Auxiliary equipment for fillet welding of watertight patch plates of ships

Abstract

The present invention relates to the technical field of fillet welding equipment, and specifically to a ship watertight patch fillet welding auxiliary equipment, including a supporting shell, a welding assembly and a positioning assembly, the positioning assembly including a control structure, a first positioning block, a second positioning block and a positioning plate, the supporting shell is provided with a suction cup that can be fixed to the watertight patch, the control structure includes a fixed frame that can move along the X-axis direction, the first positioning block can move with the fixed frame, the second positioning block can move with the fixed frame, the positioning plate can be slidably connected to the fixed frame, and the positioning plate includes a first movable plate and a second movable plate. The present invention enables the watertight patch to fully fit with the hull during welding, avoiding a gap between the watertight patch and the hull after welding is completed, and at the same time, the working state of the positioning assembly can be quickly released after welding is completed so as to be put into a new watertight patch welding work, thereby improving the overall work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of fillet welding equipment, and in particular to a ship watertight patching fillet welding auxiliary equipment. Background Art

[0002] The ship's watertight patch is an important material to ensure the watertightness of the cabin. During the construction of the ship, various types of aggregates need to be transported to the watertight compartment, so it is necessary to make an incision on the watertight bulkhead. After the watertight ship is completed, the gaps or holes on the inner wall of the cabin are generally sealed by watertight patches, and then the watertight patches are welded to the inner wall of the cabin by welding equipment to achieve the sealing of the cabin. At present, manual welding is generally used for welding watertight patches. At some angles of watertight compartments, manual welding is inconvenient. The upper part of the watertight patch is semi-circular, which is more difficult than straight welding. At the same time, the upper part of the watertight patch is not a semi-circular structure, which increases the difficulty of positioning during welding. In addition, when welding watertight patches of different thicknesses, different welding thicknesses and welding speeds are required for welding.

[0003] Chinese patent CN115365619B discloses an auxiliary device for corner welding of watertight patch plates of ships. The position of the two welding heads is adjusted by a first spring and watertight patches of different widths are welded. The distance between the limit column and the center point of the turntable is adjusted, and the welding thickness is adjusted by adjusting the sliding amplitude of the two welding heads. At the same time, the sliding cycle of the two welding heads is changed to avoid the increase of the sliding amplitude of the two welding heads. The water density plate is positioned by a locking mechanism. During use, the scheme relies on the locking mechanism to fix the watertight patch plate in one direction, and the initial position is determined by the card slot of the watertight patch plate itself and the ship beam. However, this position fixation is not stable. When welding, it is easy to cause the watertight patch plate and the hull to not fit fully. At the same time, after the locking mechanism is adjusted and participates in the welding work, it is necessary to control the locking mechanism again to restore it to the initial state, so that it can participate in the subsequent assistance of other watertight patches. This operation takes unnecessary time and reduces the overall welding efficiency. Summary of the invention

[0004] In view of the above problems, an auxiliary equipment for corner welding of watertight patches of ships is provided, in which the position of the watertight patches in the Y-axis direction is fixed by the cooperation of a positioning plate and a supporting shell, the position of the watertight patches in the X-axis direction is fixed by the cooperation of a first positioning block and a supporting shell, the position of the watertight patches in the Z-axis direction is fixed by the cooperation of a second positioning block and a supporting shell, and the position fixation of the watertight patches can be quickly released by the cooperation of a first movable plate and a second movable plate.

[0005] In order to solve the problems of the prior art, a ship watertight patch fillet welding auxiliary equipment is provided, comprising a supporting shell, a welding assembly capable of sliding around the supporting shell and a positioning assembly capable of quickly fixing the position of the supporting shell, the positioning assembly comprising a control structure, a first positioning block, a second positioning block and a positioning plate, a suction cup capable of being fixed to the watertight patch is arranged on the supporting shell, the control structure is arranged on a side of the supporting shell away from the watertight patch, the control structure comprises a fixing frame capable of moving along the X-axis direction, the first positioning block can move with the fixing frame, the first positioning block can contact the side wall of the T-shaped ship beam, the first positioning block is elastically connected to the fixing frame, and the second positioning block is elastically connected to the fixing frame. The two positioning blocks can move with the fixed frame, the second positioning block is provided with an inclined surface that can contact the top of the side wall of the T-shaped ship beam, the second positioning block is elastically connected to the fixed frame, the positioning plate can be slidably connected to the fixed frame, the positioning plate is elastically connected to the fixed frame, the sliding direction of the positioning plate is parallel to the Y-axis direction, the X-axis and the Y-axis are perpendicular to each other in the horizontal plane, the positioning plate includes a horizontally arranged first movable plate and a second movable plate that can be rotatably connected to the first movable plate, the rotation axis of the second movable plate is parallel to the sliding direction of the fixed frame, when the first movable plate and the second movable plate are horizontal, the fixed frame will move to the initial position and will no longer be controlled by the control structure.

