post, and the other end is connected to the torsion spring 3

[0027] The device provides a reverse tension for the inclination direction of the stern post through the tension pile 1 to ensure that the stern post does not shake or shift during the welding with the keel. The welding cylinder 6 rotates around the connection of the stern post and the keel on the lower surface of the annular platform 5 to weld the two together, achieving the purpose of automatic welding and assembly. The pull rope 4 surrounds the stern post and evenly transfers the gravity of the stern post to the torsion spring 3. Since the sizes and weights of stern posts of different models are different, according to the lever principle, adjusting the height of the telescopic pile 2 can raise the height of the connection between the pull rope 4 and the stern post, thereby reducing the tension requirement provided by the torsion spring 3. Using multiple small-sized torsion springs 3 to share the tension is not only convenient for maintenance and repair but also more economical.

[0028] See Figures 1 to 4 As shown, positioning holes 21 are arranged in an array on the telescopic pile 2, jack holes 23 are arranged on the tension pile 1, and the pin 22 passes through the jack hole 23 and the positioning hole 21 to fix the telescopic pile 2.

[0029] The positioning holes 21 and the jack holes 23 have the same size, which is convenient for the pin 22 to pass through both to fix the telescopic pile 2 on the tension pile 1. Adjusting the insertion hole position of the pin 22 can adjust the height of the telescopic pile 2.

[0030] See Figures 1 to 5 As shown, a brake disc 31 and a fixing pin 33 are arranged on the torsion spring 3. The brake disc 31 is installed at the bottom of the torsion spring 3, an annular hole 32 is arranged on the brake disc 31, and the fixing pin 33 passes through the annular hole 32 to fix the brake disc 31.

[0031] The brake disc 31 is used to rotate the torsion spring 3. When the pull rope 4 is in a slack state before being connected to the torsion spring 3, after the two are connected, rotate the brake disc 31. While the torsion spring 3 provides tension, the pull rope 4 is straightened. Then, use the fixing pin 33 to pass through the annular hole 32 to lock the brake disc 31 to prevent the tension provided by the torsion spring 3 from decreasing.

[0032] See Figure 1 As shown, hooks 41 and a loop belt 42 are connected to the pull rope 4. The resultant force frame 43 is connected to two torsion springs 3. The loop belt 42 surrounds the outside of the stern post. There are two hooks 41, one is connected to the resultant force frame 43, and the other is connected to the pull rope 4.

[0033] The hooks 41 facilitate the quick connection or disconnection of the pull rope 4 and the resultant force frame 43. The loop belt 42 is used to surround the stern post and evenly transfer the weight of the stern post to the resultant force frame 43 through the pull rope 4. The resultant force frame 43 evenly distributes the weight to the two torsion springs 3 to further reduce the force required by the torsion springs 3.

[0034] See Figure 2 and Figure 3 As shown, a push frame 51 and a side frame 52 are also installed on the annular platform 5. An arc groove 53 is arranged on the annular platform 5. The push frame 51 is installed on the upper surface of the annular platform 5 and is aligned with the inclined surface of the stern post. The push frame 51 is arranged in the arc groove 53 and is on both sides of the stern post.

[0035] The arc groove 53 is used to facilitate the annular platform 5 to embed and surround the stern post. The pushing frame 51 presses against the stern post from its inclined part, reducing the pressure on the tension pile 1. The side frame 52 is used to clamp both sides of the stern post, further preventing the stern post from shaking and causing welding difficulties.

[0036] See Figure 2 As shown, the positioning table 511 is installed on the upper surface of the annular platform 5. One end of the pushing frame 51 is rotatably connected to the positioning table 511, and the fitting plate 512 contacts the stern post and is rotatably connected to the other end of the pushing frame 51.

[0037] The pushing frame 51 adjusts its connection angle with the stern post by rotating on the positioning table 511. The fitting plate 512 is used to reduce the pressure on the pushing frame 51 and prevent itself from being damaged by the weight of the stern post.

[0038] See Figures 2 to 6 As shown, one end of the telescopic rod 521 is connected to the side frame 52, and the other end is installed on the side wall of the arc groove 53. The spring 522 surrounds the outside of the telescopic rod 521, and the roller 523 is arranged on the upper surface of the side frame 52.

