Marine steel structure laser welding mechanism and welding maintaining method thereof

Abstract

The invention relates to the field of laser welding, in particular to a laser welding mechanism for a marine steel structure and a welding maintaining method thereof.The laser welding mechanism comprises an adjusting mechanism, and the adjusting mechanism is used for adjusting the circumferential direction of a clamping piece; the control mechanism is used for adjusting the height of the clamping piece; the clamping mechanism is used for carrying out clamping treatment on the marine steel structure; the welding mechanism is used for welding the two marine steel structures; according to the laser welding mechanism for the marine steel structure and the welding maintaining method of the laser welding mechanism for the marine steel structure, the swing tooth and the other swing tooth rotate in the same direction, and therefore the effect that the two adjusting mechanisms and the control mechanism synchronously and reversely deflect together is achieved; and meanwhile, the effect of synchronously positioning, clamping and fixing part of the steel structure in the symmetrical shape is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, in particular to a laser welding mechanism for a ship steel structure and a welding holding method thereof. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding is one of the important aspects of the application of laser material processing technology. In the 1970s, it was mainly used for welding thin-walled materials and low-speed welding. The welding process is a heat conduction type, that is, the laser radiation heats the surface of the workpiece, and the surface heat diffuses to the inside through heat conduction. By controlling the width, energy, peak power and repetition frequency of the laser pulse, the workpiece is melted to form a specific molten pool. Due to its unique advantages, it has been successfully applied to the precision welding of micro and small parts.

[0003] There are several problems with existing laser welding: 1. The existing clamping devices are all standardized and cannot clamp steel structures of different thicknesses and types. At the same time, the mode cannot be switched to clamp steel structures of the same thickness and symmetrical shape. 2. The existing auxiliary beam is fixed and cannot be adjusted in direction, so different steel structures cannot be better coordinated with the welding head for laser welding. Summary of the invention

[0004] The present invention provides a laser welding mechanism for a ship steel structure and a welding holding method thereof to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a laser welding mechanism for a marine steel structure, comprising an adjustment mechanism, the adjustment mechanism being used to adjust the circumferential orientation of a clamping member;

[0006] A control mechanism, which is used to adjust the height of the clamping member;

[0007] A clamping mechanism, which is used for clamping the marine steel structure;

[0008] A welding mechanism, which is used for welding two pieces of ship steel structures;

[0009] An operating table is fixedly installed at the bottom of the clamping mechanism, the control mechanism and the welding mechanism are both fixedly installed on the operating table, and the adjustment mechanism is arranged at the bottom of the control mechanism;

[0010] The adjustment mechanism includes a rotating column, the outer side of which is fixedly connected to a transfer plate, the transfer plate is rotatably connected to the top of the operating table, and a slotted rod is provided at the center of the rotating column;

[0011] A vertical groove is provided on the outer side of the rotating column, and the upper and lower ends of the inner cavity of the vertical groove are respectively fixedly connected with a No. 1 tough ball and a No. 2 tough ball. The outer sides of the No. 1 tough ball and the No. 2 tough ball are extruded and adapted with a ring plate, and the outer side of the ring plate is fixedly connected with a rotating handle, and the end of the ring plate away from the rotating handle is fixedly connected with a swing tooth.

[0012] Preferably, the control mechanism includes a forked plate, which is squeezed and fitted inside the rotating column, and the central part of the bottom of the forked plate is slidably fitted with the slotted rod. The inner and outer sides of the forked plate are slidably fitted with sliding blocks, the bottom of the sliding block is fixedly connected to the slotted rod, and the outer side of the sliding block is fixedly connected to a connecting plate.

[0013] Preferably, the outer side of the slotted rod is extruded and adapted with a patch, the central portion of the patch is fixedly connected with an insertion rod, the insertion rod is inserted into the interior of the rotating column and extends to the outside thereof, the outer side of the insertion rod is sleeved with a fixed block, and the fixed block is fixedly connected to the outer side of the rotating column.

[0014] Preferably, the end of the insertion rod away from the sticking block is fixedly connected to a reducing rod, the reducing rod is inserted into the interior of the fixed block, the outer side of the reducing rod is fixedly connected to a No. 1 spring, the end of the No. 1 spring away from the reducing rod is fixedly connected to the outer side of the fixed block, and the top of the reducing rod is fixedly connected to a magnetic block.

