Anchor chain production and processing unit and production process

Abstract

The present invention relates to the technical field of anchor chain production and processing, and specifically to an anchor chain production and processing unit and a production process, comprising: a base frame, a welding table, a side frame fixing plate, a connecting rod, a column, a welding column, a crossbeam, a hydraulic cylinder, a limit plate, an outer convex plate, a welding head, a clamping side plate and a bearing plate, wherein a side frame is arranged on the side of the welding table, and the bottom of the side frame is fixedly connected to the connecting rod by welding, and fixing plates are fixed at both ends of the connecting rod, and a column is fixed on the top of the welding table; the beneficial effect is: an anchor chain production and processing unit and a production process proposed by the present invention, wherein the welding table is stably supported by the arranged frame, fixing plate, connecting rod and side frame, and the use strength of the welding table is improved, and the protective plate can be lifted and lowered by the arranged frame, first support plate, linear bearing rod, threaded rod, rotating column, gear plate, bevel gear and driving motor, and the protective plate can be used to effectively avoid sparks flying during welding.

Description

Technical Field

[0001] The invention relates to the technical field of anchor chain production and processing, and in particular to an anchor chain production and processing unit and a production process. Background Art

[0002] The anchor chain is a steel chain connecting the hull and the anchor. The main functions of the anchor chain are to connect the anchor and the ship and transmit the anchor's holding force to the hull. When anchoring, because the thrown anchor chain has a certain weight, it can play a certain buffering role in the water for external forces such as wind flow exerted on the ship. The anchor chain lying flat on the bottom of the water keeps the force on the anchor horizontal, which is conducive to the anchor's reliable grip on the bottom.

[0003] In the prior art, when producing anchor chains, a chain link welding operation is performed, in which the chain link is moved to the welding platform of the welding machine by rotating the working arm, and the opening of the chain link is aligned and clamped by the upper and lower electrodes to complete the closing of the chain link.

[0004] However, the conventional welding table used for anchor chain welding operation has a single structure and lacks a protective mechanism. Sparks generated during welding operation will fly everywhere, causing harm to the operator, and in serious cases endangering the life of the operator. Therefore, the present invention proposes an anchor chain production and processing unit and a production process to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide an anchor chain production and processing machine unit and a production process to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anchor chain production and processing unit, the anchor chain production and processing unit comprising: a base frame, a welding table, a side frame fixing plate, a connecting rod, a column, a welding column, a crossbeam, a hydraulic cylinder, a limit plate, an outer convex plate, a welding head, a clamping side plate and a bearing plate, the side of the welding table is provided with a side frame, the bottom of the side frame is fixedly connected to the connecting rod by welding, the two ends of the connecting rod are fixed with a fixing plate, the upper part of the welding table is fixed with a column, the upper part of the column is provided with a welding column, a crossbeam and a hydraulic cylinder, and a chain conveyor is provided beside the base frame;

[0007] A stand, the stand is fixed to the surface of the base frame, a first support plate is arranged below the stand, a linear bearing rod is arranged on the first support plate and the stand, upper and lower ends of the linear bearing rod are provided with external threads, a nut is arranged on the external thread, a spring is sleeved on the linear bearing rod, and a second support plate and a threaded rod are arranged on the inner side of the stand;

[0008] A protective plate, wherein an observation window is provided in the middle of the protective plate, wherein a lens adapted to filter light is installed in the observation window, and a guide plate and a transmission plate are fixed to the inner surface of the anti-slip plate;

[0009] There are two groups of columns, which are symmetrically distributed about the central axis of the welding table. Welding columns are fixed on the tops of the two groups of columns by hexagonal bolts, and a crossbeam is fixed on the welding columns. A hydraulic cylinder is installed on the crossbeam, and the output end of the hydraulic cylinder passes through the crossbeam and is fixedly connected to the limit plate. An inner slide groove is opened on the inner side of the column, and the outer wall of the limit plate and the inner wall of the inner slide groove are slidably connected;

