Lifting lug welding equipment

Abstract

This utility model discloses a lifting lug welding device, comprising a worktable, a transfer mechanism, an end cap feeding mechanism, a storage rack, a picking component, a discharging component, a lifting lug feeding component, and a welding robot. The picking component is responsible for picking up the lifting lug from the storage rack and accurately placing it on the discharging component, which then horizontally transfers the lifting lug to the position of the lifting lug feeding component. Simultaneously, the end cap feeding mechanism transports the end cap to station one, and the transfer mechanism moves the end cap from station one to station two, automatically resetting to prepare for the next end cap. The lifting lug feeding component automatically places the lifting lug onto the end cap surface, and the welding robot then precisely welds the joint between the lifting lug and the end cap. This achieves automatic feeding, precise positioning, and efficient assembly of end caps and lifting lugs, effectively reducing errors from manual operation, lowering the labor intensity of operators, and improving the overall intelligence level and operational stability of the production line.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding equipment for lifting lugs. Background Technology

[0002] The entire manufacturing process of a water heater inner tank involves multiple different process stations to complete various manufacturing steps. Therefore, the inner tank must be efficiently and smoothly transported between these stations. To facilitate stable and safe transport and transfer of the inner tank, specially designed lifting lugs are typically welded to its ends. These lugs can be suspended using external lifting equipment, enabling smooth movement and precise positioning of the inner tank. To meet the high demands of modern production for efficiency and quality, there is an urgent need to develop specialized equipment capable of automatically and precisely welding lifting lugs onto the end caps. This would improve welding consistency and production efficiency while reducing errors and labor intensity associated with manual operation. Utility Model Content This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an embodiment of this utility model proposes a lug welding device, including a workbench, a transfer mechanism, an end cap feeding mechanism, a storage rack, a picking component, a discharging component, a lug feeding component, and a welding robot. The transfer mechanism is installed in the workbench, which has two stations: a first station and a second station. The end cap feeding mechanism is located on one side of the first station, the lug feeding component is located on one side of the second station, and the welding robot is located on the other side of the second station. The picking component removes the lug from the storage rack and places it on the discharging component, which then moves the lug to the lug feeding component. The end cap feeding mechanism places the end cap on the first station, and a third moving component transfers the end cap from the first station to the second station. The lug feeding component places the lug on the end cap, and the welding robot welds the lug to the end cap.

[0003] According to some embodiments of the present invention, the transfer mechanism includes a clamping assembly and a driving cylinder, the driving cylinder being connected to the clamping assembly, and the clamping assembly being used to clamp the end cap; The drive cylinder pulls the clamping assembly, causing the end cap clamped by the clamping assembly to move from station one to station two. The drive cylinder pushes the clamping assembly, causing the clamping assembly to move from station two to station one.

[0004] According to some embodiments of the present utility model, the clamping assembly includes a stand, a clamping plate, and a double-outlet cylinder. The stand is fixed on a slide table, the slide table is slidably mounted in the worktable, and the slide table is connected to the drive cylinder. Two uprights and two clamping plates are used, with the uprights located on the front and rear sides of the workbench, respectively. The clamping plate is fixedly installed on the top of the upright frame. The clamping plate has an arc-shaped notch, and the two arc-shaped notches are arranged opposite each other. The two piston rods of the dual-outlet cylinder are respectively connected to one of the uprights. When the dual-outlet cylinder drives the two uprights to move in opposite directions, the two arc-shaped notches clamp the end cap. When the dual-outlet cylinder drives the two uprights to move in opposite directions, the two arc-shaped notches release the end cap.

[0005] According to some embodiments of the present invention, a rotary table is provided on the workbench, the rotary table is located at a work station, and the rotary table is connected to a rotary drive component.

[0006] According to some embodiments of this utility model, a positioning component is also provided. The positioning component is located on one side of the workstation. The positioning component includes a shaft, an arm, a movable seat, and a base. The shaft is vertically arranged and rotatably mounted on the front end of the arm. A disc is mounted on the bottom end of the shaft. When the disc enters the hole of the end cover, the edge of the disc contacts the inner edge of the hole of the end cover.