[0015] Preferably, a bottom magnetic rod is inserted into the top of the fixed block, and a No. 2 spring is fixedly connected to the outer side of the bottom magnetic rod, and one end of the No. 2 spring away from the bottom magnetic rod is fixedly connected to the top of the fixed block, and the bottom of the bottom magnetic rod is embedded in the top of the reducing rod and is extruded and adapted to the magnetic block, and a magnetic blocking plate is inserted into the outer side of the fixed block, and one end of the magnetic blocking plate away from the fixed block is fixedly connected to a vertical plate, and a flexible sleeve is fixedly connected to the outer side of the vertical plate, and one end of the flexible sleeve away from the vertical plate is fixedly connected to the outer side of the fixed block.

[0016] Preferably, the clamping mechanism includes a threaded rod, the outer side of the threaded rod is threadedly connected to the connecting plate, the top of the threaded rod is fixedly connected to a telescopic adjustment handle, the bottom of the threaded rod is extruded and adapted with an inner bearing disk, the bottom of the inner bearing disk is fixedly installed with a welt folding plate, a positioning platform is provided below the welt folding plate, and the positioning platform is fixedly connected to the top of the operating table.

[0017] Preferably, a servo motor is fixedly mounted on the outside of the operating table, a frame plate is fixedly connected to the outside of the servo motor housing, the frame plate is fixedly connected to the upper and lower sides of the operating table respectively, and the output end of the servo motor is connected to a screw rod through a coupling.

[0018] Preferably, the welding mechanism includes an internal threaded plate, which is slidably adapted inside the operating table, the inside of the internal threaded plate is threadedly connected to the screw rod, the top of the internal threaded plate is fixedly connected to a connecting frame, the outer end surface of the connecting frame is fixedly connected to a dustproof spring sheet, the end of the dustproof spring sheet away from the connecting frame is fixedly connected to the top of the operating table, the outer side of the internal threaded plate is sleeved with a laser assembly, and the welding head is fixedly installed on the end of the laser assembly close to the operating table.

[0019] Preferably, a U-shaped frame is fixedly installed on the top of the welding head, the inner side of the U-shaped frame is rotatably connected to a rotating shaft, the outer side of the rotating shaft is fixedly connected to an adjusting plate, the outer side of the adjusting plate is fixedly connected to a reset spring, the end of the reset spring away from the adjusting plate is fixedly connected to a support plate, the support plate is fixedly connected to the top of the U-shaped frame, the outer side of the adjusting plate is sleeved with an auxiliary head, the bottom of the auxiliary head is fixedly connected to a maneuvering rope, the maneuvering rope is inserted through the surface of the internal threaded plate, and the outer sides of the maneuvering rope are respectively fixedly connected to a No. 1 elastic sleeve and a No. 2 elastic sleeve.

[0020] A laser welding holding method for a marine steel structure comprises the following steps:

[0021] Step 1: Place the two steel structures to be welded on the two positioning tables respectively, and then the operator manually turns the handle, so that the ring plate connected to the other end will be stressed and rotate circumferentially, wherein the ring plate slides up and down in the vertical groove opened on the surface of the rotating column, so the rotating column will rotate circumferentially accordingly, because the top of the rotating column is extruded and adapted to the fork plate, and the inner and outer sides of the fork plate are slidably connected to the sliding block, so the sliding block will rotate circumferentially with the rotating column, and the outer side of the sliding block is connected to the connecting plate, and the other end of the connecting plate is threadedly connected to the threaded rod, and finally the threaded rod will be above the positioning table, wherein the bottom of the threaded rod is connected to the edge folding plate through the inner bearing disk, so the side folding plate will be directly above the positioning table, and at the same time, adjust the circumferential position of the side folding plate, so that the bending part of the side folding plate will be flush with the part of the steel structure that needs to be welded. Then, the telescopic adjustment handle is rotated forward, so that the threaded rod connected to it will move downward along the connecting plate, and the side folding plate will clamp and fix the steel structure on the positioning platform;

[0022] Step 2: When the position of the side folding plate is determined and before the steel structure is clamped, it is necessary to pull the magnetic resistance plate out from the inside of the fixed block, and then press the reducing rod inward toward the inside of the fixed block, and compress the No. 1 spring fixedly connected to the outside of the reducing rod. Then the insertion rod connected to the inner end of the reducing rod will penetrate into the interior of the rotating column, and the sticking block connected to the other end of the insertion rod will squeeze and limit the slotted rod, and the top of the slotted rod is connected to the sliding block, so the sliding block and the connecting plate will be limited and fixed. At the same time, as the reducing rod penetrates into the interior of the fixed block, the magnetic block fixedly connected to the top of the reducing rod will move to the bottom of the bottom magnetic rod, and then an attraction will be generated between the two, so that the bottom magnetic rod will compress the No. 2 spring and insert it into the inner cavity at the top of the reducing rod, and fit together with the magnetic block at the same time;

