An automatic electric arc welding device for safety rigging fittings

Abstract

The application discloses a kind of automatic electric arc welding devices of safety rigging fittings, more specifically relates to safety rigging fittings processing field, including box, the upper end of the box is connected with workbench, the upper end of the workbench is connected with frame, the upper end of the workbench is connected with welding equipment one side, the upper end of the box one side is connected with moving assembly, the upper end of the moving assembly is connected with welding support plate, the upper end of the frame inner wall is connected with connecting slide rail, the lower end of the connecting slide rail both sides is evenly slidably connected with electric control sliding block, the lower end of two The electric control sliding block is connected with workpiece positioning mechanism Workpiece positioning mechanism includes cylinder and retractor mechanism, the application realizes the mechanical cooperative control of accurate positioning and stable compression in multilayer steel plate welding process, effectively solves the problem of interlayer misplacement and welding deformation, significantly improves welding quality and production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of safety rigging accessory processing, more particularly, the present application relates to a safety rigging accessory automatic electric arc welding device. BACKGROUND

[0002] In the modern industrial field, safety rigging accessories are key components to ensure the safe and stable operation of various hoisting and towing operations. Steel plate hooks are widely used in construction, port loading and unloading, mining and other scenes due to their good load-bearing capacity and reliability. The steel plate hook is usually made by stamping multiple layers of steel plates and then stacking and welding them. Specifically, the steel plates are first stamped into specific hook body components according to design requirements, and then the multiple layers of stamped steel plates are stacked and assembled to prepare for subsequent welding procedures.

[0003] In the current welding process of steel plate hooks, the traditional process usually directly stacks multiple layers of stamped steel plates on a welding table, and then relies on manual adjustment of the position of each layer of steel plates to ensure welding accuracy. This method is not only inefficient and difficult to meet the needs of large-scale production, but also has large errors in manual operation, making it difficult to ensure accurate alignment of each layer of steel plates, which can lead to misalignment, uneven gaps and other problems in the welding area. These problems can seriously affect the welding quality and reduce the overall strength and stability of the steel plate hook, thereby creating safety hazards for the use of safety rigging. SUMMARY

[0004] To overcome the above-mentioned defects of the prior art, the embodiments of the present application provide a safety rigging accessory automatic electric arc welding device, which ensures accurate alignment of multiple layers of workpieces by setting a workpiece positioning mechanism to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] The utility model provides an automatic electric arc welding device for safety rigging fittings, including the box, the upper end of box is connected with the workstation, the upper end of workstation is connected with the frame, one side of the upper end of workstation is connected with the welding equipment, one side upper portion of box is connected with moving assembly, the upper end of moving assembly is connected with the welding support plate, the inner wall upper end of frame is connected with the connecting slide rail, the lower end of both sides of connecting slide rail is evenly connected with the electric control sliding block, the lower end of two electric control sliding blocks is connected with workpiece positioning mechanism, workpiece positioning mechanism includes cylinder and retractable mechanism, the lower end of cylinder is connected with moving plate, the upper end of cylinder is connected with the lower end of electric control sliding block, the lower end of moving plate is evenly connected with the electromagnetic block, the both sides of moving plate of one workpiece positioning mechanism are connected with the connecting plate, the shape of one side of connecting plate is half arc structure, the lower end of connecting plate is evenly rotatably connected with the guide roller, the shape of a plurality of guide rollers is arc structure, workpiece positioning mechanism can stack a plurality of workpieces on the upper side of welding support plate, one side of the middle part of workstation is connected with the pressing mechanism, and the pressing mechanism can press the workpiece stacked in multiple layers.

[0007] Preferably, the moving assembly includes a lead screw, one end of the lead screw extends through to one side of the box, a moving motor is connected to the one end of the lead screw on the side of the box, the output end of the moving motor is connected to the one end of the lead screw, a slide rod is connected to the side of the box corresponding to the lead screw, guide blocks are slidably connected to the outer walls of the lead screw and the slide rod, a moving frame is connected between the two guide blocks, a drive motor is connected to the inner wall of the moving frame at the lower middle part, and a housing extends through the output end of the drive motor to the upper end of the moving frame.

