A welding device for mooring chain

Abstract

The invention discloses a welding device for a mooring chain, comprising a chain link hanging frame and a mooring chain, a placing frame being provided on one side, a positioning ring being installed thereon, two identical rotating clamping mechanisms being arranged in the interior, each clamping mechanism being composed of a rotating disk, a clamping block and a first telescopic cylinder, a secondary clamping mechanism being arranged in the clamping block, the rotating disks being fixed by connecting blocks, and each being equipped with a multi-degree-of-freedom mechanical welding head, a power gear assembly being further provided on the placing frame to drive the rotating disk to rotate, a limiting sleeve being provided above the device, and a cross-shaped through groove and a telescopic limiting mechanism being arranged in the sleeve to position the mooring chain; the invention clamps the chain link to be processed by the rotating clamping mechanism, and in addition cooperates with two multi-degree-of-freedom mechanical welding heads distributed on both sides to weld the crosspiece of the chain link to be processed at the same time, and the telescopic limiting mechanism can ensure that the chain link to be processed can accurately reach a uniform welding position before welding, thereby improving the welding precision and consistency of the chain link to be processed.

Description

Technical Field

[0001] The invention relates to the technical field of mooring chain welding, in particular to a mooring chain welding device. Background Art

[0002] Mooring chain is a special chain that connects the hull and the basic structure on the shore when the ship is docked. It is mainly divided into two types: geared mooring chain and non-geared mooring chain. The characteristic of geared mooring chain is that there is a crossbar in the middle of the chain link, which makes it stronger than non-gear chain, less deformed, and not easy to twist when stacked, so it is widely used by modern large and medium-sized ships. In the manufacturing process of mooring chain, the crossbar is first installed on the chain link under high temperature by extrusion. Then, after multiple chain links are buckled together to form an integral mooring chain, the crossbars of the chain links are welded one by one to improve the strength of the combination of chain links and crossbars, thereby improving the strength of individual chain links and the overall strength of the mooring chain, making the mooring chain more stable during use and providing more reliable load-bearing capacity.

[0003] In the existing crossbar welding process, the entire mooring chain needs to be laid horizontally in the factory, occupying a large space, and then the crossbars of each chain link are manually welded one by one using manual and hand-held welding guns; and in the welding process, since both sides of the crossbar need to be welded, the heavy and numerous chain links need to be turned over to complete the welding of the entire mooring chain crossbar. Therefore, the welding of the crossbar is more difficult and time-consuming. The overall efficiency of the one-to-one manual welding of the chain links during the welding process is low, and it is difficult to meet the welding needs of many chain links in the mooring chain. Among them, Chinese patent CN117506210A discloses an automatic welding device for ship anchor chains, including a track plate, a base plate, a side plate, an alignment part and a welding mechanism. The two U-shaped plates 1 and 2 provided in the invention cooperate with each other and the two U-shaped plates 2 cooperate with each other to limit the metal rings therein, so that the two adjacent metal rings are both limited and fixed and are kept parallel to the U-shaped plate 1 or the U-shaped plate 2, so as to facilitate the subsequent placement of the horizontal axis into the annular area of ​​the metal ring, improve the stability during the welding process, facilitate the horizontal axis to maintain full contact with the metal ring before welding, and make the horizontal axis and the straight line segment of the metal ring perpendicular to each other, so as to avoid the problem that the contact area between the metal ring and the horizontal axis is smaller due to the offset of the metal ring, and then lead to the problem of lower overall strength of the metal ring after welding. However, the method adopts the method of laying the whole anchor chain horizontally and pulling up and straightening the anchor chain by means of a winding device at the head and tail of the anchor chain, thereby using a track plate to slide the welding device and weld the crosspiece of the chain link. On the one hand, the horizontally laid anchor chain and the track plate will occupy a large space. On the other hand, when welding the anchor chain, when the anchor chain to be processed is tilted, it is necessary to adjust its angle. However, the anchor chain that is straightened by pulling up at both ends will be hindered when adjusting the tilt angle, resulting in insufficient and inaccurate angle adjustment, so that the welding position is not accurate during welding. Summary of the invention

[0004] The purpose of the present invention is to provide a mooring chain welding device in order to solve the problems existing in the above-mentioned background technology for the welding of mooring chain crosspieces.