[0023] Step 3: By starting the servo motor, the screw connected to its output end through the coupling will rotate forward, and the outer side of the screw is threadedly connected to the internal thread plate, so the internal thread plate will extend into the interior of the operating table along the surface of the screw. At the same time, start the laser assembly, so that the welding head connected to it will generate laser, and the laser welding of the two steel structures will be realized. In addition, the top of the internal thread plate is connected to the connecting frame, so the connecting frame will also move inward with the internal thread plate and compress the dustproof spring sheet. The top of the welding head is connected to the U-shaped frame, and the inner side of the U-shaped frame is connected to the adjustment plate through a rotating shaft, and the surface of the adjustment plate is provided with an auxiliary head, so the auxiliary head will emit an auxiliary light beam to cooperate with the welding head to perform welding together.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The other end of the ring plate is connected to the swing tooth, so the swing tooth will rotate in the same direction as the other swing tooth, thereby making the two adjustment mechanisms and the control mechanism synchronously deflect in the opposite direction, and also playing the role of synchronously positioning and clamping the steel structure of some symmetrical shapes.

[0026] 2. By adjusting the circumferential position of the side folding plate, the bending part of the side folding plate will be aligned with the part of the steel structure that needs to be welded, so that the subsequent welding mechanism can safely and stably weld the steel structure. Then, turn the telescopic adjustment handle forward, so that the threaded rod connected to it will move downward along the connecting plate, and the side folding plate will clamp and fix the steel structure on the positioning platform.

[0027] 3. The connecting frame is located at the bottom of the welding head, and the two move synchronously. Therefore, the connecting frame collects the oxide layer impurities and debris scattered from the welding parts of the two steel structures, while the dust-proof shrapnel protects the screw rod.

[0028] 4. The operator can also manually pull out the adjustment rope, so that the auxiliary head connected to the other end will tilt upward under the action of the adjustment plate, thereby adjusting the height and orientation of the auxiliary head, so that the auxiliary light beam it sprays can better cooperate with the welding head. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The figure is a schematic diagram of the external structure of a laser welding mechanism for a ship steel structure according to the present invention.

[0030] Figure 2 It is a schematic diagram of the overall structure of the present invention when viewed from above.

[0031] Figure 3 It is a schematic cross-sectional structural diagram of the adjustment mechanism of the present invention.

[0032] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0033] Figure 5 It is a schematic diagram of the bottom structure of the adjusting mechanism of the present invention.

[0034] Figure 6 It is a schematic cross-sectional structural diagram of some components of the control mechanism of the present invention.

[0035] Figure 7 It is a schematic diagram of the longitudinal section structure of the remaining components of the control mechanism of the present invention.

[0036] Figure 8 It is a schematic diagram of the vertical cross-section structure of the remaining mechanisms of the control mechanism of the present invention.

[0037] Fig. 9 It is a structural schematic diagram of the clamping mechanism of the present invention.

[0038] Fig.10 It is a schematic cross-sectional structural diagram of some components of the clamping mechanism of the present invention.

[0039] Fig.11 For the present invention Fig.10 Schematic diagram of the enlarged structure at point B in the middle.

[0040] Fig.12 For the present invention Fig.10 Schematic diagram of the enlarged structure at point C in the middle.

[0041] Fig.13It is a structural schematic diagram of the welding mechanism of the present invention.

[0042] Fig.14 For the present invention Fig.13 Schematic diagram of the enlarged structure at D in the middle.

[0043] In the figure: 1, operating table; 2, adjustment mechanism; 3, control mechanism; 4, clamping mechanism; 5, welding mechanism; 21, rotating column; 22, adapter plate; 23, slotted rod; 24, vertical slot; 25, No. 1 tough ball; 26, No. 2 tough ball; 27, collar plate; 28, rotating handle; 29, swinging tooth; 31, fork plate; 32, sliding block; 33, connecting plate; 34, sticking block; 35, interlaced rod; 36, diameter-changing rod; 37, fixed block; 38, No. 1 spring; 39, magnetic block; 30, bottom magnetic rod; 301, No. 2 spring; 30 2. Vertical plate; 303. Magnetic resistance plate; 304. Tough sleeve; 41. Threaded rod; 42. Telescopic adjustment handle; 43. Inner bearing plate; 44. Edge folding plate; 45. Positioning table; 46. Servo motor; 47. Frame plate; 48. Screw rod; 40. Connecting frame; 401. Dustproof spring; 51. Internal threaded plate; 52. Laser assembly; 53. Welding head; 54. U-shaped frame; 55. Rotating shaft; 56. Adjustment plate; 57. Auxiliary head; 58. Return spring; 59. Support plate; 50. Adjustment rope; 501. No. 1 spring sleeve; 502. No. 2 spring sleeve. DETAILED DESCRIPTION