[0007] The boom is slidably mounted on the movable base, and the boom is connected to a boom cylinder, which is fixed on the movable base; The movable seat is slidably mounted on the base, and the movable seat is connected to a pushing cylinder, which is fixed to the base.

[0008] According to some embodiments of the present invention, the end cap feeding mechanism includes a frame, a translation frame, a lifting plate, a top plate, and a circular plate, and a first moving component is installed between the frame and the translation frame; The translation frame is vertically mounted with a lifting cylinder. The piston rod of the lifting cylinder is connected to the lifting plate. Bushings are installed at the four corners of the lifting plate. Guide rods are installed inside the bushings. The top end of the guide rod is connected to the top plate, and the bottom end of the guide rod is connected to the lifting plate. An elastic element is installed between the lifting plate and the annular plate. A pin cylinder is fixed on the bottom surface of the lifting plate. The piston rod of the pin cylinder is connected to a pin, which is used to insert into the hole of the end cover.

[0009] According to some embodiments of the present invention, the material handling assembly includes a crossbeam, a fixed plate, a first cylinder, a second cylinder, and an elbow suction cup, and a second moving assembly is installed between the crossbeam and the fixed plate; The first cylinder is fixedly mounted on the fixed plate. The piston rod of the first cylinder is connected to the second cylinder. The first cylinder pushes and pulls the second cylinder in a vertical direction. The piston rod of the second cylinder is connected to the elbow of the elbow suction cup. The elbow suction cup is used to pick up the lifting lug.

[0010] According to some embodiments of the present utility model, the discharge assembly includes a base frame, a slide plate, a flip plate, a fixing clamp, a connecting rod, and a flip cylinder. The slide plate is slidably mounted on the top of the base frame, and the slide plate is connected to a translation cylinder, which is used to push and pull the slide plate. A bearing seat is fixedly installed on the slide plate. Two rotating shafts are symmetrically installed on the flip plate. The two rotating shafts are respectively rotated into the bearing seat. A fixing clamp is fixed on the flip plate and is used to fix and hold the lifting lug.

[0011] According to some embodiments of the present invention, one end of the connecting rod is fixedly connected to one of the rotating shafts, and the other end of the connecting rod is connected to the piston rod of the tilting cylinder. The tilting cylinder is used to push and pull the connecting rod, so that the connecting rod drives the tilting plate to rotate through the rotating shaft.

[0012] According to some embodiments of the present invention, the lifting lug feeding assembly includes a fixed frame, a mounting frame, a telescopic cylinder, and a second fixing clamp. A third moving component is installed between the fixed frame and the mounting frame. The telescopic cylinder is installed on the mounting frame, and the telescopic cylinder is connected to the first fixing clamp.

[0013] This utility model has at least the following beneficial effects: 1. The lifting lug feeding assembly 700 automatically places the lifting lug onto the end cap surface. The welding robot 800 then precisely welds the joint between the lifting lug and the end cap, ensuring stable and reliable welding quality. When the transfer mechanism 200 moves the next end cap to station 102, the next end cap will push the welded end cap out of station 102, and then the next end cap will be welded to the lifting lug, maintaining the continuity of the production process. The entire process achieves automatic feeding, precise positioning, and efficient assembly of end caps and lifting lugs, and significantly improves welding consistency and production efficiency through automated welding technology. At the same time, this solution effectively reduces errors from manual operation, lowers the labor intensity of operators, and improves the overall intelligence level and operational stability of the production line.