[0005] The present invention achieves the above-mentioned object through the following technical solutions: a mooring chain welding device is provided, comprising a chain link suspension frame and a mooring chain hung on the chain link suspension frame, a placing frame is provided on one side of the chain link suspension frame, a positioning ring is installed on the placing frame, two identical upper and lower rotating clamping mechanisms for clamping the mooring chain are provided in the positioning ring, the rotating clamping mechanism comprises a rotating disk rotatably connected to the positioning ring, a through opening is provided on the rotating disk, clamping blocks are symmetrically provided in the through opening, a first telescopic cylinder is symmetrically installed on the rotating disk, the telescopic rod of the first telescopic cylinder is connected to the clamping block, and a guide for moving the clamping block is provided in the through opening. rod, a secondary clamping mechanism is arranged in the clamping block; connecting blocks are symmetrically arranged between the two rotating disks, the two connecting blocks fix the two rotating disks in connection, and the two connecting blocks are both provided with multi-degree-of-freedom mechanical welding heads; a first gear is installed on the two rotating disks, and a power gear assembly for driving the first gear to rotate is installed on the mounting frame on one side of the positioning ring; a limiting sleeve for limiting the position of the mooring chain is arranged above the positioning ring, a cross-shaped through groove is arranged in the limiting sleeve, and two sets of upper and lower identical telescopic limiting mechanisms for limiting the distance of the chain links in the downward movement of the mooring chain are installed on the outer side wall of the limiting sleeve.

[0006] Furthermore, a groove is provided in the middle portion of the outer side surface of the two rotating disks, and a positioning boss for rotationally connecting with the groove is provided inside the positioning ring.

[0007] Furthermore, the first telescopic cylinder is symmetrically installed in two opposite side walls of the through opening, the guide rod is symmetrically mounted in the through opening, the two clamping blocks are slidably installed on the guide rod, and the end of the telescopic rod of the first telescopic cylinder is connected to the clamping block.

[0008] Furthermore, a chain inlet is provided on the clamping block, a clamping groove is provided on one side of the chain inlet, the clamping groove is provided with the secondary clamping mechanism, the secondary clamping mechanism includes a second telescopic cylinder symmetrically installed on two side surfaces of the clamping groove, and a clamping plate is connected to the end of the telescopic rod of the second telescopic cylinder.

[0009] Furthermore, the power gear assembly includes a rotating shaft rotatably mounted on the mounting frame, second gears meshing with the first gear being mounted at both ends of the rotating shaft, a third gear being fixedly mounted on the rotating shaft between the two second gears, a driving motor being disposed on one side of the rotating shaft, and a fourth gear meshing with the third gear being disposed at the output end of the driving motor.

[0010] Furthermore, the rotating disk is rotatably connected to the upper and lower parts of the positioning ring, the first gear is installed on the top surface of the rotating disk located at the upper part, and the first gear is installed on the bottom surface of the rotating disk located at the lower part, and the second gear is respectively meshed with the two first gears for transmission; an external plate is connected to the top of the positioning ring, the rotating shaft passes through and is rotatably installed on the external plate, and the rotating shaft is rotatably installed on the external plate and the mounting frame through bearings.

[0011] Furthermore, the telescopic limit mechanism is an identical upper telescopic limit mechanism and a lower telescopic limit mechanism; the telescopic limit mechanism includes a limit block symmetrically and slidably mounted on the limit sleeve, one end of the limit block is provided with an arc groove which fits with the arc shoulder of a single chain link, a pressure sensor is installed in the arc groove, a third telescopic cylinder is symmetrically mounted on the outer side wall of the limit sleeve, and one end of the telescopic rod of the third telescopic cylinder is connected to the limit block.