[0044] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] See also Figures 1 to 14 The present invention provides a technical solution: Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, it includes an adjustment mechanism 2, which is used to adjust the circumferential position of the clamping member;

[0046] A control mechanism 3, which is used for adjusting the height of the clamping member;

[0047] A clamping mechanism 4, which is used for clamping the marine steel structure;

[0048] A welding mechanism 5, which is used for welding two pieces of ship steel structures;

[0049] An operating table 1 is fixedly mounted on the bottom of the clamping mechanism 4 , the control mechanism 3 and the welding mechanism 5 are both fixedly mounted on the operating table 1 , and the adjusting mechanism 2 is arranged on the bottom of the control mechanism 3 .

[0050] The adjusting mechanism 2 includes a rotating column 21, the outer side of which is fixedly connected with an adapter plate 22, which is rotatably connected to the top of the operating table 1, a slotted rod 23 is provided at the central part of the interior of the rotating column 21, a vertical slot 24 is provided on the outer side of the rotating column 21, and the upper and lower ends of the inner cavity of the vertical slot 24 are respectively fixedly connected with a No. 1 tough ball 25 and a No. 2 tough ball 26, and the outer sides of the No. 1 tough ball 25 and the No. 2 tough ball 26 are squeezed and adapted with a sleeve plate 27, by placing the two steel structures to be welded on the two positioning tables 45 respectively, and then the operator manually turns the rotating handle 28, so that the sleeve plate 27 connected to the other end thereof will be affected The collar plate 27 is driven by the spring and slides up and down in the vertical groove 24 formed on the surface of the rotating column 21, so the rotating column 21 will rotate in the same direction. The other end of the collar plate 27 is connected to the swinging tooth 29, so the swinging tooth 29 will rotate in the same direction as the other swinging tooth 29, thereby making the two adjusting mechanisms 2 and the control mechanism 3 deflect in the opposite direction synchronously, and also playing the role of synchronously positioning and clamping the steel structure of part of the symmetrical shape. The outer side of the collar plate 27 is fixedly connected with a rotating handle 28, and the end of the collar plate 27 away from the rotating handle 28 is fixedly connected with the swinging tooth 29. In addition, one of the ring plates 27 can be moved upward along the vertical groove 24 and engaged with the No. 1 tough ball 25, wherein the No. 1 tough ball 25 and the No. 2 tough ball 26 are both tough and play a role in limiting and fixing the ring plate 27. At this time, the two swinging teeth 29 on the two ring plates 27 will be staggered, thereby allowing the two adjustment mechanisms 2 and the control mechanism 3 to be able to perform azimuth adjustment processing separately, and at the same time, it also plays a role in distributing, positioning and clamping some irregularly shaped steel structures.

[0051] like Figure 6 , Figure 7 and Figure 8As shown, the control mechanism 3 includes a fork plate 31, which is squeezed and adapted inside the rotating column 21, and the central part of the bottom of the fork plate 31 is slidably adapted with the slotted rod 23. Because the top of the rotating column 21 is squeezed and adapted with the fork plate 31, that is, the fork plate 31 needs to be manually pressed downward or pulled out upward to make it move up and down. Therefore, when the device does not need to operate, the fork plate 31 can be put into the interior of the rotating column 21, thereby avoiding external force collision and rust. The inner and outer sides of the fork plate 31 are slidably adapted with sliding blocks 32, the bottom of the sliding block 32 is fixedly connected to the slotted rod 23, the outer side of the sliding block 32 is fixedly connected with the connecting plate 33, the outer side of the slotted rod 23 is squeezed and adapted with a sticking block 34, the center part of the sticking block 34 is fixedly connected with an interlaced rod 35, the interlaced rod 35 is inserted into the interior of the rotating column 21 and extends to its outside, the outer side of the interlaced rod 35 is sleeved with a fixed block 37, and the fixed block 37 is fixedly connected to the outer side of the rotating column 21. In addition, the rotating column 21 is a column and the fork plate 31 is a plate, so as long as one of them rotates in a circle, both of them will rotate in a circle, and the inner and outer sides of the fork plate 31 are connected to the sliding block 32 for up and down sliding, so the sliding block 32 will rotate in a circle with the rotating column 21, and the outer side of the sliding block 32 is connected to the connecting plate 33, wherein the sliding block 32 moves up and down on the fork plate 31, so that the connecting plate 33 will move up and down with some components inside the clamping mechanism 4, thereby playing a role in adjusting the position of steel structures of different thicknesses.