[0006] Preferably, the control structure also includes a fixed block, a handwheel, a first gear, a second gear and a transmission belt. The fixed block is slidably connected to the fixed frame. The handwheel is rotatably arranged on the side of the fixed block facing upward along the Z axis. The rotation axis of the handwheel is parallel to the Z axis. One end of the handwheel extends to the interior of the fixed block and is fixedly connected with the first gear. The axis of the first gear is parallel to the Z axis. The second gear is rotatably arranged inside the fixed block. The axis of the second gear is parallel to the Z axis. The second gear is between the fixed frame and the handwheel. A rack that can mesh with the second gear is fixedly arranged on the fixed frame. The first gear is coaxially arranged on the side of the second gear facing upward along the Z axis. The coaxial first gear and the second gear rotate synchronously. The two first gears inside the fixed block are connected by a transmission belt.

[0007] Preferably, the control structure also includes a ring and a first elastic connecting member, the ring is coaxially rotatably arranged above the second gear along the Z axis, the first gear is between the second gear and the ring, the second gear is provided with an irregular through hole that can slide with the first gear, the first elastic component is arranged in the irregular through hole, one end of the first elastic connecting member is in contact with the first gear, and the other end of the first elastic connecting member is in contact with the fixed block, a movable bar is slidably arranged in the fixed frame, the sliding direction of the movable bar is parallel to the Y axis, the positioning plate can push the movable bar to move in a direction close to the ring, and the movable bar is provided with an inclined surface that can cooperate with the ring.

[0008] Preferably, the control structure further includes a first torsion spring, one end of the first torsion spring is fixedly connected to the second gear, the other end of the first torsion spring is fixedly connected to the fixed block, and the axis of the first torsion spring is coaxial with the axis of the second gear.

[0009] Preferably, the positioning assembly also includes a fixing plate, a T-shaped slot is provided on the fixing plate, a limiting protrusion which can slide with the T-shaped slot is fixedly provided on the fixing block, and the fixing plate is fixedly provided on a surface of the supporting shell facing upward along the Z axis.

[0010] Preferably, a first fixing hole is formed on the fixing plate, and a second fixing hole which can be fixedly connected to the first fixing hole by bolts is formed on the supporting shell. The number of the first fixing holes is four, and the number of the second fixing holes is at least four.

[0011] Preferably, the fixing plate is provided with two positioning holes, and the two positioning holes are evenly arranged along the length direction of the T-shaped slide groove. A positioning block that can be inserted into the positioning hole is slidably arranged on the fixing block, and the positioning block and the fixing block are connected by a second elastic connecting piece.

[0012] Preferably, a U-shaped plate is slidably provided on the fixed block, the sliding direction of the U-shaped plate is parallel to the sliding direction of the positioning plate, the U-shaped plate is provided on one end of the fixed block away from the fixed frame, the two raised ends of the U-shaped plate are located inside the fixed block, guide shafts extending toward each other are fixedly provided on the two raised ends of the U-shaped plate, and the positioning block is provided with a guide inclined groove that can slide with the guide shaft.

[0013] Preferably, a limiting bolt is fixedly provided on the fixing block, and a limiting slot capable of slidingly cooperating with the limiting bolt is provided on the U-shaped plate, and the length direction of the limiting slot is parallel to the sliding direction of the U-shaped plate.