[0012] Furthermore, a mounting plate is symmetrically connected to the top of the positioning ring, a connecting plate is symmetrically mounted on the bottom outer wall of the limiting sleeve by screws, and the connecting plate is fixedly connected to the mounting plate by screws.

[0013] Furthermore, the edges of the notch of the cross-shaped through groove at the top of the limiting sleeve are chamfered, and a funnel-shaped positioning tube is installed on the top of the limiting sleeve; and a plurality of observation ports are provided on the outer side wall of the positioning ring.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The mooring chain welding equipment of the present invention utilizes a chain link hanger to lift the mooring chain for vertical welding processing, thereby reducing the floor space and reducing space waste; the chain link to be processed and the connecting chain links located above and below the chain link to be processed are clamped by two upper and lower rotating clamping mechanisms, and in addition, with the two multi-degree-of-freedom mechanical welding heads distributed on both sides, both sides of the crossbar of the chain link to be processed can be welded at the same time, thereby significantly improving the welding efficiency, and the secondary clamping mechanism in the clamping block further ensures the stability of the chain link to be processed during the welding process, thereby improving the welding accuracy.

[0016] 2. The telescopic limit mechanism, through the cooperation of the limit block, the pressure sensor and the third telescopic cylinder, can limit the distance of the chain links during the downward movement of the mooring chain, ensuring that the chain links to be processed can accurately reach a uniform welding position before welding, thereby improving the accuracy and consistency of the welding of the chain links to be processed.

[0017] 3. The design of the power gear assembly enables the two rotating disks to rotate synchronously, so that when facing the mooring chain with horizontal and vertical chain links interlaced during the downward movement, the chain link to be processed can always be effectively clamped, and the two multi-degree-of-freedom mechanical welding heads can be driven to rotate together, so as to weld both sides of the crossbar of the chain link to be processed, thereby improving the welding efficiency and automation level.

[0018] 4. The design of the limit sleeve and positioning cylinder can effectively limit and guide the mooring chain, ensuring that the chain link maintains the correct posture during movement and welding. The chamfered edges of the cross-shaped groove at the top of the limit sleeve and the use of the positioning cylinder further improve the positioning accuracy and smoothness of the chain link. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the welding equipment of the present invention;

[0021] Figure 3 is a schematic diagram of a rotating clamping mechanism and a power gear assembly in the present invention;

[0022] Figure 4 It is a schematic diagram of the rotating clamping mechanism and the multi-degree-of-freedom mechanical welding head in the present invention;

[0023] Figure 5 It is a structural schematic diagram of the rotating clamping mechanism in the present invention;

[0024] Figure 6 It is a schematic diagram of the rotating clamping mechanism of the present invention clamping the mooring chain;

[0025] Figure 7 It is a top view of the limiting sleeve and the telescopic limiting mechanism in the present invention;

[0026] Figure 8 for Figure 7 Sectional view of AA in the middle;

[0027] Fig. 9 is a schematic diagram of a telescopic limiting mechanism;

[0028] Fig.10 It is a schematic diagram of the upper telescopic limit mechanism when it is activated;

[0029] Fig.11 It is a schematic diagram of the lower telescopic limit mechanism when it is activated.

[0030] In the figure: 1-chain link suspension frame, 2-placing frame, 3-positioning ring, 4-rotating clamping mechanism, 5-connecting block, 6-mechanical welding head, 7-power gear assembly, 8-limiting sleeve, 9-telescopic limiting mechanism, 10-external plate, 11-connecting plate, 12-positioning cylinder, 13-observation port;

[0031] 31-positioning boss, 32-mounting plate, 41-rotating disk, 42-clamping block, 43-first telescopic cylinder, 44-guide rod, 45-secondary clamping mechanism, 46-first gear, 71-rotating shaft, 72-second gear, 73-third gear, 74-driving motor, 75-fourth gear, 81-through slot, 91-upper telescopic limit mechanism, 92-lower telescopic limit mechanism, 93-limiting block, 94-pressure sensor, 95-third telescopic cylinder;