[0052] The end of the insertion rod 35 away from the sticking block 34 is fixedly connected to a reducing rod 36, the reducing rod 36 is inserted into the interior of the fixed block 37, the outer side of the reducing rod 36 is fixedly connected to a No. 1 spring 38, the end of the No. 1 spring 38 away from the reducing rod 36 is fixedly connected to the outer side of the fixed block 37, the top of the reducing rod 36 is fixedly connected to a magnetic block 39, the top of the fixed block 37 is plugged with a bottom magnetic rod 30, the outer side of the bottom magnetic rod 30 is fixedly connected to a No. 2 spring 301, the end of the No. 2 spring 301 away from the bottom magnetic rod 30 is fixedly connected to the top of the fixed block 37 The bottom of the bottom magnetic rod 30 is embedded in the top of the reducing rod 36 and is squeezed and adapted with the magnetic block 39. The outer side of the fixed block 37 is plugged with a magnetic blocking plate 303. When the position of the side folding plate 44 is determined and before the steel structure is clamped, it is necessary to pull the magnetic blocking plate 303 out from the inside of the fixed block 37, and then press the reducing rod 36 inward toward the inside of the fixed block 37, and compress the No. 1 spring 38 fixedly connected to the outer side of the reducing rod 36, wherein the No. 1 spring 38 plays a role in resetting the reducing rod 36, and then The insertion rod 35 connected to the inner end of the reducing rod 36 will penetrate into the interior of the rotating column 21, and the sticking block 34 connected to the other end of the insertion rod 35 will squeeze and limit the slotted rod 23, and the top of the slotted rod 23 is connected to the sliding block 32, so the sliding block 32 and the connecting plate 33 will be limited and fixed. At the same time, as the reducing rod 36 penetrates into the interior of the fixing block 37, the magnetic block 39 fixedly connected to the top of the reducing rod 36 will move to the bottom of the bottom magnetic rod 30, and then the two will be attracted. The force causes the bottom magnetic rod 30 to compress the second spring 301 and insert into the inner cavity at the top of the variable diameter rod 36, wherein the second spring 301 plays a role in resetting the bottom magnetic rod 30, and at the same time fits together with the magnetic block 39, thereby playing a role in locking the adjustment mechanism 2 and the control mechanism 3, and the end of the magnetic blocking plate 303 away from the fixed block 37 is fixedly connected to the vertical plate 302, and the outer side of the vertical plate 302 is fixedly connected to the flexible sleeve 304, and the end of the flexible sleeve 304 away from the vertical plate 302 is fixedly connected to the outer side of the fixed block 37. When the magnetic blocking plate 303 is reinserted into the fixed block 37, it will be squeezed with the bottom of the bottom magnetic rod 30, and the bottom of the bottom magnetic rod 30 is arc-shaped, so the bottom magnetic rod 30 will be forced to move upward and stretch the second spring 301, and finally the bottom magnetic rod 30 will be blocked by the magnetic block 39, so that the slotted rod 23, the sliding block 32 and the connecting plate 33 can move again.

[0053] like Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 and Fig.14As shown, the clamping mechanism 4 includes a threaded rod 41, the outer side of the threaded rod 41 is threadedly connected to the connecting plate 33, the top of the threaded rod 41 is fixedly connected with a telescopic adjustment handle 42, the bottom of the threaded rod 41 is extruded and adapted with an inner bearing disk 43, the bottom of the inner bearing disk 43 is fixedly installed with a rim folding plate 44, a positioning platform 45 is provided below the rim folding plate 44, the positioning platform 45 is fixedly connected to the top of the operating table 1, a servo motor 46 is fixedly installed on the outer side of the operating table 1, the outer side of the servo motor 46 housing is fixedly connected with a frame plate 47, the frame plate 47 is respectively fixedly connected to the upper and lower sides of the operating table 1, and the output end of the servo motor 46 is connected to a screw rod 48 through a coupling. The other end of the connecting plate 33 is threadedly connected to the threaded rod 41, and finally the threaded rod 41 will be above the positioning platform 45, wherein the bottom of the threaded rod 41 is connected to the side folding plate 44 through the inner bearing plate 43, so the side folding plate 44 will be directly above the positioning platform 45, and at the same time, the circumferential orientation of the side folding plate 44 is adjusted so that the bending part of the side folding plate 44 will be level with the part of the steel structure to be welded, thereby facilitating the subsequent welding mechanism 5 to safely and stably weld the steel structure. Then, the telescopic adjustment handle 42 is rotated forwardly, so that the threaded rod 41 connected thereto will move downward along the connecting plate 33, and at this time, the side folding plate 44 will clamp and fix the steel structure on the positioning platform 45.