[0008] Preferably, a hydraulic cylinder is connected to the inner wall of the housing at the lower middle part, the hydraulic cylinder extends through to the upper end of the housing, the upper end of the hydraulic cylinder is connected to the lower middle part of the welding support plate, a sliding groove is formed in the upper end of the box and the upper end of the workstation corresponding to the housing, and the housing is slidably connected inside the sliding groove.

[0009] Preferably, the retractable mechanism includes a connecting motor, the output end of the connecting motor extends through to the lower end of the cylinder, the output end of the connecting motor is connected to a first bevel gear, a plurality of connecting blocks are connected to the lower end of the cylinder, the number of connecting blocks is four, and a plurality of winding rollers are rotatably connected to the middle part of one side of the connecting blocks.

[0010] Preferably, a plurality of winding ropes are wound around the middle part of the outer wall of the winding rollers, the lower ends of the winding ropes are connected to the lower end of the moving plate, a second bevel gear is connected to one side of the outer wall of the winding roller, and the upper ends of a plurality of second bevel gears are connected to the lower ends of the first bevel gears in a circumferential meshing manner.

[0011] Preferably, the pressing mechanism comprises a moving slide rail, one side of the moving slide rail is slidably connected with a moving block, the upper end of the moving block is connected with a connecting frame in the middle, the inner wall of the connecting frame is connected with a first air cylinder in the lower middle, the upper end of the first air cylinder is connected with a box body, and the box body extends through one end to one side of the connecting frame.

[0012] Preferably, the inside of the box body is connected with a second air cylinder in the middle of one side, the second air cylinder extends through one end to one side of the box body, one end of the second air cylinder is connected with a stabilizing block, the upper part of one side of the box body is rotatably connected with a first stabilizing rod, one end of the first stabilizing rod is connected with a second stabilizing rod, both ends of the second stabilizing rod are connected with rotating blocks, and the lower ends of the two rotating blocks are connected with the upper end of the stabilizing block.

[0013] Preferably, the lower end of the stabilizing block is rotatably connected with a connecting shell, the inner wall of the connecting shell is connected with a double-shaft motor in the lower part of both sides, the double-shaft motor extends through both ends to both sides of the connecting shell, the upper part of both sides of the connecting shell is rotatably connected with an adjusting rod, the lower end of the adjusting rod is connected with a pressing block, the middle of one side of the adjusting rod is rotatably connected with a rotating seat, and one end of the rotating seat is connected with both ends of the double-shaft motor.

[0014] Preferably, the middle of both sides of the frame body is provided with an opening, and the inner wall of the opening is connected with a conveying belt on both sides.

[0015] The technical effects and advantages of the present application are as follows:

[0016] 1. The workpiece positioning mechanism is driven by a motor and a gear transmission system, realizes layer-by-layer grabbing and precise positioning of multiple steel plates, is provided with an adjustable guide device and a limiting mechanism, can ensure that each layer of steel plate maintains consistent position during stacking, effectively solves the misalignment problem that easily occurs during traditional manual stacking, and provides flat and reliable steel plate combination for subsequent welding procedures.

[0017] 2. The pressing mechanism adopts a mechanical structure design of multiple connecting rods cooperating with air cylinder driving, converts linear motion of the air cylinder into stable pressing force, ensures uniform and reliable pressure transmission, and through an adjustable pressing block and a regional pressure adjusting mechanism, can manually adjust the pressing force of each region through a mechanical adjusting device according to the needs of different welding positions. This structure not only ensures the overall stability of the multiple steel plates during welding, but also can appropriately control the pressure of the joint area, effectively avoiding the welding deformation problem caused by excessive pressure.