[0032] 411 -through opening, 412 -groove, 421 -chain inlet, 422 -clamping groove, 451 -second telescopic cylinder, 452 -clamping plate, 931 -arc groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, 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 creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] Combination Figures 1 to 11A mooring chain welding device shown in the figure comprises a chain link suspension frame 1 and a mooring chain mounted on the chain link suspension frame 1, a placing frame 2 is provided on one side of the chain link suspension frame 1, a positioning ring 3 is installed on the placing frame 2, two identical upper and lower rotating clamping mechanisms 4 for clamping the mooring chain are arranged in the positioning ring 3, the rotating clamping mechanism 4 comprises a rotating disk 41 rotatably connected to the positioning ring 3, a through hole 411 is provided on the rotating disk 41, a clamping block 42 is symmetrically arranged in the through hole 411, a first telescopic cylinder 43 is symmetrically installed on the rotating disk 41, the telescopic rod of the first telescopic cylinder 43 is connected to the clamping block 42, a guide rod 44 for moving the clamping block 42 is installed in the through hole 411, and the clamping A secondary clamping mechanism 45 is provided in the block 42; a connecting block 5 is symmetrically provided between the two rotating disks 41, and the two connecting blocks 5 fix the two rotating disks 41 together, and a multi-degree-of-freedom mechanical welding head 6 is installed on the two connecting blocks 5; a first gear 46 is installed on the two rotating disks 41, and a power gear assembly 7 for driving the first gear 46 to rotate is installed on the mounting frame 2 on one side of the positioning ring 3; a limiting sleeve 8 for limiting the position of the mooring chain is provided above the positioning ring 3, and a cross-shaped through groove 81 is provided in the limiting sleeve 8, and two sets of identical telescopic limiting mechanisms 9 for limiting the distance of the chain links in the process of the mooring chain moving downward are installed on the outer wall of the limiting sleeve 8;

[0036] Reference Figure 1-3 As shown, a mounting plate 32 is symmetrically connected to the top of the positioning ring 3, and a connecting plate 11 is symmetrically installed on the bottom outer wall of the limiting sleeve 8 by screws, and the connecting plate 11 is fixedly connected to the mounting plate 32 by screws, thereby effectively installing and supporting the limiting sleeve 8; the notch edges of the cross-shaped through groove 81 at the top of the limiting sleeve 8 are chamfered, and a funnel-shaped positioning cylinder 12 is installed on the top of the limiting sleeve 8;

[0037] When in use, the chain link hanger 1 drives the shaft roller thereon to rotate through the reduction motor, so that one end of the mooring chain moves downward, and the positioning cylinder 12 is located directly below the downward end of the mooring chain. The mooring chain can smoothly enter the funnel-shaped positioning cylinder 12 during the downward movement. As the mooring chain continues to move downward, the positioning cylinder 12 plays a guiding role, and when the mooring chain moves down to the top of the limiting sleeve 8, the chamfer at the notch of the cross-shaped through groove 81 on the limiting sleeve 8 can help the mooring chain to smoothly enter the through groove 81 of the limiting sleeve 8, thereby the through groove 81 limits and guides the mooring chain and ensures that it maintains a correct posture during the downward movement, that is, avoids the mooring chain from deflecting at a large angle.