[0014] Preferably, the positioning plate also includes a third movable plate, a third elastic connecting member and a second torsion spring. The third movable plate is slidably connected to the fixed frame. The third elastic connecting member is fixedly arranged between the fixed frame and the third movable plate. The third movable plate is fixedly provided with a fixing protrusion capable of pushing the movable bar. The third movable plate is fixedly provided with a third fixing hole, and the number of the third fixing holes is at least two. The first movable plate is provided with a fourth fixing hole capable of cooperating with the third fixing hole, and the number of the fourth fixing holes is at least two. The second torsion spring is fixedly arranged at the connection between the first movable plate and the second movable plate, and the axis of the second torsion spring is coaxial with the rotation axis of the second movable plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention realizes the function of fixing the position of the watertight patch in the Y-axis direction through the positioning plate and the supporting shell, realizes the function of fixing the position of the watertight patch in the X-axis direction through the first positioning block and the supporting shell, realizes the function of fixing the position of the watertight patch in the Z-axis direction through the second positioning block and the supporting shell, and realizes the function of quickly releasing the position fixation of the watertight patch through the first movable plate and the second movable plate, so that the watertight patch can be fully fitted with the hull during welding, avoiding the existence of a gap between the watertight patch and the hull after welding is completed, and at the same time, the working state of the positioning component can be quickly released after welding is completed so as to be put into a new watertight patch welding work, thereby improving the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a three-dimensional schematic diagram of the working state of the auxiliary equipment for the fillet welding of the watertight patching plate of a ship.

[0018] Figure 2 It is a top view of a fillet welding auxiliary device for watertight patching of ships.

[0019] Figure 3 The present invention is a three-dimensional schematic diagram of a positioning component in auxiliary equipment for watertight fillet welding of a ship.

[0020] Figure 4 A three-dimensional cutaway diagram of a positioning component in a ship's watertight fillet welding auxiliary device Figure 1 .

[0021] Figure 5 yes Figure 4 A is a partial enlarged schematic diagram of the middle part.

[0022] Figure 6 A three-dimensional cutaway diagram of a positioning component in a ship's watertight fillet welding auxiliary device Figure 2 .

[0023] Figure 7 yes Figure 6 A partial enlarged schematic diagram of B in the figure.

[0024] Figure 8 It is a three-dimensional exploded schematic diagram of the positioning component.

[0025] Fig. 9 It is a three-dimensional schematic diagram of the fixed block in the positioning component.

[0026] Fig.10 It is a three-dimensional exploded schematic diagram of the fixed block in the positioning component.

[0027] The numbers in the figure are:

[0028] 1-support housing; 11-second fixing hole; 2-welding assembly; 3-positioning assembly; 31-control structure; 311-fixing frame; 3111-rack; 3112-movable bar; 312-fixing block; 3121-limiting protrusion; 3122-positioning block; 3123-second elastic connector; 3124-U-shaped plate; 3125-guide shaft; 3126-guide chute; 3127-limiting bolt; 3128-limiting slide; 313-handwheel; 314-first gear; 315-second gear; 3 151-irregular through hole; 316-transmission belt; 317-circular ring; 318-first elastic connecting member; 319-first torsion spring; 32-first positioning block; 33-second positioning block; 34-positioning plate; 341-first movable plate; 3411-fourth fixing hole; 342-second movable plate; 343-third movable plate; 3431-third fixing hole; 344-third elastic connecting member; 345-second torsion spring; 35-fixed plate; 351-T-shaped slide groove; 352-first fixing hole; 353-positioning hole. DETAILED DESCRIPTION

[0029] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] See also Figure 1 , Figure 3 , Figure 5 and Figure 7As shown, a ship watertight patch fillet welding auxiliary equipment comprises a supporting shell 1, a welding assembly 2 capable of sliding around the supporting shell 1 and a positioning assembly 3 capable of quickly fixing the position of the supporting shell 1, the positioning assembly 3 comprises a control structure 31, a first positioning block 32, a second positioning block 33 and a positioning plate 34, a suction cup capable of being fixed to the watertight patch is provided on the supporting shell 1, the control structure 31 is provided on a side of the supporting shell 1 away from the watertight patch, the control structure 31 comprises a fixing frame 311 capable of moving along the X-axis direction, the first positioning block 32 can move following the fixing frame 311, the first positioning block 32 can contact the side wall of the T-shaped ship beam, the first positioning block 323122 is elastically connected to the fixing frame 311, and the second positioning block 33 can move following the fixing frame 311. The fixed frame 311 moves, and the second positioning block 33 is provided with an inclined surface that can contact the top of the side wall of the T-shaped ship beam. The second positioning block 33 is elastically connected to the fixed frame 311, and the positioning plate 34 is slidably connected to the fixed frame 311. The positioning plate 34 is elastically connected to the fixed frame 311, and the sliding direction of the positioning plate 34 is parallel to the Y-axis direction. The X-axis and the Y-axis are perpendicular to each other in the horizontal plane. The positioning plate 34 includes a horizontally arranged first movable plate 341 and a second movable plate 342 that can be rotatably connected to the first movable plate 341. The rotation axis of the second movable plate 342 is parallel to the sliding direction of the fixed frame 311. When the first movable plate 341 and the second movable plate 342 are horizontal, the fixed frame 311 will move to the initial position and will no longer be controlled by the control structure 31.