[0014] 2. When the rotary table rotates the end cover, the end cover may shift during rotation, affecting the accuracy of subsequent processing. To address this, before the rotary table begins to rotate, the push cylinder pushes the moving seat, moving it towards the worktable. This moves the shaft above the end cover hole, and the arm cylinder pulls the arm down, lowering it so that the disc enters the hole. The outer edge of the disc contacts the inner edge of the end cover hole, causing the end cover to rotate around the shaft and preventing it from shifting during rotation. After the end cover is adjusted, the arm cylinder and push cylinder reset sequentially, ready for the next end cover.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is an overall schematic diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the workbench according to an embodiment of the present utility model; Figure 3 This is a top view of the workbench according to an embodiment of the present utility model; Figure 4 for Figure 3 Schematic diagram of the AA section; Figure 5 for Figure 3 Schematic diagram of the BB cross section; Figure 6 This is a schematic diagram of the clamp assembly according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the end cap feeding mechanism and positioning component according to an embodiment of the present invention. Figure 1 ; Figure 8 This is a schematic diagram of the end cap feeding mechanism and positioning component according to an embodiment of the present invention. Figure 2 ; Figure 9 This is a schematic diagram of the material handling component according to an embodiment of the present utility model; Figure 10 This is a schematic diagram showing the combined state of the discharge component and the lifting lug feeding component according to an embodiment of the present utility model; Figure 11 This is a schematic diagram of the discharge component according to an embodiment of the present utility model; Figure 12 This is a schematic diagram of the lifting lug feeding assembly according to an embodiment of the present utility model; Figure 13 for Figure 12 An enlarged diagram of C in the diagram. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] Reference Figure 1As shown, the lug welding equipment consists of a workbench 100, a transfer mechanism 200, an end cap feeding mechanism 300, a storage rack 400, a material handling component 500, a material discharging component 600, a lug feeding component 700, a welding robot 800, and a positioning component 1000. The workbench 100 is equipped with the transfer mechanism 200. The workbench surface is divided into three stations according to the process flow: station 101, station 102, and station 3. The end cap feeding mechanism 300 is located on one side of station 101, the lug feeding component 700 and the positioning component 1000 are located on the other side of station 202, and the welding robot 800 is located on the other side of station 3.

[0019] The material handling component 500 is responsible for picking up the lifting lug from the storage rack 400 and accurately placing it on the discharge component 600. The discharge component 600 then horizontally moves the lifting lug to the location of the lifting lug loading component 700. At the same time, the end cap loading mechanism 300 transports the end cap to station 101, and the transfer mechanism 200 transfers the end cap from station 101 to station 202, and automatically resets to prepare for the transfer of the next end cap.

[0020] The lifting lug loading assembly 700 automatically places the lifting lug onto the end cap surface. The welding robot 800 then precisely welds the joint between the lifting lug and the end cap, ensuring stable and reliable welding quality. When the transfer mechanism 200 moves the next end cap to station 102, the next end cap will push the welded end cap out of station 102, and then the next end cap will be welded to the lifting lug, maintaining the continuity of the production process. The entire process achieves automatic loading, precise positioning, and efficient assembly of end caps and lifting lugs, and significantly improves welding consistency and production efficiency through automated welding technology. At the same time, this solution effectively reduces errors from manual operation, lowers the labor intensity of operators, and improves the overall intelligence level and operational stability of the production line.

[0021] Reference Figures 2 to 6 The transfer mechanism 200 includes a clamping assembly 210 and a drive cylinder 220. The drive cylinder 220 is connected to the clamping assembly 210, which is responsible for clamping the end cap. The drive cylinder 220 moves the clamped end cap from station 101 to station 202 by pulling the clamping assembly 210, and then pushes the clamping assembly 210 back to station 101, thus realizing cyclic transfer.

[0022] The clamping assembly 210 consists of a stand 211, a clamping plate 212, and a double-outlet cylinder 213. The stand 211 is fixed on a slide table 214, which is slidably installed within the worktable 100 and connected to the drive cylinder 220. The stand 211 and clamping plate 212 are arranged in pairs, located on the front and rear sides of the worktable 100, respectively. The clamping plate 212 has an arc-shaped notch 2121 at its top, with the two notches facing each other. The two piston rods of the double-outlet cylinder 213 are each connected to one stand 211. When the double-outlet cylinder 213 drives the two stands 211 to move towards each other, the arc-shaped notch 2121 clamps the end cap; when moving in the opposite direction, it loosens the end cap.

[0023] The workbench 100 has a rotary table 900 at station 101. The rotary table 900 is connected to the rotary drive 910. When the end cap is placed on the rotary table 900 by the end cap feeding mechanism 300, the rotary drive 910 drives the rotary table 900 to rotate, so as to adjust the position of the welding position on the end cap and make the welding position accurately oriented for subsequent processing steps.