[0038] Reference Figure 2 , Figure 7-10As shown, the telescopic limit mechanism 9 is an upper telescopic limit mechanism 91 and a lower telescopic limit mechanism 92 that are identical; the telescopic limit mechanism 9 comprises a limit block 93 symmetrically and slidably mounted on the limit sleeve 8, one end of the limit block 93 is provided with an arc groove 931 that fits with the arc shoulder of the single chain link, a pressure sensor 94 is installed in the arc groove 931, and a third telescopic cylinder 95 is symmetrically mounted on the outer side wall of the limit sleeve 8, and one end of the telescopic rod of the third telescopic cylinder 95 is connected to the limit block 93;

[0039] Reference Fig.10 As shown, when in use, as the mooring chain moves downward, in order to limit the distance of the chain links in the process of the mooring chain moving downward, to ensure that the chain links to be processed can accurately reach a uniform welding position before welding, the upper telescopic limit mechanism 91 is started to limit the horizontal single chain link, that is, in the process of the mooring chain moving downward, the third telescopic cylinders 95 on both sides are started to push the two symmetrical limit blocks 93 to slide into the through groove 81 to a proper position, and the arc shoulders on both sides of the lower part of the horizontal single chain link will fit with the arc groove 931 at one end of the limit block 93 during the downward movement, so that the arc shoulders of the chain link will squeeze the pressure sensor 94, and when the set pressure value is reached, the signal will be transmitted, thereby immediately suspending the operation of the reduction motor on the chain link suspension frame 1, thereby suspending the downward movement of the mooring chain;

[0040] However, since the entire mooring chain is formed by interlacing horizontal and vertical chain links, after the mooring chain continues to move downward, the upper telescopic limit mechanism 91 cannot limit the next vertical single chain link, so the lower telescopic limit mechanism 92 needs to be used for limiting.

[0041] Reference Fig.11 As shown, when the lower mooring chain continues to move downward after welding, the upper telescopic limit mechanism 91 is first started to reset its third telescopic cylinder 95, and then the chain link suspension frame 1 starts its reduction motor to drive the mooring chain to continue to move downward, and the lower telescopic limit mechanism 92 is started during its downward movement, and the lower telescopic limit mechanism 92 starts its third telescopic cylinder 95 to push the two symmetrical limit blocks 93 to slide into the through groove 81 to a proper position; similar to the above-mentioned upper telescopic limit mechanism 91, when the arc shoulder of a single chain link fits with the arc groove 931 at one end of the limit block 93, the arc shoulder of the chain link will squeeze the pressure sensor 94 in the lower telescopic limit mechanism 92, and when the set pressure value is reached, the signal will be transmitted, thereby immediately suspending the operation of the reduction motor on the chain link suspension frame 1, thereby suspending the downward movement of the mooring chain;

[0042] Therefore, during the downward movement of the mooring chain, the downward movement distance of the entire mooring chain is controlled by the successive cyclic limiting of the upper telescopic limiting mechanism 91 and the lower telescopic limiting mechanism 92, wherein the vertical distance between the limiting blocks 93 in the upper telescopic limiting mechanism 91 and the lower telescopic limiting mechanism 92 is the distance between two adjacent chain links in the vertical state of the mooring chain, which can be adjusted according to the actual setting of the chain links, so as to ensure that the chain links to be processed can accurately reach a relatively uniform welding position before welding.

[0043] Reference Figure 3-6 As shown, the first telescopic cylinder 43 is symmetrically installed in the two opposite side walls of the through-opening 411, the guide rod 44 is symmetrically mounted in the through-opening 411, and the two clamping blocks 42 are slidably installed on the guide rod 44. The end of the telescopic rod of the first telescopic cylinder 43 is connected to the clamping block 42; the clamping block 42 is provided with a chain inlet 421, and a clamping groove 422 is provided on one side of the chain inlet 421. A secondary clamping mechanism 45 is provided in the clamping groove 422. The secondary clamping mechanism 45 includes a second telescopic cylinder 451 symmetrically installed in the two side surfaces of the clamping groove 422, and a clamping plate 452 is connected to the end of the telescopic rod of the second telescopic cylinder 451;