[0031] Place the support shell 1 on the watertight patch and press it so that the suction cup works to fix the support shell 1 and the watertight patch. After arranging the hull, the watertight patch, the support shell 1, etc. in sequence, control the positioning plate 34 and the fixing frame 311 to slide relative to each other. After the positioning plate 34 moves to a suitable position in the direction close to the T-shaped beam, control the first movable plate 341 and the second movable plate 342 to rotate relative to each other. The first movable plate 341 and the second movable plate 342 will be in a mutually perpendicular state, and the second movable plate 342 will contact the side wall of the T-shaped beam, so that the support shell 1 The watertight patch is driven to approach the T-shaped beam in the Y-axis direction, and then the control structure 31 is used to make the fixed frame 311 drive the first positioning block 32 and the second positioning block 33 to move. The first positioning block 32 contacts the side wall of the T-shaped beam, so that the support shell 1 drives the watertight patch to approach the T-shaped beam along the X-axis direction. At this time, the inclined surface of the second positioning block 33 contacts the top of the side wall of the T-shaped beam, so that the support shell 1 drives the watertight patch to approach the hull along the Z-axis direction. Then the welding assembly 2 is controlled to work to weld the watertight patch and the hull. When the welding worker After the operation is completed, the second movable plate 342 and the first movable plate 341 are controlled to rotate relative to each other. When the first movable plate 341 and the second movable plate 342 are parallel to each other, the positioning plate 34 moves toward the direction close to the fixed frame 311. The fixed frame 311 will also drive the first positioning block 32 and the second positioning block 33 away from the T-shaped ship beam. Compared with the prior art, the positioning plate 34 of the present invention cooperates with the support shell 1 to fix the position of the watertight patch in the Y-axis direction, the first positioning block 32 and the support shell 1 cooperate to fix the position of the watertight patch in the X-axis direction, and the second positioning block 33 and the support shell 1 cooperate to fix the position of the watertight patch in the Z-axis direction. The first movable plate 341 and the second movable plate 342 cooperate to quickly release the position fixation of the watertight patch, so that the watertight patch can be fully fitted with the hull during welding, avoiding a gap between the watertight patch and the hull after welding. At the same time, after welding, the working state of the positioning assembly 3 can be quickly released so as to be put into a new watertight patch welding work, thereby improving the overall work efficiency.

[0032] See also Figure 3 , Figure 5 and Figure 7As shown: the control structure 31 also includes a fixed block 312, a hand wheel 313, a first gear 314, a second gear 315 and a transmission belt 316. The fixed block 312 is slidably connected to the fixed frame 311. The hand wheel 313 is rotatably arranged on the upper side of the fixed block 312 along the Z axis. The rotation axis of the hand wheel 313 is parallel to the Z axis. One end of the hand wheel 313 extends to the inside of the fixed block 312 and is fixedly connected to the first gear 314. The axis of the first gear 314 is parallel to the Z axis. The second gear 315 is rotatable. The second gear 315 is arranged inside the fixed block 312, the axis of the second gear 315 is parallel to the Z axis, the second gear 315 is between the fixed frame 311 and the hand wheel 313, and a rack 3111 that can mesh with the second gear 315 is fixedly arranged on the fixed frame 311. The second gear 315 is coaxially provided with a first gear 314 on the upper side along the Z axis. The coaxial first gear 314 and the second gear 315 rotate synchronously, and the two first gears 314 inside the fixed block 312 are connected by a transmission belt 316.