[0024] Reference Figure 8 As shown, the positioning assembly 1000 is arranged on one side of station 2 102, including a shaft 1100, an arm 1200, a movable seat 1300, and a base 1400. The shaft 1100 is vertically installed at the front end of the arm 1200 and can rotate. A disc 1500 is installed at the bottom end of the shaft 1100. The arm 1200 is slidably installed on the movable seat 1300 and connected to the arm cylinder 1600. The arm cylinder 1600 drives the arm to move up and down. The disc 1500 descends into the hole of the end cover. The movable seat 1300 is slidably installed on the base 1400 and is driven by the push cylinder 1700 to move horizontally.

[0025] When the rotary table 900 rotates the end cap, the end cap may shift during rotation, affecting the accuracy of subsequent processing. To address this, before the rotary table 900 begins to rotate, the push cylinder 1700 pushes the moving seat 1300, causing the moving seat 1300 to move towards the worktable 100. This moves the shaft 1100 above the end cap hole, and the arm cylinder 1600 pulls the arm 1200 downward, causing the arm 1200 to descend and the disc 1500 to enter the hole. The outer edge of the disc 1500 contacts the inner edge of the end cap hole, allowing the end cap to rotate around the shaft 1100 and preventing the end cap from shifting during rotation. After the end cap adjustment is complete, the arm cylinder 1600 and the push cylinder 1700 are reset sequentially, awaiting the next end cap.

[0026] To prevent the end cap from malfunctioning during rotation, the shaft 1100 is precisely positioned above the workpiece for clamping.

[0027] Referring to Figures 7 and 8, the end cap feeding mechanism 300 includes a frame 310, a translation frame 320, a lifting plate 330, a top plate 340, and a ring plate 350. The frame 310 and the translation frame 320 move horizontally through a first moving component 360.

[0028] A lifting cylinder 370 is vertically installed on the translation frame 320. Its piston rod is connected to the lifting plate 330. The lifting plate 330 is equipped with bushings 380 at its four corners. Guide rods 390 are inserted into the bushings 380. The top end of the guide rods 390 is connected to the top plate 340, and the bottom end is fixed to the lifting plate 330, forming a stable guiding structure.

[0029] An elastic element 3100 is installed between the lifting plate 330 and the annular plate 350. A locking pin cylinder 3200 is installed at the bottom of the lifting plate 330. The piston rod end of the locking pin cylinder 3200 is connected to the pin 3300. In order to meet the needs of subsequent intermediate processing, a hole is opened in the center of the end cover. Therefore, the pin 3300 is pushed and locked into the hole by the locking pin cylinder 3200 to realize the gripping of the end cover.

[0030] During end cap loading, the first moving component 360 moves the translation frame 320 to above the discharge end of the feeding trolley or the previous processing equipment, so that the pin 3300 faces the hole on the end cap from above. The lifting cylinder 370 pushes the lifting plate 330 down. At the same time as it descends, the annular plate 350 contacts the end cap. As the lifting plate 330 continues to descend, the elastic element 3100 is squeezed by the lifting plate 330 and begins to compress. When the lifting plate 330 descends to the preset position, the lifting cylinder 370 stops working, and the pin-tightening cylinder 3200 pushes the pin 3300. Since the pin 3300 is frustum-shaped, after the pin 3300 passes through the central hole of the annular plate 350 and is inserted into the hole of the end cap, it can remain in a tight state in the hole, and the elastic element 3100 can also remain in a compressed state.

[0031] After the end cap is picked up, the lifting cylinder 370 resets, raising the lifting plate 330. Simultaneously, the first moving component 360 moves towards the worktable 100. When the end cap is above workstation 101, the first moving component 360 stops, and the lifting cylinder 370 begins to push the lifting plate 330 downwards. After the end cap is placed on the rotary table 900, the locking pin cylinder 3200 pulls the pin 3300, dislodging it from the cavity. During the process, the elastic force of the elastic element 3100 acts on the annular plate 350, keeping the annular plate 350 pressed down on the end cover, preventing the end cover from being moved upward by the upward-moving pin 3300, ensuring that the pin 3300 can be smoothly pulled out of the hole. After the pin 3300 is pulled out, the lifting cylinder 370 resets, and then the first moving component 360 starts to work, moving the pin 3300 to the top of the next end cover, and repeating the above action to achieve uninterrupted feeding of the end cover.