[0018] 3、Workpiece positioning mechanism and pressing mechanism work together through mechanical linkage device to form a complete welding auxiliary system, the positioning mechanism first accurately positions the multi-layer steel plate layer by layer, and the pressing mechanism then applies appropriate pressure to the steel plate combination, and the two realize accurate cooperation of action through the transmission device, effectively solving the common problems of interlayer misplacement and welding deformation in traditional welding, making the welding joint of multi-layer steel plate more uniform and firm, and significantly improving the welding quality and production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the device;

[0020] Figure 2 It is a sectional view of the pressing mechanism;

[0021] Figure 3 It is a sectional view of the device as a whole;

[0022] Figure 4 It is a sectional view of the local structure of the second bevel gear;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the workpiece positioning mechanism;

[0024] Figure 6 It is a schematic diagram of the mounting structure of the guide roller;

[0025] Figure 7 It is a sectional view of the workpiece positioning mechanism;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the pressing assembly;

[0027] Figure 9 It is a schematic diagram of the mounting structure of the double-shaft motor.

[0028] The reference signs are: 1, box; 2, workbench; 3, frame; 4, welding equipment; 5, lead screw; 6, moving frame; 7, drive motor; 8, housing; 9, hydraulic cylinder; 10, welding support plate; 11, opening; 12, conveying belt; 13, connecting slide rail; 14, electric control sliding block; 15, cylinder; 16, connecting motor; 17, first bevel gear; 18, connecting block; 19, winding roller; 20, winding rope; 21, second bevel gear; 22, moving plate; 23, electromagnetic block; 24, connecting plate; 25, guide roller; 26, moving slide rail; 27, moving block; 28, connecting frame; 29, first air cylinder; 30, box body; 31, second air cylinder; 32, stabilizing block; 33, connecting shell; 34, double-shaft motor; 35, adjusting rod; 36, pressing block; 37, first stabilizing rod; 38, second stabilizing rod; 39, rotating block. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of the present application.

[0030] Referring to the drawings in the description Figures 1-9 As shown in the drawings, the automatic electric arc welding device for a safety rigging accessory in the embodiments of the present application comprises a box body 1, a workbench 2 connected to the upper end of the box body 1, a frame body 3 connected to the upper end of the workbench 2, a welding device 4 connected to one side of the upper end of the workbench 2, a moving assembly connected to one side of the upper part of the box body 1, a welding supporting plate 10 connected to the upper end of the moving assembly, openings 11 formed in the middle of the two sides of the frame body 3, conveying belts 12 connected to the inner walls of the two openings 11, a connecting sliding rail 13 connected to the upper end of the inner wall of the frame body 3, electric control sliding blocks 14 uniformly and slidingly connected to the lower ends of the two connecting sliding rails 13, and workpiece positioning mechanisms connected to the lower ends of the two electric control sliding blocks 14.

[0031] The frame body 3 is convenient to disassemble and maintain, and simultaneously plays a role in protection and safety isolation. The welding device 4 is a six-axis electric arc welding robot, which adopts a six-axis linkage structure and is equipped with an intelligent welding control system, so as to realize automatic switching of multiple electric arc welding processes. The two conveying belts 12 can form a complete material conveying channel, which is convenient for workpiece feeding and discharging.

[0032] As shown in the drawings Figure 2 And Figure 3 As shown in the drawings, the moving assembly comprises a lead screw 5, the lead screw 5 extends through one end to one side of the box body 1, a moving motor is connected to the one end of the box body 1 corresponding to the one end of the lead screw 5, the output end of the moving motor is connected to the one end of the lead screw 5, a sliding rod is connected to the inner wall of the box body 1 corresponding to the one side of the lead screw 5, guide blocks are slidingly connected to the outer walls of the lead screw 5 and the sliding rod, a moving frame 6 is connected between the two guide blocks, a drive motor 7 is connected to the inner wall of the moving frame 6 at the lower end of the middle part, a housing 8 extends through the output end of the drive motor 7 to the upper end of the moving frame 6, a hydraulic cylinder 9 is connected to the inner wall of the housing 8 at the lower end of the middle part, the hydraulic cylinder 9 extends through the upper end of the housing 8 to the upper end of the housing 8, the upper end of the hydraulic cylinder 9 is connected to the lower end of the middle part of the welding supporting plate 10, a sliding groove is formed in the box body 1 at the upper end of the workbench 2 corresponding to the housing 8, and the housing 8 is slidingly connected inside the sliding groove.