[0033] The hand wheel 313 is controlled to rotate. When the hand wheel 313 rotates, the first gear 314 coaxial with the hand wheel 313 will be driven to rotate. When the first gear 314 coaxial with the hand wheel 313 rotates, the first gear 314 coaxial with the second gear 315 will be rotated through the transmission belt 316. When the first gear 314 coaxial with the second gear 315 rotates, it will drive the second gear 315 to rotate synchronously. The second gear 315 pushes the fixed frame 311 through the rack 3111 to drive the first positioning block 323122 and the second positioning block 33 to move. It should be noted that the position of the hand wheel 313 can be fixed. Compared with the prior art, the first gear 314, the second gear 315, the transmission belt 316 and the rack 3111 of the present invention enable the movement of the fixed frame 311 to be controlled, so that the first positioning block 32 and the second positioning block 33 can be moved as needed.

[0034] See also Figure 3 , Figure 5 and Figure 7As shown: the control structure 31 also includes a ring 317 and a first elastic connecting member 318. The ring 317 is coaxially rotatably arranged above the second gear 315 along the Z axis. The first gear 314 is located between the second gear 315 and the ring 317. The second gear 315 is provided with an irregular through hole 3151 that can slide with the first gear 314. The first elastic component is arranged in the irregular through hole 3151. One end of the first elastic connecting member 318 is in contact with the first gear 314, and the other end of the first elastic connecting member 318 is in contact with the fixed block 312. A movable bar 3112 is slidably arranged in the fixed frame 311. The sliding direction of the movable bar 3112 is parallel to the Y axis. The positioning plate 34 can push the movable bar 3112 to move in the direction close to the ring 317. The movable bar 3112 is provided with an inclined surface that can cooperate with the ring 317.

[0035] When the positioning plate 34 is away from the fixed frame 311, the coaxial first gear 314 and the second gear 315 will partially overlap. At this time, the first elastic connecting member 318 provides a small amount of elastic force, and the rotating hand wheel 313 can control the first positioning block 32 and the second positioning block 33 to move. When the positioning plate 34 is close to the fixed frame 311, the movable bar 3112 will contact the inclined surface with the ring 317 so that the ring 317 pushes the first gear 314 to completely enter the second gear 315. At this time, the ring 317 replaces the first gear 314 and is stuck in the transmission belt 316. Compared with the prior art, the ring 317, the first elastic connecting member 318 and the movable bar 3112 of the present invention cooperate to enable the first gear 314 on the second gear 315 to be detached from the transmission belt 316 as needed, thereby eliminating the need to control the first positioning block 32 and the second positioning block 33 to reset by rotating the hand wheel 313 in the opposite direction.

[0036] See also Figure 3 , Figure 5 and Figure 7 As shown: the control structure 31 also includes a first torsion spring 319 , one end of the first torsion spring 319 is fixedly connected to the second gear 315 , the other end of the first torsion spring 319 is fixedly connected to the fixing block 312 , and the axis of the first torsion spring 319 is coaxial with the axis of the second gear 315 .

[0037] When the positioning plate 34 is away from the fixed frame 311 and working, the hand wheel 313 is rotated so that the fixed frame 311 drives the first positioning block 32 and the second positioning block 33 to move. At this time, the first torsion spring 319 is in a compressed state. When the welding work is completed, the positioning plate 34 is released from the working state, and the positioning plate 34 approaches the fixed frame 311 so that the first gear 314 on the second gear 315 is disengaged from the transmission belt 316. The first torsion spring 319 pushes the second gear 315 to rotate, thereby driving the first positioning block 32 and the second positioning block 33 to reset. Compared with the prior art, the first torsion spring 319 of the present invention provides torque to the second gear 315, so that the first positioning block 32 and the second positioning block 33 are automatically reset.

[0038] See also Figure 3 and Figure 8-Figure 10 As shown: the positioning assembly 3 also includes a fixed plate 35, a T-shaped groove 351 is opened on the fixed plate 35, a limiting protrusion 3121 that can slide with the T-shaped groove 351 is fixedly set on the fixed block 312, and the fixed plate 35 is fixedly set on the upper side of the support shell 1 along the Z axis.