[0010] A limit plate, an outer convex plate is fixed on the surface of the limit plate, a welding head is arranged on the lower surface of the outer convex plate, clamping side plates are arranged on both sides of the outer convex plate, a clamping groove is arranged under the clamping side plates, a bearing plate is fixed on the surface of the welding table, the bearing plate is located directly under the outer convex plate, the bearing plate is used to prevent the anchor chain to be welded, the clamping head is used to perform welding operation on the anchor chain to be welded, and the clamping side plate is used to limit the anchor chain to be welded;

[0011] The second support plate is fixed to the surface of the base frame, the second support plate is located at the central axis of the base frame, the second support plate is provided with two groups, the two groups of second support plates are respectively located at the upper and lower sides of the base frame, the two groups of second support plates are rotatably connected with threaded rods, the bottom of the threaded rods is fixedly connected with a rotating column, the bottom of the rotating column is rotatably connected with the second base, the second base is disc-shaped, and the surface of the second base is provided with mounting holes, and the mounting holes are provided with a plurality of them, and the plurality of mounting holes are evenly distributed on the surface of the second base, and a toothed disc is fixed on the surface of the rotating column;

[0012] A toothed disc is meshed with a bevel gear, which is fixed to the end face of the output end of the drive motor. The drive motor is arranged on a motor seat, and the drive motor and the motor seat are located below the base frame. The top view of the protective plate is arc-shaped, and the concave part of the protective plate is directly opposite to the bearing plate. Two groups of guide plates are provided, and the two groups of guide plates are symmetrically distributed about the central axis of the protective plate. The guide plate and the linear bearing rod are slidably connected, and the transmission plate is located below the protective plate, and the transmission plate and the threaded rod are screwed.

[0013] Preferably, the side frames are provided with four groups, which are respectively located at the four ends of the left and right sides of the welding table, and the fixing plate is fixed to the surface of the base frame by hexagonal bolts, so that the welding table is set on the upper surface of the base frame, and a support column is fixed to the lower surface of the base frame, and the support column is columnar. The support column is provided with four groups, which are respectively located at the four ends of the lower surface of the base frame, and a first base is fixed to the bottom of the support column, and the first base is disc-shaped.

[0014] Preferably, the upright frames are provided with two groups, and the two groups of upright frames are symmetrically distributed about the central axis of the base frame. The first support plate is fixed to the surface of the base frame by welding. Two groups of springs are provided, and the two groups of springs are respectively located at the upper and lower ends of the linear bearing rod. A movable ring is fixed to one end of the spring, and the movable ring and the linear bearing rod are slidably connected. The other end of the spring at the upper end of the linear bearing rod is fixedly connected to the upright frame, and the other end of the spring at the lower end of the linear bearing rod is fixedly connected to the first support plate.

[0015] A production process of an anchor chain production and processing unit, comprising the following steps:

[0016] S1: The whole set of anchor chain production and processing unit includes six single machines, namely medium frequency heater, ring bending machine, welding machine, burr removal machine, gear squeezer and chain conveyor. The chain conveyor is located in the middle of the whole unit, with a circular turntable at the bottom. Four working arms extend from the top of the turntable in a "cross" shape. The working arm rotates 90° from the ring bending machine on the north side to the welding machine on the west side, then rotates 90° to the burr removal machine on the south side, and then rotates 90° to the gear squeezer on the east side. Each working arm has an active guide sprocket and an auxiliary guide sprocket. The chain runs from the outside of the working arm to the center and is finally stored on the circular turntable.

[0017] S2: After the new bar material passes through the medium frequency heater and the ring bending machine, it will be sent to this device for welding. The anchor chain to be welded is placed on the bearing plate. Then, the hydraulic cylinder is started. The output end of the hydraulic cylinder drives the limit plate to move downward along the inner slide groove, thereby driving the welding head on the outer convex plate to move downward;

[0018] S3: The welding machine moves to the anchor chain to be welded for welding, and the clamping side plate moves downward synchronously. The clamping grooves provided under the clamping side plate clamp and limit the two sides of the anchor chain to be welded to prevent the anchor chain to be welded from deflecting.