[0033] The driving motor 7 can steplessly adjust the rotating speed according to the welding process requirements, the hydraulic cylinder 9 is provided with a pressure sensor and a displacement sensor, precise lifting control of the welding support plate 10 is realized, the slide groove is arranged at the upper end of the box body 1 and the upper end of the workbench 2, which can ensure the stability and guiding accuracy during movement, the workpiece scanning positioning system is connected above the welding support plate 10, the positions of the multiple steel plate hooks placed can be determined, when the steel plate hook is moved to above the welding support plate 10 by the workpiece positioning mechanism, the position of the steel plate hook is positioned by the workpiece scanning positioning system, then the angle position of the welding support plate 10 is adjusted by the driving motor 7, so that the positions of the two steel plate hooks are coincided.

[0034] As shown in Figures 4-7 The workpiece positioning mechanism includes a cylinder 15 and a retracting mechanism, the cylinder 15 is connected with a moving plate 22 below, the upper end of the cylinder 15 is connected with the lower end of the electric control sliding block 14, the lower end of the moving plate 22 is uniformly connected with an electromagnetic block 23, the moving plate 22 of one of the workpiece positioning mechanisms is connected with a connecting plate 24 on both sides, one side of the connecting plate 24 is in a semicircular structure, the lower end of the connecting plate 24 is uniformly connected with a guide roller 25 on one side, the guide rollers 25 are in an arc structure, the workpiece positioning mechanism can stack multiple workpieces on the welding support plate 10 in turn, the workbench 2 is connected with a pressing mechanism in the middle on one side, the pressing mechanism can press the multiple stacked workpieces, the retracting mechanism includes a connecting motor 16, the output end of the connecting motor 16 extends to the lower end of the cylinder 15, the output end of the connecting motor 16 is connected with a first bevel gear 17, the lower end of the cylinder 15 is connected with a connecting block 18 in the circumference, the number of the connecting blocks 18 is four groups, a plurality of connecting blocks 18 are rotatably connected with a winding roller 19 in the middle on one side, a plurality of winding ropes 20 are wound and connected to the outer wall of the winding roller 19 in the middle, the lower end of the winding rope 20 is connected with the lower end of the moving plate 22, the outer wall of the winding roller 19 is connected with a second bevel gear 21 on one side, the upper end of the second bevel gear 21 is connected with the lower end of the first bevel gear 17 in the circumference;

[0035] The upper end of the cylinder 15 is connected with the lower end of the electric control sliding block 14 through a flange, which ensures the connection rigidity and positioning accuracy, the upper end of the moving plate 22 is connected with a power module, which accurately controls the on-off of the electromagnetic block 23, the guide roller 25 can ensure the stability of the contact with the edge of the welding support plate 10, the retracting mechanism can realize the precise length control of the multiple winding ropes 20;

[0036] The workpiece positioning mechanism realizes accurate positioning through a bevel gear transmission system. The first bevel gear 17 is driven to rotate by the connecting motor 16. Through meshing with the four second bevel gears 21 arranged circumferentially, the four winding rollers 19 are synchronously driven to rotate. This symmetrical transmission design ensures the stability of the moving plate 22 during lifting and avoids the deflection problem caused by unilateral stress. Meanwhile, the arc-shaped connecting plate 24 and the guide roller 25 form a passive centering mechanism. When the moving plate 22 descends, the guide roller 25 contacts the edge of the welded support plate 10 to generate a self-correcting force, which automatically adjusts the workpiece to the preset position.