[0044] When in use, when the mooring chain passes through the limiting sleeve 8 and enters the rotating clamping mechanism 4, the two first telescopic cylinders 43 in the symmetrical position are first started to push the clamping blocks 42 to the middle to clamp the chain link, wherein the guide rod 44 plays a guiding role when the clamping blocks 42 slide; Figure 6 As shown, both the upper and lower groups of rotating clamping mechanisms 4 use clamping blocks 42 to clamp the chain links, wherein the two clamping blocks 42 located at the upper part clamp the upper part of the chain link to be processed and also clamp the chain link above the chain link to be processed, while the two clamping blocks 42 located at the lower part clamp the lower part of the chain link to be processed and also clamp the chain link below the chain link to be processed, thereby eliminating the influence of the upper and lower chain links buckled with the chain link to be processed on the processing chain link when the multi-degree-of-freedom mechanical welding head 6 welds the chain link to be processed, thereby ensuring the stability of the chain link to be processed during the welding process;

[0045] In addition, during the process of the two clamping blocks 42 moving toward the middle to clamp, if the chain link to be processed is in an inclined state relative to the chain link buckled above, it is very likely that during the process of the two clamping blocks 42 clamping the chain link to be processed, the chain link to be processed cannot accurately enter the clamping groove 422, thereby causing the chain link to be processed after clamping to be in an inclined state, so that the mechanical welding head 6 cannot perform normal welding; for this reason, in the present invention, while enlarging the chain inlet 421 on the clamping block 42, a secondary clamping mechanism 45 is also added to the clamping block 42, thereby ensuring that the chain link to be processed can enter the clamping groove 422 of the clamping block 42, and using the secondary clamping mechanism 45 to clamp the side of the chain link to be processed and align its position, thereby further ensuring the stability of the chain link to be processed during welding and improving the welding accuracy;

[0046] Reference Figure 4 As shown, after the rotating clamping mechanism 4 accurately and stably clamps the chain link to be processed, the multi-degree-of-freedom mechanical welding heads 6 located on both sides of the chain link to be processed are started, thereby welding the two sides of the crossbar of the chain link respectively; a plurality of observation ports 13 are provided on the outer wall of the positioning ring 3. During the welding process, the observation ports 13 facilitate the operator to observe the welding process in real time, and to discover and solve problems in time.

[0047] Reference Figure 2-3 As shown, the power gear assembly 7 includes a rotating shaft 71 rotatably mounted on the mounting frame 2, and second gears 72 meshing with the first gear 46 are mounted at both ends of the rotating shaft 71, and a third gear 73 is fixedly mounted on the rotating shaft 71 between the two second gears 72. A driving motor 74 is mounted on one side of the rotating shaft 71, and a fourth gear 75 meshing with the third gear 73 is mounted on the output end of the driving motor 74; the upper and lower rotating disks 41 are rotatably connected in the positioning ring 3, and the top surface of the rotating disk 41 located at the upper part is mounted with the first gear 46, and the fourth gear 75 meshing with the third gear 73 is mounted on the output end of the driving motor 74. A first gear 46 is installed on the bottom surface of the rotating disk 41 at the lower part, and the second gear 72 is meshed with the two first gears 46 for transmission; an external plate 10 is connected to the top of the positioning ring 3, and a rotating shaft 71 passes through and is rotatably installed on the external plate 10, and the rotating shaft 71 is rotatably installed on the external plate 10 and the mounting frame 2 through bearings; wherein the driving motor 74 adopts a reduction motor; a groove 412 is provided in the middle part of the outer side surface of the two rotating disks 41, and a positioning boss 31 for rotatably connecting with the groove 412 is provided inside the positioning ring 3;

[0048] When in use, the drive motor 74 is started to drive the fourth gear 75 to rotate. The rotation of the fourth gear 75 drives the third gear 73, the rotating shaft 71 and the two second gears 72 to rotate. Then the two second gears 72 respectively drive the upper and lower first gears 46 to rotate. As a result, the two rotating disks 41 are rotationally connected with the two positioning bosses 31 in the positioning ring 3 through the grooves 412, driving the overall rotating clamping mechanism 4, the connecting block 5 and the multi-degree-of-freedom mechanical welding head 6 to rotate together in the positioning ring 3; in this way, when facing a mooring chain with interlaced horizontal and vertical chain links during the downward movement, the chain links to be processed can always be effectively clamped, thereby ensuring the accuracy and stability of welding and improving the overall automation efficiency.

