Hull corner welding machine
By designing the bracket, height adjustment, and limiting mechanism of the hull fillet welder, the problem of blind spots in hull fillet welds was solved, achieving efficient and stable welding results and improving the quality of hull welds and construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-14
Smart Images
Figure CN120791280B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of shipbuilding equipment technology, specifically to a hull fillet welding machine. Background Technology
[0002] In the shipbuilding process, the welding quality of the hull fillet welds directly affects the structural strength and service life of the ship.
[0003] However, there are a large number of T-beams and flat iron structures on the deck of ships. The fillet welds are usually welded with ordinary fillet welders, but there are welding blind spots on both sides, making it impossible to weld to the end. This leads to the need for manual welding for secondary welding. However, the welds formed by manual welding are not smooth, which increases the amount of grinding work and takes a long time. Therefore, we have proposed a hull fillet welder to solve the above problems. Summary of the Invention
[0004] The purpose of this invention is to provide a hull fillet welding machine to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a hull fillet welding machine, comprising a welding machine body and a welding torch, wherein a receiving seat is fixedly installed on the top surface of the welding machine body, and a support mechanism and a height adjustment mechanism are respectively provided on the welding machine body; the support mechanism includes a guide post fixedly installed on the top surface of the welding machine body, a connecting rod slidably connected to the outer surface of the guide post, a central cylinder fixedly installed on the side of the connecting rod, a U-shaped rod rotatably connected inside the central cylinder, an extension seat fixedly installed on the outer end of the U-shaped rod, a clamp for insertion into the welding torch fixedly installed on the side of the extension seat, and a fastening bolt connected to the internal thread of the clamp; the height adjustment mechanism includes a semi-conical block fixedly installed on the surface of the connecting rod and a guide rail fixedly installed on the top surface of the welding machine body, a slide block slidably connected inside the guide rail, a fixing frame fixedly installed on the upper surface of the slide block, a conical column fixedly installed on the side of the fixing frame, the conical outer surface of the conical column slidingly contacting the conical outer surface of the semi-conical block, and the inner... A threaded sleeve is fixedly installed on the guide rail, and a first screw is threadedly connected to the guide rail through the threaded sleeve. A first bearing is provided at the inner end of the first screw, and the first screw is rotatably connected to the slide block through the first bearing. A limiting mechanism is provided on the receiving seat. The limiting mechanism includes a second screw threadedly connected to the receiving seat, a hook rod slidably connected to the receiving seat, a first rotating shaft and a second rotating shaft rotatably disposed inside the receiving seat, and a second rack also slidably disposed inside the receiving seat. A first gear and a driven worm gear are fixedly installed at both ends of the first rotating shaft, and a driving worm and a second gear are fixedly installed at both ends of the second rotating shaft, respectively. A first rack is fixedly installed on the outer surface of the hook rod. The first rack meshes with the first gear. The driven worm gear meshes with the driving worm. The second gear meshes with the second rack. A T-block is fixedly installed on the side of the second rack. A second bearing is provided at the lower end of the second screw, and the second screw is rotatably connected to the T-block through the second bearing.
[0006] Preferably, two retaining rings and a stop block are fixedly installed on the outer surface of the U-shaped rod, with the stop block located between the two retaining rings.
[0007] Preferably, the center cylinder has a fan-shaped cavity inside, and the stop block is located inside the fan-shaped cavity.
[0008] Preferably, there are two guide pillars, which are symmetrically arranged on both sides of the central cylinder.
[0009] Preferably, the outer surface of the threaded sleeve is provided with a raised ring, which is used to increase the contact area between the threaded sleeve and the guide rail.
[0010] Preferably, a knob is fixedly installed at the end of the first screw that passes through the guide rail, and the outer surface of the knob is provided with anti-slip texture.
[0011] Preferably, the hook rod can be divided into a straight rod section and a hook section, wherein the hook section can pass through the receiving seat and hook the outer end of the U-shaped rod.
[0012] Preferably, the extension seat is located between the hook rod and the clamp, and a gap is provided between the hook rod and the clamp.
[0013] Preferably, the T-block is located on the flat side of the second rack and below the second screw.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] 1. This invention, by adding a support mechanism to the welding machine body, can use the clamps at the ends of the U-shaped rods in the support mechanism to fix the welding gun to the outer end of the U-shaped rods, so that the welding guns can be fixed on both sides of the welding machine body respectively, thereby extending the welding length of the overall device. Therefore, according to the principles of left welding method and right welding method of welding process, two welding machines can be used for simultaneous construction, one welding machine body welding the left weld and the other welding machine body welding the right weld, avoiding multiple adjustments of tooling, thereby achieving efficient construction.