[0039] When the positions of the first positioning block 32 and the second positioning block 33 are far away from the working position, the fixed block 312 is controlled to slide on the fixed plate 35 along the length direction of the T-shaped slide groove 351, thereby slightly changing the distance between the first positioning block 32 and the second positioning block 33 and the working position. Compared with the prior art, the fixed block 312 of the present invention can slide on the fixed plate 35, so that the position of the fixed block 312 can be adjusted within a smaller range.

[0040] See also Figure 2-Figure 3 and Figure 8-Figure 10 As shown: the fixing plate 35 is provided with a first fixing hole 352 , the supporting shell 1 is provided with a second fixing hole 11 which can be fixedly connected to the first fixing hole 352 by bolts, the number of the first fixing holes 352 is four, and the number of the second fixing holes 11 is at least four.

[0041] The position of the fixing plate 35 on the supporting shell 1 is changed by connecting the first fixing hole 352 and different second fixing holes 11. Compared with the prior art, the first fixing hole 352 of the present invention cooperates with different second fixing holes 11, so that the position of the fixing block 312 can be adjusted in a larger range.

[0042] See also Figure 3 and Figure 8-Figure 10As shown: a positioning hole 353 is opened on the fixed plate 35, and the number of the positioning holes 353 is two. The two positioning holes 353 are evenly arranged along the length direction of the T-shaped slide groove 351, and a positioning block 3122 that can be inserted into the positioning hole 353 is slidably arranged on the fixed block 312, and the positioning block 3122 is connected to the fixed block 312 through a second elastic connecting piece 3123.

[0043] After the fixing block 312 moves an appropriate distance on the fixing plate 35, the positioning block 3122 will be inserted into the positioning hole 353 to fix the position of the fixing block 312. Compared with the prior art, the positioning block 3122 of the present invention can be inserted into the positioning hole 353, thereby avoiding the fixing block 312 from failing to work normally after being adjusted within a small range.

[0044] See also Figure 3 and Figure 8-Figure 10 As shown: a U-shaped plate 3124 is slidably arranged on the fixed block 312, the sliding direction of the U-shaped plate 3124 is parallel to the sliding direction of the positioning plate 34, the U-shaped plate 3124 is arranged on the end of the fixed block 312 away from the fixed frame 311, the two protruding ends of the U-shaped plate 3124 are located inside the fixed block 312, and guide shafts 3125 extending toward each other are fixedly arranged on the two protruding ends of the U-shaped plate 3124, and a guiding inclined groove 3126 that can slidably cooperate with the guide shaft 3125 is opened on the positioning block 3122.

[0045] When the fixed block 312 needs to move, the U-shaped plate 3124 is controlled to move in a direction away from the fixed block 312, and the guide shaft 3125 cooperates with the guide bevel 3126 to shrink the positioning block 3122 to the inside of the fixed block 312. At this time, the fixed block 312 can slide on the fixed plate 35. Compared with the prior art, the guide shaft 3125 and the guide bevel 3126 of the present invention cooperate so that the movement of the U-shaped plate 3124 can control the movement of the positioning block 3122, thereby facilitating the user to control the fixed state of the fixed block 312.

[0046] See also Figure 3 and Figure 8-Figure 10 As shown: a limiting bolt 3127 is fixedly provided on the fixing block 312 , and a limiting slot 3128 which can slidably cooperate with the limiting bolt 3127 is opened on the U-shaped plate 3124 , and the length direction of the limiting slot 3128 is parallel to the sliding direction of the U-shaped plate 3124 .

[0047] After the U-shaped plate 3124 moves within a certain range, the limiting bolt 3127 will contact the end of the limiting groove 3128. At this time, the U-shaped plate 3124 will not be able to move further. Compared with the prior art, the limiting bolt 3127 and the limiting groove 3128 of the present invention cooperate to limit the moving range of the U-shaped plate 3124, thereby preventing the guide shaft 3125 from disengaging from the guide groove 3126.