[0037] As shown in Figure 8 With Figure 9 The pressing mechanism includes a moving slide rail 26. The moving slide rail 26 is connected with a moving block 27 on one side. The moving block 27 is connected with a connecting frame 28 at the upper middle part. The connecting frame 28 is connected with a first air cylinder 29 at the lower middle part of the inner wall. The first air cylinder 29 is connected with a box body 30 at the upper end. The box body 30 extends through one end to one side of the connecting frame 28. The box body 30 is connected with a second air cylinder 31 at the inner side of the middle part. The second air cylinder 31 extends through one end to one side of the box body 30. The second air cylinder 31 is connected with a stabilizing block 32 at one end. The box body 30 is rotatably connected with a first stabilizing rod 37 at the upper part of one side. The first stabilizing rod 37 is connected with a second stabilizing rod 38 at one end. The second stabilizing rod 38 is connected with a rotating block 39 at both ends. The two rotating blocks 39 are connected with the upper end of the stabilizing block 32 at the lower end. The stabilizing block 32 is rotatably connected with a connecting shell 33 at the lower end. The connecting shell 33 is connected with a double-shaft motor 34 at the lower part of both sides of the inner wall. The double-shaft motor 34 extends through both ends to both sides of the connecting shell 33. The connecting shell 33 is rotatably connected with an adjusting rod 35 at the upper part of both sides. The adjusting rod 35 is connected with a pressing block 36 at the lower end. The two adjusting rods 35 are rotatably connected with rotating seats at the middle part of one side. The two rotating seats are connected with the double-shaft motor 34 at both ends.

[0038] The moving slide rail 26 is an electric control slide rail. The moving block 27 is located on the outer wall of the moving slide rail 26 and quickly moves the pressing block 36 above the welding station. The double-shaft motor 34 can control the position of the pressing block 36. The first air cylinder 29 drives the box body 30 to descend. The second air cylinder 31 pushes the stabilizing block 32 to move horizontally. Through the double-linkage constraint structure of the first stabilizing rod 37 and the second stabilizing rod 38, the motion stability of the stabilizing block 32 is effectively improved, ensuring that the stabilizing block 32 maintains accurate axial positioning and reliable lateral rigidity during welding.

[0039] Working principle: when in use, the steel plate hook workpiece to be welded is conveyed to the inside of the frame body 3 through the left conveying belt 12. The left workpiece positioning mechanism is started. The first bevel gear 17 is driven to rotate by the connecting motor 16. Through meshing with the second bevel gear 21, the winding roller 19 is driven to rotate to release the winding rope 20, so that the moving plate 22 descends to the appropriate position. At this time, the electromagnetic block 23 is electrified, firmly adsorbing the completed steel plate hook workpiece.

[0040] After the adsorption is completed, the winding roller 19 starts to reverse rotation, and the winding rope 20 is uniformly and stably wound, and the moving plate 22 and the workpiece adsorbed thereon are driven to stably rise by the traction of the winding rope 20. At the same time, the electric control sliding block 14 slides accurately on the connecting sliding rail 13 according to the preset program, and the whole workpiece positioning mechanism is transferred to the direction of the welding support plate 10;

[0041] When the workpiece positioning mechanism moves to the appropriate position above the welding support plate 10, the workpiece scanning positioning system connected above the welding support plate 10 starts to work to scan and position the surface of the welding support plate 10. At this time, the semi-arc connecting plates 24 connected on both sides of the moving plate 22 drive the guide rollers 25 to gradually approach the welding support plate 10, and the guide rollers 25 form a guide constraint with the edge of the welding support plate 10 to fine-tune the position of the workpiece. The workpiece scanning positioning system monitors the position information of the steel plate hook in real time, and the driving motor 7 can drive the welding support plate 10 to rotate according to the welding process requirements to accurately adjust the angular position and ensure that the steel plate hook moved above is completely overlapped with the position of the steel plate hook placed on the welding support plate 10;

[0042] Then, the winding roller 19 rotates again to appropriately release the winding rope 20, so that the moving plate 22 slowly descends until the steel plate is stably and accurately placed on the welding support plate 10 above. Then, the workpiece positioning mechanism moves to the conveying belt 12 again to prepare to adsorb the next steel plate hook workpiece;