[0019] S4: Before starting the welding operation, turn on the drive motor. The output end of the drive motor drives the bevel gear to rotate, which in turn drives the toothed disc to rotate, thereby driving the rotation, and then drives the threaded rod to rotate. Since the threaded rod and the transmission plate are screwed, the protective plate is driven to move upward, and the guide plate slides on the linear bearing rod. The protective plate is used to protect the operator to avoid damage to the operator caused by flying sparks during welding, thereby improving work safety.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The present invention proposes an anchor chain production and processing machine unit and a production process, which realize stable support for the welding table by means of a frame, a fixing plate, a connecting rod and a side frame, thereby improving the use strength of the welding table. The protective plate can be raised and lowered by means of the vertical frame, the first supporting plate, the linear bearing rod, the threaded rod, the rotating column, the gear plate, the bevel gear and the driving motor. The protective plate can effectively avoid sparks flying during welding, thereby ensuring the safety of the operator. This avoids the problem that the traditional welding table used for anchor chain welding operations has a single structure and lacks a protective mechanism, and the sparks generated during welding operations will fly everywhere, causing harm to the operator, and in serious cases endangering the life of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a side view of the structure of the present invention;

[0024] Figure 3 It is a detailed diagram of the structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the protective plate of the present invention;

[0026] Figure 5 This is a schematic diagram of the toothed disc structure of the present invention;

[0027] Figure 6 for Figure 1 A magnified view of the structure at center;

[0028] Figure 7 for Figure 3 Enlarged view of the structure at point B in the middle.

[0029] In the figure: 1, hydraulic cylinder; 2, crossbeam; 3, column; 4, welding table; 5, fixed plate; 6, base frame; 7, support column; 8, first base; 9, second base; 10, protective plate; 11, observation window; 12, chain conveyor; 13, welding column; 14, side frame; 15, connecting rod; 16, frame; 17, first support plate; 18, linear bearing rod; 19, threaded rod; 20, second support plate; 21, rotating column; 22, nut; 23, guide plate; 24, transmission plate; 25, mounting hole; 26, toothed disc; 27, bevel gear; 28, driving motor; 29, motor seat; 30, inner slide groove; 31, limit plate; 32, outer convex plate; 33, welding head; 34, anchor chain to be welded; 35, bearing plate; 36, clamping side plate; 37, clamping groove; 38, external thread; 39, spring; 40, moving ring. DETAILED DESCRIPTION

[0030] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0031] In the description of the present invention, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] For the purpose of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are proposed to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, known methods and structures are not described in detail to avoid making these embodiments unnecessarily difficult to understand. In addition, all embodiments can be used in combination with each other.

[0034] Embodiment 1

[0035] See also Figures 1 to 7 The present invention provides a technical solution: an anchor chain production and processing unit, the anchor chain production and processing unit comprises: a base frame 6, a welding table 4, a side frame 14 fixing plate 5, a connecting rod 15, a column 3, a welding column 13, a cross beam 2, a hydraulic cylinder 1, a limit plate 31, an outer convex plate 32, a welding head 33, a clamping side plate 36 and a bearing plate 35, the side of the welding table 4 is provided with a side frame 14, the bottom of the side frame 14 is fixedly connected to the connecting rod 15 by welding, the two ends of the connecting rod 15 are fixed with a fixing plate 5, the upper part of the welding table 4 is fixed with a column 3, the upper part of the column 3 is provided with a welding column 13, a cross beam 2 and a hydraulic cylinder 1, and a chain conveyor 12 is provided beside the base frame 6;

[0036] A stand 16, the stand 16 is fixed to the surface of the base frame 6, a first support plate 17 is arranged below the stand 16, a linear bearing rod 18 is arranged on the first support plate 17 and the stand 16, an external thread 38 is provided at the upper and lower ends of the linear bearing rod 18, a nut 22 is provided on the external thread 38, a spring 39 is sleeved on the linear bearing rod 18, a second support plate 20 and a threaded rod 19 are arranged on the inner side of the stand 16, an observation window 11 is arranged in the middle of the protective plate 10, a lens adapted to filter light is installed in the observation window 11, a guide plate 23 and a transmission plate 24 are fixed to the inner surface of the anti-slip plate, a production process, including the above-mentioned anchor chain production and processing unit;