[0016] 2. In this invention, a height adjustment mechanism and a limiting mechanism are further provided in the welding machine body. The limiting mechanism can restrict the rotation of the U-shaped rod in the support mechanism and lock the position of the U-shaped rod and even the welding gun at the outer end of the U-shaped rod, thereby improving the stability of the overall structure to meet the actual welding requirements. At the same time, the height adjustment mechanism can appropriately adjust the height of the outer end of the U-shaped rod, making it convenient for the user to assemble the welding gun on the outer end of the U-shaped rod, further ensuring the performance of the overall structure. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0018] Figure 2 This is a schematic diagram of the U-shaped rod structure of the present invention;
[0019] Figure 3 This is a first cross-sectional schematic diagram of the central tube structure of the present invention;
[0020] Figure 4 This is a second cross-sectional schematic diagram of the central tube structure of the present invention;
[0021] Figure 5 This is a schematic diagram of the conical column structure of the present invention;
[0022] Figure 6 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0023] Figure 7 This is an exploded view of the threaded sleeve structure of the present invention;
[0024] Figure 8This is a cross-sectional schematic diagram of the housing structure of the present invention.
[0025] In the diagram: 1. Welding machine body; 11. Welding torch; 12. Receiving seat; 2. Support mechanism; 21. Guide column; 22. Connecting rod; 23. Central cylinder; 24. U-shaped rod; 25. Extension seat; 26. Clamp; 27. Fastening bolt; 28. Retaining ring; 29. Stop block; 3. Height adjustment mechanism; 31. Conical column; 32. Semi-conical block; 33. Fixing frame; 34. Slide seat; 35. Guide rail; 36. First bearing; 37. Threaded sleeve; 38. First screw; 4. Limiting mechanism; 41. Hook rod; 42. Second screw; 43. First rack; 44. First gear; 45. First rotating shaft; 46. Driven worm gear; 47. Driving worm; 48. Second rotating shaft; 49. Second gear; 410. Second rack; 411. T-block; 412. Second bearing. Detailed Implementation
[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0027] Please see Figure 1-8This invention provides a technical solution: a hull fillet welding machine, comprising a welding machine body 1 and a welding torch 11. A receiving seat 12 is fixedly installed on the top surface of the welding machine body 1. A support mechanism 2 and a height adjustment mechanism 3 are respectively provided on the welding machine body 1. The support mechanism 2 includes a guide post 21 fixedly installed on the top surface of the welding machine body 1. A connecting rod 22 is slidably connected to the outer surface of the guide post 21. A central cylinder 23 is fixedly installed on the side of the connecting rod 22. A U-shaped rod 24 is rotatably connected inside the central cylinder 23. An extension seat 25 is fixedly installed at the outer end of the U-shaped rod 24. A clamp 26 that can be inserted into the welding torch 11 is fixedly installed on the side of the extension seat 25. A fastening bolt 27 is threaded inside the clamp 26. The clamp 26 is inserted into the welding torch 11 via the fastening bolt 27, enabling quick disassembly and replacement, adapting to different specifications. The welding torch 11 or welding process requirements; two retaining rings 28 and a stop block 29 are fixedly installed on the outer surface of the U-shaped rod 24. The stop block 29 is located between the two retaining rings 28. A fan-shaped cavity is opened inside the central cylinder 23. The stop block 29 is located inside the fan-shaped cavity. The stop block 29 rotates in the fan-shaped cavity. The rotation range of the U-shaped rod 24 is limited by the retaining rings 28 to prevent the welding torch 11 from being over-adjusted and to ensure operational safety. There are two guide posts 21. The two guide posts 21 are symmetrically arranged on both sides of the central cylinder 23. The symmetrically arranged guide posts 21 provide vertical sliding guidance for the connecting rod 22 to ensure the linear motion accuracy of the welding torch 11 when adjusting the height and avoid deviation. It also ensures the stability of the welding torch 11 during the welding process and reduces the impact of vibration on the weld quality.