[0043] When the adsorption and conveying of the second steel plate hook workpiece is carried out, the workpiece positioning mechanism moves to directly above the welding support plate 10, the winding and releasing assembly controls the winding roller 19 to slowly lower the moving plate 22, and the guide rollers 25 on both sides again fit the sides of the welding support plate 10 to play a guiding and positioning role. At this time, the driving motor 7 drives the welding support plate 10 to rotate to adjust the position of the steel plate hook placed above, so that the steel plate hook above the welding support plate 10 is in a parallel state with the steel plate hook to be placed below the positioning mechanism. Then, the winding and releasing assembly continues to lower to accurately stack the new steel plate hook above the steel plate hook that has been placed, and the process is repeated to sequentially stack multiple steel plate hooks. The whole stacking process does not need manual intervention and the positioning is accurate;

[0044] After the steel plate hooks are stacked, the moving block 27 slides on the moving slide rail 26 to move the pressing mechanism above the welding support plate 10, the first cylinder 29 is adjusted to extend to make the box body 30 descend, the second cylinder 31 is controlled to push the stabilizing block 32 to move, the first stabilizing rod 37, the second stabilizing rod 38 and the rotating block 39 are linked to make the stabilizing block 32 reach the designated position stably, the double-shaft motor 34 is started to drive the adjusting rod 35 to rotate, and the pressing block 36 is accurately lowered above the steel plate hooks to press the stacked steel plate hooks, since the connecting shell 33 and the stabilizing block 32 are rotationally connected, even if the welding support plate 10 drives the steel plate hooks to rotate, the pressing block 36 will not interfere with the steel plate hooks, so that the welding work is carried out smoothly, and compared with manual pressing, the device can provide more stable and uniform pressure.

[0045] Finally, the welding device 4 is started to automatically electric arc weld the pressed steel plate hooks, the pressing mechanism is released, the workpiece positioning mechanism on the right side is started, the connecting motor 16 drives the first bevel gear 17 to rotate, the second bevel gear 21 is engaged to drive the winding roller 19 to rotate to release the winding rope 20, the moving plate 22 is lowered above the welding support plate 10, the electromagnetic block 23 is electrified to adsorb the welded steel plate hook workpiece, then the winding roller 19 reversely rotates to wind the winding rope 20, the moving plate 22 and the workpiece are lifted, the electric control sliding block 14 slides on the connecting slide rail 13 to move the right side workpiece positioning mechanism above the right side conveying belt 12, the winding roller 19 rotates to release the winding rope 20, and the welded steel plate hooks are stably placed on the right side conveying belt 12, and the conveying belt 12 conveys the finished product to the subsequent process.

[0046] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0047] Secondly: the present application discloses the structure involved in the embodiment of the present application, and other structures can refer to the usual design, and the same embodiment and different embodiments of the present application can be combined with each other under the condition of no conflict;