[0037] When in use, after the new bar material passes through the medium frequency heater and the ring bending machine, it will be sent to this device for welding operation, and the anchor chain 34 to be welded will be placed on the bearing plate 35. Then, the hydraulic cylinder 1 is started, and the output end of the hydraulic cylinder 1 drives the limit plate 31 to move downward along the inner slide groove 30, thereby driving the welding head 33 on the outer convex plate 32 to move downward, so that the welding head moves to the anchor chain 34 to be welded for welding operation. The welding table 4 is stably supported by the set stand, fixed plate 5, connecting rod 15 and side frame 14, thereby improving the use strength of the welding table 4. The observation window 11 is equipped with a lens that adapts to filtering, so that the operator can observe the actual welding situation and protect the operator at the same time.

[0038] Embodiment 2

[0039] On the basis of the first embodiment, clamping side plates 36 are provided on both sides of the outer convex plate 32, and clamping grooves 37 are provided below the clamping side plates 36. A bearing plate 35 is fixed on the surface of the welding table 4, and the bearing plate 35 is located directly below the outer convex plate 32. When in use: when the output end of the hydraulic cylinder 1 drives the outer convex plate 32 to move downward, the clamping side plates 36 move downward synchronously, and the clamping grooves 37 provided below the clamping side plates 36 clamp and limit the two sides of the anchor chain 34 to be welded, so as to avoid the displacement of the anchor chain 34 to be welded, and improve the stability of the welding operation;

[0040] The second support plate 20 is fixed to the surface of the base frame 6, and the second support plate 20 is located at the central axis of the base frame 6. The second support plate 20 is provided with two groups, and the two groups of second support plates 20 are respectively located at the upper and lower sides of the base frame 6. The two groups of second support plates 20 are rotatably connected with threaded rods 19, and the bottom of the threaded rods 19 is fixedly connected with a rotating column 21, and the bottom of the rotating column 21 is rotatably connected with the second base 9. The toothed disc 26 is meshed with a bevel gear 27, and the bevel gear 27 is fixed to the end face of the output end of the drive motor 28. The drive motor 28 is arranged on a motor seat 29, and the drive motor 28 and the motor seat 29 are located below the base frame 6. The transmission plate 24 is located below the protective plate 10, and the transmission plate 24 and the threaded rod 19 are screwed;

[0041] When in use, before starting the welding operation, by turning on the drive motor 28, the output end of the drive motor 28 drives the bevel gear 27 to rotate, and then drives the toothed disc 26 to rotate, thereby driving the rotation, and then drives the threaded rod 19 to rotate. Since the threaded rod 19 and the transmission plate 24 are screwed, the protective plate 10 is driven to move upward, and at the same time the guide plate 23 slides on the linear bearing rod 18, thereby using the protective plate 10 to protect the operator, avoiding sparks flying during welding to cause damage to the operator, thereby improving work safety.

[0042] Embodiment 3

[0043] On the basis of the second embodiment, the top view of the protective plate 10 is arc-shaped, the inner concave part of the protective plate 10 is directly opposite to the bearing plate 35, and two groups of guide plates 23 are provided. The two groups of guide plates 23 are symmetrically distributed about the central axis of the protective plate 10, and the guide plates 23 and the linear bearing rod 18 are slidably connected. When in use: while the protective plate 10 is moving, the guide plates 23 slide on the linear bearing rod 18 accordingly, thereby providing guidance and support for the movement of the protective plate 10. The top view of the protective plate 10 is arc-shaped, which can collect the sparks splashed during the welding process and reduce the scattering of the sparks;