[0048] See also Figure 3-Figure 4 As shown: the positioning plate 34 also includes a third movable plate 343, a third elastic connecting member 344 and a second torsion spring 345. The third movable plate 343 is slidably connected to the fixed frame 311. The third elastic connecting member 344 is fixedly arranged between the fixed frame 311 and the third movable plate 343. The third movable plate 343 is fixedly provided with a fixing protrusion capable of pushing the movable bar 3112. The third movable plate 343 is fixedly provided with a third fixing hole 3431. The number of the third fixing holes 3431 is at least two. The first movable plate 341 is provided with a fourth fixing hole 3411 capable of cooperating with the third fixing hole 3431. The number of the fourth fixing holes 3411 is at least two. The second torsion spring 345 is fixedly arranged at the connection between the first movable plate 341 and the second movable plate 342. The axis of the second torsion spring 345 is coaxial with the rotation axis of the second movable plate 342.

[0049] The third elastic connecting member 344 provides a pulling force so that the third movable plate 343 tends to approach the fixed frame 311. The third fixing hole 3431 and the fourth fixing hole 3411 cooperate with each other to change the relative position of the connection between the first movable plate 341 and the second movable plate 342 in the fixed frame 311. Compared with the prior art, the third fixing hole 3431 and the fourth fixing hole 3411 of the present invention complete the position fixation of the third movable plate 343 and the second movable plate 342, thereby changing the relative position of the working end of the positioning plate 34 and the fixed frame 311.

[0050] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A ship watertight patch fillet welding auxiliary device, comprising a supporting shell (1), a welding assembly (2) capable of sliding around the supporting shell (1), and a positioning assembly (3) capable of fixing the position of the supporting shell (1), characterized in that: The positioning assembly (3) comprises a control structure (31), a first positioning block (32), a second positioning block (33) and a positioning plate (34); A suction cup capable of being fixed to the watertight patch plate is provided on the supporting shell (1); The control structure (31) is arranged on a surface of the support shell (1) away from the watertight patch plate, and the control structure (31) includes a fixed frame (311) that can move along the X-axis direction; The first positioning block (32) can move along with the fixing frame (311), the first positioning block (32) can contact the side wall of the T-shaped ship beam, and the first positioning block (32) is elastically connected to the fixing frame (311); The second positioning block (33) can move along with the fixing frame (311), and the second positioning block (33) is provided with an inclined surface capable of contacting the top of the side wall of the T-shaped ship beam, and the second positioning block (33) is elastically connected to the fixing frame (311); The positioning plate (34) is slidably connected to the fixed frame (311); the positioning plate (34) is elastically connected to the fixed frame (311); the sliding direction of the positioning plate (34) is parallel to the Y-axis direction; the X-axis and the Y-axis are perpendicular to each other on a horizontal plane; the positioning plate (34) comprises a first movable plate (341) arranged horizontally and a second movable plate (342) rotatably connected to the first movable plate (341); the rotation axis of the second movable plate (342) is parallel to the sliding direction of the fixed frame (311); when the first movable plate (341) and the second movable plate (342) are horizontal, the fixed frame (311) will move to an initial position and the fixed frame (311) will no longer be controlled by the control structure (31).

2. A ship watertight patch fillet welding auxiliary equipment according to claim 1, characterized in that: The control structure (31) also includes a fixed block (312), a hand wheel (313), a first gear (314), a second gear (315) and a transmission belt (316); The fixed block (312) is slidably connected to the fixed frame (311); a hand wheel (313) is rotatably arranged on a side of the fixed block (312) facing upward along the Z axis; the rotation axis of the hand wheel (313) is parallel to the Z axis; one end of the hand wheel (313) extends into the interior of the fixed block (312) and is fixedly connected to a first gear (314); the axis of the first gear (314) is parallel to the Z axis; a second gear (315) is rotatably arranged in the interior of the fixed block (312); the axis of the second gear (315) is parallel to the Z axis; The second gear (315) is parallel to the Z axis, and is located between the fixed frame (311) and the hand wheel (313). A rack (3111) capable of meshing with the second gear (315) is fixedly arranged on the fixed frame (311). A first gear (314) is coaxially arranged on a surface of the second gear (315) facing upward along the Z axis. The coaxial first gear (314) and the second gear (315) rotate synchronously, and the two first gears (314) inside the fixed block (312) are connected by a transmission belt (316).