[0039] The telescopic rod 521 and the spring 522 enable the side frame 52 to elastically contact the stern post, facilitating the annular platform 5 to embed and surround the stern post. The roller 523 is used to reduce the friction between the stern post and the side frame 52 and improve the service life of both.

[0040] See Figure 2 and Figure 7 As shown, the guide rail 61 is arranged on the lower surface of the annular platform 5. The welding cylinder 6 is rotatably connected to the turntable 62, and the turntable 62 slides in the guide rail 61. The nozzle 63 is telescopically arranged on the top of the welding cylinder 6.

[0041] The nozzle 63 is used to adjust the distance between the welding cylinder 6 and the bottom of the stern post. The turntable 62 moves along the guide rail 61. Due to the arc groove 53, the welding cylinder 6 cannot rotate one week on the annular platform 5. By rotating the turntable 62, the nozzle 63 can cover the entire connection between the stern post and the keel.

[0042] The above embodiments only represent one or several implementation manners of the present utility model, and the description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the appended claims.

Claims

1. An automatic welding device for a ship stern column, comprising a ring platform (5), a tension pile (1) installed on the ring platform (5) to prevent the stern column from tipping over, and a welding cylinder (6) for surrounding the stern column; It is characterized in that The tension pile (1) is provided with a telescopic pile (2) for adjusting the height of the tension pile (1), a torsion spring (3) for providing tension, and a pull rope (4) connected to the tail column. The ring platform (5) is embedded to surround the tail column. Two tension piles (1) are arranged on the upper surface of the ring platform (5) and are respectively located on both sides of the tail column. The welding tube (6) is installed at the bottom of the ring platform (5) and is aligned with the connection between the tail column and the keel. The telescopic pile (2) is slidably installed at the center of the tension pile (1). Two torsion springs (3) are arranged on both sides of the top of the telescopic pile (2). One end of the pull rope (4) is connected to the tail column, and the other end is connected to the torsion spring (3).

2. The automatic welding device for ship stern column according to claim 1 is characterized in that: The telescopic pile (2) is provided with positioning holes (21) in an array, the insertion hole (23) is provided on the tension pile (1), and the latch pin (22) passes through the insertion hole (23) and the positioning hole (21) to fix the telescopic pile (2).

3. The automatic welding device for ship stern column according to claim 1 is characterized in that: A brake disc (31) and a fixing pin (33) are arranged on the torsion spring (3); the brake disc (31) is mounted on the bottom of the torsion spring (3); an annular hole (32) is arranged on the brake disc (31); and the fixing pin (33) passes through the annular hole (32) to fix the brake disc (31).

4. The automatic welding device for ship stern column according to claim 1 is characterized in that: The pull rope (4) is connected with a hook (41) and a ring belt (42), a force frame (43) is connected with two torsion springs (3), the ring belt (42) surrounds the outside of the tail column, and there are two hooks (41), one of which is connected with the force frame (43) and the other is connected with the pull rope (4).

5. The automatic welding device for ship stern column according to claim 1 is characterized in that: A push frame (51) and a side frame (52) are also installed on the ring platform (5), an arc groove (53) is arranged on the ring platform (5), the push frame (51) is installed on the upper surface of the ring platform (5) and is aligned with the inclined surface of the tail column, and the push frame (51) is arranged in the arc groove (53) and is located on both sides of the tail column.

6. The automatic welding device for ship stern column according to claim 5, characterized in that: The positioning platform (511) is installed on the upper surface of the ring platform (5), one end of the push frame (51) is rotatably connected to the positioning platform (511), and the bonding plate (512) contacts the tail column and is rotatably connected to the other end of the push frame (51).

7. The automatic welding device for ship stern column according to claim 5 is characterized in that: One end of the telescopic rod (521) is connected to the side frame (52), and the other end is installed on the side wall of the arc groove (53). The spring (522) surrounds the outside of the telescopic rod (521), and the roller (523) is arranged on the upper surface of the side frame (52).

8. The automatic welding device for ship stern column according to claim 1 is characterized in that: The guide rail (61) is arranged on the lower surface of the ring platform (5), the welding cylinder (6) is rotatably connected to the turntable (62), the turntable (62) slides in the guide rail (61), and the nozzle (63) is telescopically arranged on the top of the welding cylinder (6).

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