[0054] The welding mechanism 5 includes an internal thread plate 51, which is slidably adapted inside the operating table 1, the inside of the internal thread plate 51 is threadedly connected to the screw rod 48, the top of the internal thread plate 51 is fixedly connected to the miscellaneous frame 40, the outer end surface of the miscellaneous frame 40 is fixedly connected to the dustproof spring sheet 401, the end of the dustproof spring sheet 401 away from the miscellaneous frame 40 is fixedly connected to the top of the operating table 1, the outer side of the internal thread plate 51 is sleeved with a laser component 52, and the end of the laser component 52 close to the operating table 1 is fixedly installed with a welding head 53. By starting the servo motor 46, the screw rod 48 connected to its output end through a coupling will rotate forward, and the outer side of the screw rod 48 is threadedly connected to the internal thread plate 51, so the internal thread plate 51 will extend into the interior of the operating table 1 along the surface of the screw rod 48, and at the same time, the laser component 52 is started, so that the welding head 53 connected thereto will generate laser, and the laser welding process of the two steel structures is realized. In addition, the top of the internal thread plate 51 is connected to the connecting frame 40, so the connecting frame 40 will also move inward with the internal thread plate 51 and compress the dust-proof spring sheet 401, wherein the connecting frame 40 is at the bottom of the welding head 53, and the two move synchronously, so the connecting frame 40 plays a role in collecting oxide layer impurities and debris scattered from the welding parts of the two steel structures, and the dust-proof spring sheet 401 plays a role in protecting the screw rod 48.

[0055] A U-shaped frame 54 is fixedly installed on the top of the welding head 53, and a rotating shaft 55 is rotatably connected to the inner side of the U-shaped frame 54. An adjusting plate 56 is fixedly connected to the outer side of the rotating shaft 55. A reset spring 58 is fixedly connected to the outer side of the adjusting plate 56. The end of the reset spring 58 away from the adjusting plate 56 is fixedly connected to a support plate 59. The support plate 59 is fixedly connected to the top of the U-shaped frame 54. An auxiliary head 57 is sleeved on the outer side of the adjusting plate 56. The top of the welding head 53 is connected to the U-shaped frame 54, and the inner side of the U-shaped frame 54 is connected to the adjusting plate 56 through the rotating shaft 55. 6 is connected, and the surface of the adjustment plate 56 is covered with an auxiliary head 57, so the auxiliary head 57 will emit an auxiliary light beam to cooperate with the welding head 53 to perform welding processing together, wherein the auxiliary light beam generates heat convection and surface tension gradient, thereby playing a role in making the two metals merge better and reducing welding defects such as pores and inclusions. The bottom of the auxiliary head 57 is fixedly connected with a mobilization rope 50, and the mobilization rope 50 is inserted on the surface of the internal thread plate 51. The outer side of the mobilization rope 50 is respectively fixedly connected with a first elastic sleeve 501 and a second elastic sleeve 502. In addition, the operator can also manually pull out the mobilization rope 50, so that the auxiliary head 57 connected to the other end will be tilted upward under the action of the adjustment plate 56, thereby playing a role in adjusting the height and orientation of the auxiliary head 57, so that the auxiliary light beam ejected can better cooperate with the welding head 53. In addition, the first elastic sleeve 501 and the second elastic sleeve 502, which are respectively fixedly connected to the outer side of the mobilization rope 50, play a role in calculating and positioning the length of the mobilization rope 50 to be pulled out or contracted. In addition, the return spring 58 serves to return the adjustment plate 56 and the auxiliary head 57 .

[0056] The above-mentioned embodiments are only preferred embodiments of the present invention, and cannot be used to limit the scope of protection of the present invention. Various changes made by ordinary technicians in this field based on the above-mentioned concepts without creative work all fall within the scope of protection of the present invention.

Claims

1. A laser welding mechanism for marine steel structures, characterized in that: include: An adjustment mechanism (2), the adjustment mechanism (2) being used for adjusting the circumferential position of the clamping member; A control mechanism (3), the control mechanism (3) is used for adjusting the height of the clamping member; A clamping mechanism (4), the clamping mechanism (4) is used for clamping a ship steel structure; A welding mechanism (5), the welding mechanism (5) is used for welding two pieces of ship steel structure; An operating table (1) is fixedly mounted on the bottom of the clamping mechanism (4), the control mechanism (3) and the welding mechanism (5) are both fixedly mounted on the operating table (1), and the adjustment mechanism (2) is arranged on the bottom of the control mechanism (3); The adjustment mechanism (2) comprises a rotating column (21), the outer side of the rotating column (21) is fixedly connected to a transfer plate (22), the transfer plate (22) is rotatably connected to the top of the operating table (1), and a slotted rod (23) is arranged at the central part of the rotating column (21); A vertical groove (24) is provided on the outer side of the rotating column (21), and a first tough ball (25) and a second tough ball (26) are respectively fixedly connected to the upper and lower ends of the inner cavity of the vertical groove (24), and a sleeve plate (27) is extruded and adapted on the outer sides of the first tough ball (25) and the second tough ball (26), and a rotating handle (28) is fixedly connected to the outer side of the sleeve plate (27), and a swinging tooth (29) is fixedly connected to the end of the sleeve plate (27) away from the rotating handle (28).