3. A ship watertight patch fillet welding auxiliary equipment according to claim 2, characterized in that: The control structure (31) further includes a ring (317) and a first elastic connecting member (318); The circular ring (317) is coaxially rotatably arranged above the second gear (315) along the Z axis, the first gear (314) is located between the second gear (315) and the circular ring (317), the second gear (315) is provided with an irregular through hole (3151) that can slidably cooperate with the first gear (314), the first elastic component is arranged in the irregular through hole (3151), one end of the first elastic connecting member (318) is in contact with the first gear (314), the other end of the first elastic connecting member (318) is in contact with the fixed block (312), a movable bar (3112) is slidably arranged in the fixed frame (311), the sliding direction of the movable bar (3112) is parallel to the Y axis, the positioning plate (34) can push the movable bar (3112) to move in a direction close to the circular ring (317), and the movable bar (3112) is provided with an inclined surface that can cooperate with the circular ring (317).

4. A ship watertight patch fillet welding auxiliary equipment according to claim 3, characterized in that: The control structure (31) further includes a first torsion spring (319); One end of the first torsion spring (319) is fixedly connected to the second gear (315), the other end of the first torsion spring (319) is fixedly connected to the fixing block (312), and the axis of the first torsion spring (319) is coaxial with the axis of the second gear (315).

5. A ship watertight patch fillet welding auxiliary equipment according to claim 4, characterized in that: The positioning assembly (3) also includes a fixing plate (35); A T-shaped slide groove (351) is provided on the fixing plate (35), a limiting protrusion (3121) capable of slidingly cooperating with the T-shaped slide groove (351) is fixedly provided on the fixing block (312), and the fixing plate (35) is fixedly provided on a surface of the supporting shell (1) facing upward along the Z axis.

6. A ship watertight patch fillet welding auxiliary equipment according to claim 5, characterized in that: The fixing plate (35) is provided with a first fixing hole (352), and the supporting shell (1) is provided with a second fixing hole (11) that can be fixedly connected to the first fixing hole (352) by means of bolts. The number of the first fixing holes (352) is four, and the number of the second fixing holes (11) is at least four.

7. A ship watertight patch fillet welding auxiliary equipment according to claim 6, characterized in that: The fixing plate (35) is provided with two positioning holes (353), and the two positioning holes (353) are evenly arranged along the length direction of the T-shaped slide groove (351). A positioning block (3122) capable of being inserted into the positioning hole (353) is slidably arranged on the fixing block (312), and the positioning block (3122) is connected to the fixing block (312) via a second elastic connecting member (3123).

8. A ship watertight patch fillet welding auxiliary equipment according to claim 7, characterized in that: A U-shaped plate (3124) is slidably arranged on the fixed block (312), the sliding direction of the U-shaped plate (3124) is parallel to the sliding direction of the positioning plate (34), the U-shaped plate (3124) is arranged on one end of the fixed block (312) away from the fixed frame (311), the two protruding ends of the U-shaped plate (3124) are located inside the fixed block (312), the two protruding ends of the U-shaped plate (3124) are fixedly arranged with guide shafts (3125) extending towards each other, and the positioning block (3122) is provided with a guide inclined groove (3126) capable of slidably cooperating with the guide shaft (3125).

9. The ship watertight patch fillet welding auxiliary equipment according to claim 8, characterized in that: A limiting bolt (3127) is fixedly arranged on the fixing block (312), and a limiting sliding groove (3128) capable of slidingly cooperating with the limiting bolt (3127) is provided on the U-shaped plate (3124), and the length direction of the limiting sliding groove (3128) is parallel to the sliding direction of the U-shaped plate (3124).

10. The ship watertight patch fillet welding auxiliary equipment according to claim 3, characterized in that: The positioning plate (34) further includes a third movable plate (343), a third elastic connecting member (344) and a second torsion spring (345); The third movable plate (343) is slidably connected to the fixed frame (311); the third elastic connecting member (344) is fixedly arranged between the fixed frame (311) and the third movable plate (343); a fixing protrusion capable of pushing the movable bar (3112) is fixedly arranged on the third movable plate (343); a third fixing hole (3431) is fixedly arranged on the third movable plate (343); the number of the third fixing holes (3431) is at least two; a fourth fixing hole (3411) capable of cooperating with the third fixing hole (3431) is opened on the first movable plate (341); the number of the fourth fixing holes (3411) is at least two; a second torsion spring (345) is fixedly arranged at the connection between the first movable plate (341) and the second movable plate (342); the axis of the second torsion spring (345) is coaxial with the rotation axis of the second movable plate (342).

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