[0049] The specific workflow of the present invention is:

[0050] The chain link hanging frame 1 drives the shaft roller on it to rotate through the reduction motor, so that one end of the mooring chain moves downward. During the downward movement, the positioning cylinder 12 plays a guiding role. Then the mooring chain smoothly enters the through groove 81 with the help of the chamfer opened at the top notch of the limiting sleeve 8. Thus, the cross-shaped through groove 81 limits and guides the mooring chain and ensures that it maintains a correct posture during the downward movement; the telescopic limiting mechanism 9 in the limiting sleeve 8 controls the downward movement distance of the entire mooring chain, thereby ensuring that the chain links to be processed can accurately reach a relatively uniform welding position before welding; when the chain link to be processed reaches the rotating clamping mechanism 4, the upper and lower rotating tightening mechanisms 4 are started to clamp the chain link, and when it is being processed, the upper and lower rotating tightening mechanisms 4 are started to clamp the chain link. During the clamping process, the two symmetrical clamping blocks 42 move toward the middle, and the two sides of the chain link to be processed then pass through the chain inlet 421 and enter the clamping groove 422, and then the second telescopic cylinder 451 is started to push the clamping plate 452 to clamp the two sides of the chain link to be processed, so as to ensure that the chain link to be processed is in the positive position, thereby avoiding welding misalignment caused by its tilted position; after the rotating clamping mechanism 4 accurately and stably clamps the chain link to be processed, the multi-degree-of-freedom mechanical welding head 6 located on both sides of the chain link to be processed is started, thereby welding the two sides of the crossbar of the chain link respectively, and after the welding is completed, the mooring chain continues to move downward, so as to weld the crossbars of the chain link one by one, until the welding of the crossbars on the entire mooring chain is completed.

[0051] Among them, the chain link hanger used in the present invention is a prior art, so it is not described in detail. In actual production work, it plays a role of stable support and operation for the lifting and lowering of the mooring chain during welding. In addition, the automatic and stable operation of the telescopic limit mechanism, the rotating clamping mechanism and the multi-degree-of-freedom mechanical welding head in the present invention also requires the use of automatic control equipment and control systems to complete the automatic operation of the overall welding equipment.

[0052] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0053] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A mooring chain welding device, comprising a chain link hanger (1) and a mooring chain mounted on the chain link hanger (1), characterized in that: A mounting frame (2) is provided on one side of the chain link suspension frame (1), a positioning ring (3) is installed on the mounting frame (2), two identical upper and lower rotating clamping mechanisms (4) for clamping the mooring chain are arranged in the positioning ring (3), the rotating clamping mechanism (4) comprises a rotating disk (41) rotatably connected to the positioning ring (3), a through hole (411) is provided on the rotating disk (41), a clamping block (42) is symmetrically arranged in the through hole (411), a first telescopic cylinder (43) is symmetrically installed on the rotating disk (41), a telescopic rod of the first telescopic cylinder (43) is connected to the clamping block (42), a guide rod (44) for moving the clamping block (42) is installed in the through hole (411), and a secondary clamping mechanism (45) is arranged in the clamping block (42). A connecting block (5) is symmetrically arranged between the two rotating disks (41), the two connecting blocks (5) fixedly connect the two rotating disks (41), and the two connecting blocks (5) are both equipped with a multi-degree-of-freedom mechanical welding head (6); a first gear (46) is installed on the two rotating disks (41), and a power gear assembly (7) for driving the first gear (46) to rotate is installed on the mounting frame (2) on one side of the positioning ring (3); a limiting sleeve (8) for limiting the position of the mooring chain is arranged above the positioning ring (3), a cross-shaped through groove (81) is provided in the limiting sleeve (8), and two sets of upper and lower identical telescopic limiting mechanisms (9) for limiting the distance between chain links in the process of downward movement of the mooring chain are installed on the outer side wall of the limiting sleeve (8).