[0032] Reference Figure 9 As shown, the material handling assembly 500 includes a crossbeam 510, a fixed plate 520, a first cylinder 530, a second cylinder 540, and a curved suction cup 550. The fixed plate 520 moves laterally by means of a second moving assembly 560. The first cylinder 530 is mounted on the fixed plate 520, and its piston rod is connected to the second cylinder 540, which can drive the second cylinder 540 to move in the vertical direction. The piston rod of the second cylinder 540 is connected to the curved suction cup 550, which is used to pick up the lifting lug.

[0033] The lifting lugs are stacked on the storage rack 400. As the assembly and production progresses, the weight borne by the lifting lugs will gradually increase. Therefore, the lifting lugs themselves are designed with corresponding reinforcement structures. As a result, the lifting lugs will not remain horizontal after being stacked, but will tilt. For this reason, a bent suction cup 550 is used. The curvature of the bent suction cup 550 is matched with the tilt angle of the lifting lug, so that the suction cup can contact the surface of the lifting lug and achieve the suction of the lifting lug.

[0034] When the lifting lug is being used to pick up material, the second moving component 560 operates, causing the elbow suction cup 550 to move to the storage rack 400. The first cylinder 530 pushes the second cylinder 540 downward. When the second cylinder 540 descends to the preset position, it starts to work, pushing the elbow suction cup 550 downward. After the elbow suction cup 550 picks up the lifting lug, the second cylinder 540 and the first cylinder 530 reset in sequence, and the second moving component 560 starts to work, moving towards the discharge component 600.

[0035] After the lifting lug is moved above the discharge assembly 600, the first cylinder 530 and the second cylinder 540 unfold in sequence, sending the lifting lug into the discharge assembly 600. After the discharge assembly 600 receives and fixes the lifting lug, the second cylinder 540 and the first cylinder 530 reset in sequence. The above actions are repeated to achieve uninterrupted material handling of the lifting lug.

[0036] Reference Figure 10 , 11 As shown, the discharge assembly 600 consists of a base frame 610, a slide plate 620, a tilting plate 630, a fixing clamp 640, a connecting rod 660, and a tilting cylinder 670. The slide plate 620 is slidably mounted on the top of the base frame 610. The slide plate 620 is connected to a translation cylinder 680. By pushing and pulling the slide plate 620 through the translation cylinder 680, the slide plate 620 can move horizontally back and forth on the top of the base frame 610.

[0037] The skateboard 620 is equipped with two bearing seats 621. The two ends of the flip plate 630 are rotatably connected to the bearing seats 621 via the rotating shaft 631. The fixing clamp 640 is installed on the flip plate 630 and the lifting lug is clamped on the fixing clamp 640. By rotating the flip plate 630, the flip plate 630 can be tilted to receive the lifting lug, or the lifting lug can be rotated to a horizontal state.

[0038] To facilitate the rotation of the flip plate 630, one of the two rotating shafts 631 is fixedly connected to one end of the connecting rod 660, while the other end of the connecting rod 660 is connected to the piston rod of the flip cylinder 670. The flip cylinder 670 pushes the connecting rod 660, causing the connecting rod 660 to rotate the rotating shaft 631 connected to it, thus flipping the flip plate 630 to an inclined state. At this time, the lifting lugs adsorbed by the elbow suction cup 550 are parallel to the plate surface of the flip plate 630, so that the clamp can clamp and fix the lifting lugs.

[0039] After clamping and fixing, the flipping cylinder 670 is reset, and the connecting rod 660 is pulled back, causing the connecting rod 660 to drive the flipping plate 630 to rotate in the opposite direction around the axis, so that the lifting lug flips from the tilted state to the horizontal state, thereby realizing the attitude adjustment of the lifting lug.

[0040] After the lifting lug's posture is adjusted, the translation cylinder 680 pulls the slide plate 620, causing the slide plate 620 to move to the lifting lug feeding assembly 700, so that the lifting lug feeding assembly 700 can start feeding the lifting lug.