2. The laser welding mechanism for ship steel structure according to claim 1 is characterized in that: The control mechanism (3) comprises a forked plate (31), the forked plate (31) is squeezed and fitted inside the rotating column (21), the central part of the bottom of the forked plate (31) is slidably fitted with the slotted rod (23), the inner and outer sides of the forked plate (31) are both slidably fitted with sliding blocks (32), the bottom of the sliding block (32) is fixedly connected to the slotted rod (23), and the outer side of the sliding block (32) is fixedly connected to a connecting plate (33).

3. The laser welding mechanism for ship steel structure according to claim 1 is characterized in that: The outer side of the slotted rod (23) is extruded and adapted with a sticking block (34), the central part of the sticking block (34) is fixedly connected with an insertion rod (35), the insertion rod (35) is inserted into the interior of the rotating column (21) and extends to the outside thereof, the outer side of the insertion rod (35) is sleeved with a fixing block (37), and the fixing block (37) is fixedly connected to the outer side of the rotating column (21).

4. The laser welding mechanism for ship steel structure according to claim 3 is characterized in that: The end of the insertion rod (35) away from the sticking block (34) is fixedly connected to a reducing rod (36), the reducing rod (36) is inserted into the interior of the fixed block (37), the outer side of the reducing rod (36) is fixedly connected to a No. 1 spring (38), the end of the No. 1 spring (38) away from the reducing rod (36) is fixedly connected to the outer side of the fixed block (37), and the top of the reducing rod (36) is fixedly connected to a magnetic block (39).

5. The laser welding mechanism for ship steel structure according to claim 3 is characterized in that: A bottom magnetic rod (30) is inserted into the top of the fixed block (37), and a No. 2 spring (301) is fixedly connected to the outer side of the bottom magnetic rod (30), and one end of the No. 2 spring (301) away from the bottom magnetic rod (30) is fixedly connected to the top of the fixed block (37), and the bottom of the bottom magnetic rod (30) is embedded in the top of the reducing rod (36) and is pressed and adapted with the magnetic block (39), and a magnetic blocking plate (303) is inserted into the outer side of the fixed block (37), and one end of the magnetic blocking plate (303) away from the fixed block (37) is fixedly connected to the vertical plate (302), and a flexible sleeve (304) is fixedly connected to the outer side of the vertical plate (302), and one end of the flexible sleeve (304) away from the vertical plate (302) is fixedly connected to the outer side of the fixed block (37).

6. The laser welding mechanism for ship steel structure according to claim 1 is characterized in that: The clamping mechanism (4) comprises a threaded rod (41), the outer side of the threaded rod (41) is threadedly connected to the connecting plate (33), the top of the threaded rod (41) is fixedly connected to a telescopic adjustment handle (42), the bottom of the threaded rod (41) is extruded and adapted with an inner bearing disk (43), the bottom of the inner bearing disk (43) is fixedly installed with a rim folding plate (44), a positioning platform (45) is arranged below the rim folding plate (44), and the positioning platform (45) is fixedly connected to the top of the operating table (1).

7. The laser welding mechanism for ship steel structure according to claim 6 is characterized in that: A servo motor (46) is fixedly mounted on the outside of the operating table (1); a frame plate (47) is fixedly connected to the outside of a housing of the servo motor (46); the frame plate (47) is fixedly connected to the upper and lower sides of the operating table (1), respectively; and an output end of the servo motor (46) is connected to a lead screw (48) via a coupling.

8. The laser welding mechanism for ship steel structure according to claim 1 is characterized in that: The welding mechanism (5) comprises an internal thread plate (51), the internal thread plate (51) is slidably adapted inside the operating table (1), the inside of the internal thread plate (51) is threadedly connected to the screw rod (48), the top of the internal thread plate (51) is fixedly connected to a connecting frame (40), the outer end surface of the connecting frame (40) is fixedly connected to a dustproof spring sheet (401), one end of the dustproof spring sheet (401) away from the connecting frame (40) is fixedly connected to the top of the operating table (1), the outer side of the internal thread plate (51) is sleeved with a laser assembly (52), and the end of the laser assembly (52) close to the operating table (1) is fixedly mounted with a welding head (53).