[0048] Finally: the above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. An automatic electric arc welding device for safety rigging fittings, comprising a box (1), characterized in that: The upper end of the box body (1) is connected with a workbench (2), the upper end of the workbench (2) is connected with a frame body (3), one side of the upper end of the workbench (2) is connected with a welding device (4), one side of the upper part of the box body (1) is connected with a moving assembly, the upper end of the moving assembly is connected with a welding support plate (10), the inner wall of the upper end of the frame body (3) is connected with a connecting slide rail (13), the lower end of the connecting slide rail (13) is evenly and slidably connected with an electric control sliding block (14), the lower end of the two electric control sliding blocks (14) is connected with a workpiece positioning mechanism, the workpiece positioning mechanism comprises a cylinder (15) and a retracting mechanism, the lower end of the cylinder (15) is connected with a moving plate (22), the upper end of the cylinder (15) is connected with the lower end of the electric control sliding block (14), the lower end of the moving plate (22) is evenly connected with an electromagnetic block (23), the moving plate (22) of one of the workpiece positioning mechanisms is connected with a connecting plate (24) on both sides, one side of the connecting plate (24) is in a semicircular structure, the lower end of the connecting plate (24) is evenly rotatably connected with a guide roller (25), and a plurality of guide rollers (25) are arranged in an arc structure; The workpiece positioning mechanism can stack multiple layers of workpieces on the welding support plate (10) in turn; One side of the middle part of the workbench (2) is connected with a pressing mechanism; The pressing mechanism can press the multiple layers of stacked workpieces, and the pressing mechanism comprises a moving slide rail (26), one side of the moving slide rail (26) is slidably connected with a moving block (27), the upper end of the moving block (27) is connected with a connecting frame (28), the inner wall of the lower end of the connecting frame (28) is connected with a first air cylinder (29), the upper end of the first air cylinder (29) is connected with a box body (30), one end of the box body (30) extends through to one side of the connecting frame (28), one side of the inner part of the box body (30) is connected with a second air cylinder (31), one end of the second air cylinder (31) extends through to one side of the box body (30), one end of the second air cylinder (31) is connected with a stabilizing block (32), one side of the upper part of the box body (30) is rotatably connected with a first stabilizing rod (37), one end of the first stabilizing rod (37) is connected with a second stabilizing rod (38), both ends of the second stabilizing rod (38) are connected with a rotating block (39), the lower end of the rotating block (39) is connected with the upper end of the stabilizing block (32), the lower end of the stabilizing block (32) is rotatably connected with a connecting shell (33), the inner wall of both sides of the lower part of the connecting shell (33) is connected with a double-shaft motor (34), both ends of the double-shaft motor (34) extend through to both sides of the connecting shell (33), both sides of the upper part of the connecting shell (33) are rotatably connected with an adjusting rod (35), the lower end of the adjusting rod (35) is connected with a lower pressing block (36), one side of both the adjusting rods (35) is rotatably connected with a rotating seat, and both ends of the double-shaft motor (34) are respectively connected with the rotating seat.

2. An apparatus for automatic electric arc welding of a safety rigging fitting according to claim 1, characterized in that: The moving assembly includes a lead screw (5), one end of the lead screw (5) extends through to one side of the box (1), one side of the box (1) is connected with a moving motor corresponding to one end of the lead screw (5), the output end of the moving motor is connected with one end of the lead screw (5), the inner wall of the box (1) is connected with a sliding rod corresponding to one side of the lead screw (5), the outer wall of the lead screw (5) and the outer wall of the sliding rod are both connected with a guide block, the moving frame (6) is connected between the two guide blocks, the inner wall of the moving frame (6) is connected with a drive motor (7) at the lower middle part, the output end of the drive motor (7) extends through to the upper end of the moving frame (6) and is connected with a shell (8).

3. An apparatus for automatic electric arc welding of a safety rigging fitting according to claim 2, characterized in that: The lower middle part of the inner wall of the shell (8) is connected with a hydraulic cylinder (9), the upper end of the hydraulic cylinder (9) extends through to the upper end of the shell (8), the upper end of the hydraulic cylinder (9) is connected with the lower middle part of the welding support plate (10), the upper end of the box (1) is provided with a sliding groove corresponding to the shell (8) at the upper end of the workbench (2), and the shell (8) is connected with the sliding groove.

4. An apparatus for automatic electric arc welding of safety harness fittings according to claim 1, characterized in that: The retractable mechanism includes a connecting motor (16), the output end of the connecting motor (16) extends through to the lower end of the cylinder (15), the output end of the connecting motor (16) is connected with a first bevel gear (17), the lower end of the cylinder (15) is connected with a connecting block (18) in the circumferential direction, the number of the connecting block (18) is four groups, and a plurality of connecting blocks (18) are rotatably connected with winding rollers (19) on one side of the middle part.

5. An apparatus for automatic electric arc welding of a safety rigging fitting according to claim 4, characterized in that: A plurality of winding rollers (19) are connected with winding ropes (20) on the outer wall of the middle part, a plurality of winding ropes (20) are connected with the lower end of the moving plate (22), the outer wall of the winding roller (19) is connected with a second bevel gear (21), and the upper ends of a plurality of second bevel gears (21) are respectively connected with the lower ends of the first bevel gears (17) in the circumferential direction.

6. An apparatus for automatic electric arc welding of safety harness fittings according to claim 1, characterized in that: The frame body (3) is provided with an opening (11) in the middle of the two sides, and the inner wall of the two openings (11) is connected with a conveyor belt (12).

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