2. The mooring chain welding equipment according to claim 1, characterized in that: A groove (412) is provided in the middle of the outer side surfaces of the two rotating disks (41), and a positioning boss (31) for rotationally connecting to the groove (412) is provided inside the positioning ring (3).

3. The mooring chain welding equipment according to claim 2, characterized in that: The first telescopic cylinder (43) is symmetrically mounted in two opposite side walls of the through opening (411), the guide rod (44) is symmetrically mounted in the through opening (411), the two clamping blocks (42) are slidably mounted on the guide rod (44), and the end of the telescopic rod of the first telescopic cylinder (43) is connected to the clamping block (42).

4. The mooring chain welding equipment according to claim 3, characterized in that: The clamping block (42) is provided with a chain inlet (421), a clamping groove (422) is provided on one side of the chain inlet (421), the clamping groove (422) is provided with the secondary clamping mechanism (45), the secondary clamping mechanism (45) comprises a second telescopic cylinder (451) symmetrically mounted on two side surfaces of the clamping groove (422), and a clamping plate (452) is connected to the end of the telescopic rod of the second telescopic cylinder (451).

5. The mooring chain welding equipment according to claim 4, characterized in that: The power gear assembly (7) comprises a rotating shaft (71) rotatably mounted on the mounting frame (2), second gears (72) meshing with the first gear (46) being mounted at both ends of the rotating shaft (71), a third gear (73) being fixedly mounted on the rotating shaft (71) between the two second gears (72), a driving motor (74) being mounted on one side of the rotating shaft (71), and a fourth gear (75) meshing with the third gear (73) being mounted at the output end of the driving motor (74).

6. The mooring chain welding equipment according to claim 5, characterized in that: The positioning ring (3) is rotatably connected to the rotating disk (41) at the top and bottom, respectively; the first gear (46) is mounted on the top surface of the rotating disk (41) at the top, and the first gear (46) is mounted on the bottom surface of the rotating disk (41) at the bottom, and the second gear (72) is meshed with the two first gears (46) for transmission; an external plate (10) is connected to the top of the positioning ring (3), the rotating shaft (71) penetrates through and is rotatably mounted on the external plate (10), and the rotating shaft (71) is rotatably mounted on the external plate (10) and the mounting frame (2) via bearings.

7. The mooring chain welding equipment according to claim 6, characterized in that: The telescopic limit mechanism (9) is an upper telescopic limit mechanism (91) and a lower telescopic limit mechanism (92) that are identical; the telescopic limit mechanism (9) comprises a limit block (93) symmetrically and slidably mounted on the limit sleeve (8); one end of the limit block (93) is provided with an arc groove (931) that fits with the arc shoulder of a single chain link; a pressure sensor (94) is mounted in the arc groove (931); a third telescopic cylinder (95) is symmetrically mounted on the outer side wall of the limit sleeve (8); one end of the telescopic rod of the third telescopic cylinder (95) is connected to the limit block (93).

8. The mooring chain welding equipment according to claim 7, characterized in that: A mounting plate (32) is symmetrically connected to the top of the positioning ring (3), a connecting plate (11) is symmetrically mounted on the bottom outer wall of the limiting sleeve (8) by means of screws, and the connecting plate (11) is fixedly connected to the mounting plate (32) by means of screws.

9. The mooring chain welding equipment according to claim 8, characterized in that: The cross-shaped through groove (81) at the top of the limiting sleeve (8) is chamfered at its edges, and a funnel-shaped positioning tube (12) is installed at the top of the limiting sleeve (8); a plurality of observation ports (13) are provided on the outer side wall of the positioning ring (3).

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