[0028] The height adjustment mechanism 3 includes a semi-conical block 32 fixedly mounted on the surface of the connecting rod 22 and a guide rail 35 fixedly mounted on the top surface of the welding machine body 1. A slide block 34 is slidably connected inside the guide rail 35. A fixing frame 33 is fixedly mounted on the upper surface of the slide block 34, and a conical column 31 is fixedly mounted on the side of the fixing frame 33. The conical outer surface of the conical column 31 slides in contact with the conical outer surface of the semi-conical block 32. This conical surface contact design enables stepless height adjustment of the connecting rod 22, achieving precise transmission of height changes through minute displacements, improving the finesse of vertical position adjustment of the welding torch 11. Furthermore, the conical structure generates a frictional self-locking effect under stress, preventing unexpected height changes during welding and ensuring welding accuracy. For consistent seams, a threaded sleeve 37 is fixedly installed inside the guide rail 35, and the guide rail 35 is threadedly connected to a first screw 38 through the threaded sleeve 37. A first bearing 36 is provided at the inner end of the first screw 38, and the first screw 38 is rotatably connected to the slide block 34 through the first bearing 36. A convex ring is provided on the outer surface of the threaded sleeve 37, which is used to increase the contact area between the threaded sleeve 37 and the guide rail 35. The convex ring structure of the threaded sleeve 37 increases the contact area, disperses stress, and extends the service life of the component. A knob is fixedly installed at the end of the first screw 38 that passes through the guide rail 35. The outer surface of the knob is provided with anti-slip texture. The anti-slip texture on the surface of the knob enhances the grip during manual operation and prevents slippage.
[0029] A limiting mechanism 4 is provided on the receiving seat 12. The limiting mechanism 4 includes a second screw 42 threadedly connected to the receiving seat 12, a hook rod 41 slidably connected to the receiving seat 12, a first rotating shaft 45 and a second rotating shaft 48 rotatably disposed inside the receiving seat 12, and a second rack 410 slidably disposed inside the receiving seat 12. A first gear 44 and a driven worm gear 46 are fixedly installed at both ends of the first rotating shaft 45, respectively. A driving worm gear 47 and a second gear 49 are fixedly installed at both ends of the second rotating shaft 48, respectively. A first rack 43 is fixedly installed on the outer surface of the hook rod 41. The first rack 43 meshes with the first gear 44. The driven worm gear 46 meshes with the driving worm gear 47. The second gear 49 meshes with the second rack 410. The side of the second rack 410 is fixedly mounted with... There is a T-block 411, and a second bearing 412 is provided at the lower end of the second screw 42. The second screw 42 is rotatably connected to the T-block 411 through the second bearing 412. The second bearing 412 reduces the friction between the second screw 42 and the T-block 411, making the adjustment smoother. The hook rod 41 can be divided into a straight rod part and a hook part. The hook part can pass through the receiving seat 12 and hook the outer end of the U-shaped rod 24 to prevent it from accidentally falling off. The first rack 43 meshes with the first gear 44 to convert the rotational motion into the linear motion of the hook rod 41, driving the subsequent transmission chain. The extension seat 25 is located between the hook rod 41 and the clamp 26, and there is a gap between the hook rod 41 and the clamp 26. The T-block 411 is located on the flat side of the second rack 410 and is located below the second screw 42.
[0030] Working principle: Rotating the first screw 38 pushes the slide block 34, which is rotatably connected to the end of the first screw 38 via the first bearing 36, to slide on the guide rail 35. At this time, the fixed frame 33 fixed to the upper end of the slide block 34 and the conical column 31 fixed to the side of the fixed frame 33 slide together. The outer surface of the conical column 31 is in sliding contact with the outer surface of the upper half-conical block 32 of the connecting rod 22. Therefore, after the conical column 31 slides, the connecting rod 22 and the central cylinder 23 on the connecting rod 22 can be squeezed to slide along the guide column 21, adjusting the U-shaped rod. The height of the outer end of 24 facilitates the insertion of the welding torch 11 into the clamp 26, and then tightening the fastening bolt 27 so that the fastening bolt 27 tightly abuts against the welding torch 11, fixing the welding torch 11 in place. The clamp 26 is fixedly connected to the U-shaped rod 24 using the extension seat 25. Rotating the first screw 38 in the reverse direction pulls back the tapered column 31, pressing the connecting rod 22, the central cylinder 23, and the U-shaped rod 24 downwards, causing the welding point of the welding torch 11 to contact the weld. Then, rotating the second screw 42, which is fixed to the T-shaped block on the side of the second rack 410, allows the welding point of the welding torch 11 to contact the weld. The second bearing 412 is used to rotatably connect the two parts 411. After rotating the second screw 42, the second rack 410 can be pulled to slide inside the receiving seat 12, driving the second gear 49 to rotate. Under the connection of the second rotating shaft 48, the driving worm 47 rotates together, which drives the driven worm wheel 46 to rotate. The driven worm wheel 46 is fixedly connected to the first gear 44 by the first rotating shaft 45. The first gear 44 rotates synchronously, and the first rack 43 on the surface of the hook rod 41 meshes with the first gear 44. After the first gear 44 rotates, This allows the hook rod 41 to slide on the receiving seat 12. As the hook rod 41 slides outward, the outer end of the U-shaped rod 24 is positioned between the hook rod 41 and the receiving seat 12. Then, the hook rod 41 is driven to slide inward by the second screw 42. The hook part of the hook rod 41 can hook the outer end of the U-shaped rod 24 to fix the U-shaped rod 24 and the welding torch 11. The U-shaped rod 24 and the central cylinder 23 are rotatably connected. Therefore, the outer end of the U-shaped rod 24 can be located on the left or right side of the welding machine body 1 to meet different welding needs.