[0044] There are two groups of springs 39, which are respectively located at the upper and lower ends of the linear bearing rod 18. A moving ring 40 is fixed to one end of the spring 39. The moving ring 40 and the linear bearing rod 18 are slidably connected. The other end of the spring 39 located at the upper end of the linear bearing rod 18 is fixedly connected to the stand 16, and the other end of the spring 39 located at the lower end of the linear bearing rod 18 is fixedly connected to the first support plate 17. When in use: while lifting and lowering the protective plate 10, the guide plate 23 will move correspondingly on the linear bearing rod 18. When the guide plate 23 presses against the moving ring 40, the spring 39 will be compressed by force, so that the spring 39 stores elastic potential energy, thereby absorbing possible vibration and displacement, thereby improving the stability of the protective plate 10;

[0045] The second base 9 is disc-shaped, and a mounting hole 25 is provided on the surface of the second base 9. There are a plurality of mounting holes 25, which are evenly distributed on the surface of the second base 9. When in use, the plurality of mounting holes 25 facilitate fixing the second base 9 to the ground, avoiding displacement when lifting the protective plate 10, and improving the stability of the operation.

[0046] Working principle: In actual use, after the new bar material passes through the medium frequency heater and the ring bending machine, it will be sent to this device for welding operation, and the anchor chain 34 to be welded is placed on the bearing plate 35, and then the hydraulic cylinder 1 is started. The output end of the hydraulic cylinder 1 drives the limit plate 31 to move downward along the inner slide groove 30, thereby driving the welding head 33 on the outer convex plate 32 to move downward, so that the welding is moved to the anchor chain 34 to be welded for welding operation. The set stand, fixed plate, connecting rod 15 and side frame 14 are used to achieve stable support for the welding table 4, improve the use strength of the welding table 4, and the observation window 11 is equipped with a lens that adapts to filtering, so that the operator can observe the actual welding situation and protect the operator at the same time. Before starting the welding operation, The drive motor 28 is started, and the output end of the drive motor 28 drives the bevel gear 27 to rotate, and then drives the toothed disc 26 to rotate, thereby driving the rotation, and then driving the threaded rod 19 to rotate. Since the threaded rod 19 and the transmission plate 24 are screwed, the protective plate 10 is driven to move up, and the guide plate 23 slides on the linear bearing rod 18. The protective plate 10 is used to protect the operator to avoid the sparks flying during the welding process from causing damage to the operator, thereby improving the safety of the work. In this way, the traditional welding table 4 used for anchor chain welding operations has a single structure and lacks a protective mechanism. The sparks generated during the welding operation will fly everywhere, causing damage to the operator, and even endangering the life of the operator in serious cases.

[0047] A production process of an anchor chain production and processing unit, comprising the following steps:

[0048] S1: The whole anchor chain production and processing unit includes six single machines, namely, a medium frequency heater, a ring bending machine, a welding machine, a burr removal machine, a gear squeezer and a chain conveyor 12. The chain conveyor 12 is located in the middle of the whole unit, with a circular turntable at the bottom. Four working arms extend from the top of the turntable in a "cross" shape. The working arm rotates 90° from the ring bending machine on the north side to the welding machine on the west side, then rotates 90° to the burr removal machine on the south side, and then rotates 90° to the gear squeezer on the east side. Each working arm has an active guide sprocket and an auxiliary guide sprocket. The chain runs from the outside of the working arm to the center and is finally stored on the circular turntable.

[0049] S2: After the new bar material passes through the medium frequency heater and the ring bending machine, it will be sent to the device for welding operation. The anchor chain 34 to be welded is placed on the bearing plate 35. Then, the hydraulic cylinder 1 is started. The output end of the hydraulic cylinder 1 drives the limit plate 31 to move downward along the inner slide groove 30, thereby driving the welding head 33 on the outer convex plate 32 to move downward;

[0050] S3: The welding machine moves to the anchor chain 34 to be welded for welding, and the clamping side plate 36 moves downward synchronously. The clamping groove 37 provided below the clamping side plate 36 clamps and limits the two sides of the anchor chain 34 to be welded, so as to prevent the anchor chain 34 to be welded from deflecting.