9. The laser welding mechanism for ship steel structure according to claim 8, characterized in that: A U-shaped frame (54) is fixedly installed on the top of the welding head (53), a rotating shaft (55) is rotatably connected to the inner side of the U-shaped frame (54), an adjusting plate (56) is fixedly connected to the outer side of the rotating shaft (55), a return spring (58) is fixedly connected to the outer side of the adjusting plate (56), a support plate (59) is fixedly connected to the end of the return spring (58) away from the adjusting plate (56), and the support plate (59) is fixedly connected to the top of the U-shaped frame (54), an auxiliary head (57) is sleeved on the outer side of the adjusting plate (56), and an adjustment rope (50) is fixedly connected to the bottom of the auxiliary head (57), the adjustment rope (50) is inserted into the surface of the internal thread plate (51), and the outer side of the adjustment rope (50) is respectively fixedly connected to a first elastic sleeve (501) and a second elastic sleeve (502).

10. A laser welding holding method for a ship steel structure, used in the laser welding mechanism for a ship steel structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Place the two steel structures to be welded on two positioning tables (45) respectively, and then the operator manually rotates the rotating handle (28), so that the collar plate (27) connected to the other end thereof is subjected to force and rotates in a circumferential direction, wherein the collar plate (27) slides up and down in the vertical groove (24) provided on the surface of the rotating column (21), so the rotating column (21) will rotate in a circumferential direction accordingly, because the top of the rotating column (21) is squeezed and adapted to the bifurcated plate (31), and the inner and outer sides of the bifurcated plate (31) are slidably connected to the sliding block (32), so the sliding block (32) will rotate in a circumferential direction accordingly. The sliding block (32) rotates circumferentially with the rotating column (21), and the outer side of the sliding block (32) is connected to the connecting plate (33), and the other end of the connecting plate (33) is threadedly connected to the threaded rod (41). Finally, the threaded rod (41) will be above the positioning platform (45), wherein the bottom of the threaded rod (41) is connected to the side folding plate (44) through the inner bearing plate (43), so that the side folding plate (44) will be directly above the positioning platform (45). At the same time, the circumferential position of the side folding plate (44) is adjusted so that the bending part of the side folding plate (44) will be flush with the part of the steel structure that needs to be welded. Then, the telescopic adjustment handle (42) is rotated forward again, so that the threaded rod (41) connected thereto will move downward along the connecting plate (33), and at this time, the side folding plate (44) will clamp and fix the steel structure on the positioning platform (45); Step 2: When the position of the side folding plate (44) is determined and before the steel structure is clamped, it is necessary to pull the magnetic blocking plate (303) out from the inside of the fixed block (37), and then press the reducing rod (36) inward toward the inside of the fixed block (37), so that the spring (38) fixedly connected to the outside of the reducing rod (36) is compressed, and then the insertion rod (35) connected to the inner end of the reducing rod (36) will penetrate into the interior of the rotating column (21), and the sticking block (34) connected to the other end of the insertion rod (35) will press the slotted rod (23). The top of the slotted rod (23) is connected to the sliding block (32), so the sliding block (32) and the connecting plate (33) are fixed in position. At the same time, as the variable diameter rod (36) penetrates into the interior of the fixed block (37), the magnetic block (39) fixedly connected to the top of the variable diameter rod (36) moves to the bottom of the bottom magnetic rod (30). Then, an attractive force is generated between the two, so that the bottom magnetic rod (30) compresses the second spring (301) and inserts into the inner cavity at the top of the variable diameter rod (36), and fits together with the magnetic block (39); Step 3: By starting the servo motor (46), the screw rod (48) connected to the output end thereof through the coupling will rotate in the forward direction, and the outer side of the screw rod (48) is threadedly connected to the internal thread plate (51), so the internal thread plate (51) will extend into the interior of the operating table (1) along the surface of the screw rod (48), and at the same time, the laser assembly (52) is started, so that the welding head (53) connected thereto will generate laser, and the laser welding process of the two steel structures will be realized. In addition, the top of the internal thread plate (51) is connected to the connecting frame (40), so the connecting frame (40) will also move inward with the internal thread plate (51) and compress the dustproof shrapnel (401). The top of the welding head (53) is connected to the U-shaped frame (54), and the inner side of the U-shaped frame (54) is connected to the adjustment plate (56) through a rotating shaft (55), and the surface of the adjustment plate (56) is sleeved with an auxiliary head (57), so that the auxiliary head (57) can emit an auxiliary light beam to cooperate with the welding head (53) to perform welding processing together.

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