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hull fillet welding machine, characterized in that: The welding machine includes a welding machine body (1) and a welding torch (11). A receiving seat (12) is fixedly installed on the top surface of the welding machine body (1). A support mechanism (2) and a height adjustment mechanism (3) are respectively provided on the welding machine body (1). The support mechanism (2) includes a guide post (21) fixedly installed on the top surface of the welding machine body (1). A connecting rod (22) is slidably connected to the outer surface of the guide post (21). A central cylinder (23) is fixedly installed on the side of the connecting rod (22). A U-shaped rod (24) is rotatably connected inside the central cylinder (23). An extension seat (25) is fixedly installed at the outer end of the U-shaped rod (24). A clamp (26) that can be inserted into the welding torch (11) is fixedly installed on the side of the extension seat (25). A fastening bolt (27) is threadedly connected inside the clamp (26). The height adjustment mechanism (3) includes a semi-conical block (32) fixedly installed on the surface of the connecting rod (22) and a guide rail (35) fixedly installed on the top surface of the welding machine body (1). The guide rail (35) is slidably connected to a slide block (34). A fixing frame (33) is fixedly installed on the upper surface of the slide block (34). A conical column (31) is fixedly installed on the side of the fixing frame (33). The conical outer surface of the conical column (31) slides in contact with the conical outer surface of the semi-conical block (32). A threaded sleeve (37) is fixedly installed inside the guide rail (35). The guide rail (35) is threadedly connected to a first screw (38) through the threaded sleeve (37). A first bearing (36) is provided at the inner end of the first screw (38). The first screw (38) is rotatably connected to the slide block (34) through the first bearing (36). The receiving seat (12) is provided with a limiting mechanism (4). The limiting mechanism (4) includes a second screw (42) threadedly connected to the receiving seat (12), a hook (41) slidably connected to the receiving seat (12), a first rotating shaft (45) and a second rotating shaft (48) rotatably disposed inside the receiving seat (12), and a second rack (410) slidably disposed inside the receiving seat (12). The first rotating shaft (45) is fixedly mounted with a first gear (44) and a driven worm gear (46) at both ends, and the second rotating shaft (48) is fixedly mounted with a driving worm gear (47) at both ends. The hook rod (41) is fixedly mounted with a first rack (43), which meshes with the first gear (44). The driven worm gear (46) meshes with the driving worm (47). The second gear (49) meshes with the second rack (410). A T-block (411) is fixedly mounted on the side of the second rack (410). A second bearing (412) is provided at the lower end of the second screw (42), and the second screw (42) is rotatably connected to the T-block (411) through the second bearing (412). The hook rod (41) can be divided into a straight rod part and a hook part, wherein the hook part can pass through the receiving seat (12) and hook the outer end of the U-shaped rod (24).
2. The hull fillet welding machine according to claim 1, characterized in that: Two retaining rings (28) and a stop block (29) are fixedly installed on the outer surface of the U-shaped rod (24), and the stop block (29) is located between the two retaining rings (28).
3. The hull fillet welding machine according to claim 2, characterized in that: The center cylinder (23) has a fan-shaped cavity inside, and the stop block (29) is located inside the fan-shaped cavity.
4. The hull fillet welding machine according to claim 1, characterized in that: There are two guide posts (21), which are symmetrically arranged on both sides of the central cylinder (23).
5. The hull fillet welding machine according to claim 1, characterized in that: The outer surface of the threaded sleeve (37) is provided with a raised ring, which is used to increase the contact area between the threaded sleeve (37) and the guide rail (35).
6. The hull fillet welding machine according to claim 1, characterized in that: A knob is fixedly installed at the end of the first screw (38) that passes through the guide rail (35), and the outer surface of the knob is provided with anti-slip texture.
7. The hull fillet welding machine according to claim 1, characterized in that: The extension seat (25) is located between the hook rod (41) and the clamp (26), and there is a gap between the hook rod (41) and the clamp (26).
8. The hull fillet welding machine according to claim 1, characterized in that: The T-block (411) is located on the flat side of the second rack (410) and is located below the second screw (42).