[0051] S4: Before starting the welding operation, the drive motor 28 is turned on. The output end of the drive motor 28 drives the bevel gear 27 to rotate, and then drives the toothed disc 26 to rotate, thereby driving the rotation, and then drives the threaded rod 19 to rotate. Since the threaded rod 19 and the transmission plate 24 are screwed, the protective plate 10 is driven to move upward, and the guide plate 23 slides on the linear bearing rod 18. The protective plate 10 is used to protect the operator to avoid damage to the operator caused by flying sparks during welding, thereby improving work safety.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anchor chain production and processing unit, characterized by: The anchor chain production and processing unit comprises: a base frame (6), a welding platform (4), a side frame (14), a fixing plate (5), a connecting rod (15), a column (3), a welding column (13), a cross beam (2), a hydraulic cylinder (1), a limit plate (31), an outer convex plate (32), a welding head (33), a clamping side plate (36) and a bearing plate (35); a side frame (14) is arranged on the side of the welding platform (4); the bottom of the side frame (14) is fixedly connected to the connecting rod (15) by welding; the fixing plates (5) are fixed at both ends of the connecting rod (15); a column (3) is fixed above the welding platform (4); a welding column (13), a cross beam (2) and a hydraulic cylinder (1) are arranged above the column (3); and a chain conveyor (12) is arranged next to the base frame (6); A stand (16), the stand (16) is fixed to the surface of the base frame (6), a first support plate (17) is arranged below the stand (16), a linear bearing rod (18) is arranged on the first support plate (17) and the stand (16), an external thread (38) is provided at the upper and lower ends of the linear bearing rod (18), a nut (22) is arranged on the external thread (38), a spring (39) is sleeved on the linear bearing rod (18), and a second support plate (20) and a threaded rod (19) are arranged on the inner side of the stand (16); A protective plate (10), wherein an observation window (11) is provided in the middle of the protective plate (10), a lens adapted to filter light is installed in the observation window (11), and a guide plate (23) and a transmission plate (24) are fixed to the inner surface of the anti-slip plate; The columns (3) are provided with two groups, and the two groups of columns (3) are symmetrically distributed about the central axis of the welding platform (4). The upper parts of the two groups of columns (3) are fixed with welding columns (13) by hexagonal bolts, and the welding columns (13) are fixed with cross beams (2). A hydraulic cylinder (1) is installed above the cross beam (2), and the output end of the hydraulic cylinder (1) passes through the cross beam (2) and is fixedly connected to the limit plate (31). An inner slide groove (30) is provided on the inner side of the column (3), and the outer wall of the limit plate (31) and the inner wall of the inner slide groove (30) are slidably connected; A limiting plate (31), an outer convex plate (32) is fixed on the surface of the limiting plate (31), a welding head (33) is arranged on the lower surface of the outer convex plate (32), clamping side plates (36) are arranged on both sides of the outer convex plate (32), a clamping groove (37) is opened below the clamping side plates (36), a bearing plate (35) is fixed on the surface of the welding platform (4), the bearing plate (35) is located directly below the outer convex plate (32), an anchor chain (34) to be welded is prevented from being placed on the bearing plate (35), the clamping head is used for welding the anchor chain (34) to be welded, and the clamping side plates (36) are used for limiting the position of the anchor chain (34) to be welded; A second support plate (20), the second support plate (20) is fixed to the surface of the base frame (6), the second support plate (20) is located at the central axis of the base frame (6), two groups of second support plates (20) are provided, the two groups of second support plates (20) are respectively located at the upper and lower sides of the base frame (6), the two groups of second support plates (20) are rotatably connected with threaded rods (19), the bottom of the threaded rods (19) is fixedly connected with a rotating column (21), the bottom of the rotating column (21) is rotatably connected with a second base (9), the second base (9) is in a disc shape, a mounting hole (25) is opened on the surface of the second base (9), a plurality of mounting holes (25) are provided, and the plurality of mounting holes (25) are evenly distributed on the surface of the second base (9), and a toothed disc (26) is fixed on the surface of the rotating column (21); A toothed disc (26) is meshedly connected with a bevel gear (27), the bevel gear (27) is fixed to the end face of the output end of a driving motor (28), the driving motor (28) is arranged on a motor seat (29), the driving motor (28) and the motor seat (29) are located below the base frame (6), the top view of the protective plate (10) is arc-shaped, the inner concave part of the protective plate (10) is directly opposite to the bearing plate (35), the guide plate (23) is provided with two groups, the two groups of guide plates (23) are symmetrically distributed about the central axis of the protective plate (10), the guide plate (23) and the linear bearing rod (18) are slidably connected, the transmission plate (24) is located below the protective plate (10), and the transmission plate (24) and the threaded rod (19) are screwed.

2. The anchor chain production and processing unit according to claim 1, characterized in that: The side frames (14) are provided with four groups, and the four groups of side frames (14) are respectively located at the four ends of the left and right sides of the welding platform (4). The fixing plate (5) is fixed to the surface of the base frame (6) by means of hexagonal bolts, so that the welding platform (4) is arranged on the upper surface of the base frame (6). A support column (7) is fixed to the lower surface of the base frame (6), and the support column (7) is columnar. The support column (7) is provided with four groups, and the four groups of support columns (7) are respectively located at the four ends of the lower surface of the base frame (6). A first base (8) is fixed to the bottom of the support column (7), and the first base (8) is disc-shaped.

3. The anchor chain production and processing unit according to claim 1, characterized in that: The stand (16) is provided with two groups, and the two groups of stand (16) are symmetrically distributed about the central axis of the base frame (6). The first support plate (17) is fixed to the surface of the base frame (6) by welding. The spring (39) is provided with two groups, and the two groups of springs (39) are respectively located at the upper and lower ends of the linear bearing rod (18). A moving ring (40) is fixed to one end of the spring (39), and the moving ring (40) and the linear bearing rod (18) are slidably connected. The other end of the spring (39) located at the upper end of the linear bearing rod (18) is fixedly connected to the stand (16), and the other end of the spring (39) located at the lower end of the linear bearing rod (18) is fixedly connected to the first support plate (17).

4. The production process of the anchor chain production and processing unit according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1: The whole anchor chain production and processing unit includes six single machines, namely, a medium frequency heater, a ring bending machine, a welding machine, a burr removal machine, a gear squeezer and a chain conveyor (12), wherein the chain conveyor (12) is located in the middle of the whole unit, with a circular turntable at the bottom, and four working arms extending from the position above the turntable, forming a "cross" shape. The working arms rotate 90 degrees from the ring bending machine on the north side to the welding machine on the west side, and then rotate 90 degrees to the burr removal machine on the south side, and then rotate 90 degrees to the gear squeezer on the east side. Each working arm has an active guide sprocket and an auxiliary guide sprocket. The chain runs from the outer side of the working arm to the center and is finally stored on the circular turntable; S2: After the new bar material passes through the medium frequency heater and the ring bending machine, it will be sent to the device for welding operation. The anchor chain (34) to be welded is placed on the bearing plate (35). Then, the hydraulic cylinder (1) is started. The output end of the hydraulic cylinder (1) drives the limit plate (31) to move downward along the inner slide groove (30), thereby driving the welding head (33) on the outer convex plate (32) to move downward; S3: The welding part is moved to the anchor chain (34) to be welded for welding, and the clamping side plate (36) is simultaneously moved downward, and the clamping groove (37) provided below the clamping side plate (36) clamps and limits the two sides of the anchor chain (34) to be welded, so as to prevent the anchor chain (34) to be welded from being offset; S4: Before starting the welding operation, the drive motor (28) is turned on, and the output end of the drive motor (28) drives the bevel gear (27) to rotate, thereby driving the toothed disc (26) to rotate, thereby driving the rotation, and then driving the threaded rod (19) to rotate. Since the threaded rod (19) and the transmission plate (24) are screwed, the protective plate (10) is driven to move upward, and at the same time the guide plate (23) slides on the linear bearing rod (18), thereby using the protective plate (10) to protect the operator, avoiding sparks flying during the welding process from causing damage to the operator, thereby improving the safety of the work.

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