[0041] Reference Figures 11 to 13As shown, the lifting lug loading assembly 700 includes a fixed frame 710, a mounting frame 720, a telescopic cylinder 730, and a second fixing clamp 740. A third moving component 750 is installed between the upright frame 211 and the mounting frame 720. The third moving component 750 is used to move the mounting frame 720. The telescopic cylinder 730 is installed on the mounting frame 720. The front end of the telescopic cylinder 730 is connected to the second fixing clamp 740 for clamping the lifting lug.

[0042] When the lifting lug is being loaded, the telescopic cylinder 730 pushes the fixed clamp 740 downwards, causing the fixed clamp 740 to clamp the lifting lug. The telescopic cylinder 730 then resets. At the same time, the third moving component 750 operates, moving the lifting lug above the second station. The telescopic cylinder 730 then pushes the fixed clamp 740 downwards, causing the fixed clamp 740 to release its clamp on the lifting lug, allowing the lifting lug to be placed on the end cap. The telescopic cylinder 730 then resets, and the above actions are repeated to achieve uninterrupted loading of the end cap.

[0043] The first moving component 360, the second moving component 560, and the third moving component 750 mentioned above all include a rack, a gear, and a drive motor. The rack is fixed on the upright frame 211, and the drive motor is fixed on the translation frame 320. The gear is installed on the drive motor, and the gear meshes with the rack. The drive motor drives the gear to rotate clockwise or counterclockwise, so that the gear moves left or right along the rack, thereby realizing reciprocating movement.

[0044] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A lug welding equipment, characterized in that, The system includes a workbench (100), a transfer mechanism (200), an end cap loading mechanism (300), a storage rack (400), a material picking component (500), a material discharging component (600), a lifting lug loading component (700), and a welding robot (800). The transfer mechanism (200) is installed inside the workbench (100). The workbench (100) has a first station (101) and a second station (102). The end cap loading mechanism (300) is installed on one side of the first station (101), the lifting lug loading component (700) is installed on one side of the second station (102), and the welding robot (800) is installed on the other side of the second station (102). The material handling component (500) removes the lifting lug from the storage rack (400) and places it on the discharge component (600), and the discharge component (600) moves the lifting lug to the lifting lug loading component (700); The end cap feeding mechanism (300) places the end cap on station one (101), and the transfer mechanism (200) transfers the end cap from station one (101) to station two (102); The lug feeding assembly (700) places the lug on the end cap, and the welding robot (800) welds the lug to the end cap.

2. The lifting lug welding equipment according to claim 1, characterized in that, The transfer mechanism (200) includes a clamp assembly (210) and a drive cylinder (220), the drive cylinder (220) being connected to the clamp assembly (210), and the clamp assembly (210) being used to clamp the end cap; The drive cylinder (220) pulls the clamping assembly (210) to move the end cap clamped by the clamping assembly (210) from station one (101) to station two (102), and the drive cylinder (220) pushes the clamping assembly (210) to move the clamping assembly (210) from station two (102) to station one (101).

3. The lifting lug welding equipment according to claim 2, characterized in that, The clamp assembly (210) includes a stand (211), a clamping plate (212), and a double-outlet cylinder (213). The stand (211) is fixed on a slide (214), the slide (214) is slidably mounted in the worktable (100), and the slide (214) is connected to the drive cylinder (220). Two uprights (211) and two clamps (212) are used, with the uprights (211) located on the front and rear sides of the workbench (100) respectively; The clamping plate (212) is fixedly installed on the top of the upright (211), and the clamping plate (212) is provided with an arc-shaped notch (2121), and the two arc-shaped notches (2121) are arranged opposite each other; The two piston rods of the dual-outlet cylinder (213) are respectively connected to one of the uprights (211). When the dual-outlet cylinder (213) drives the two uprights (211) to move in opposite directions, the two arc-shaped notches (2121) clamp the end cap; when the dual-outlet cylinder (213) drives the two uprights (211) to move in opposite directions, the two arc-shaped notches (2121) loosen the end cap.

4. The lug welding equipment according to claim 3, characterized in that, The workbench (100) is equipped with a rotary table (900), which is located at work station one (101). The rotary table (900) is connected to a rotary drive component (910).

5. The lifting lug welding equipment according to claim 4, characterized in that, A positioning component (1000) is also provided. The positioning component (1000) is located on one side of the workstation (101). The positioning component (1000) includes a shaft (1100), an arm (1200), a movable seat (1300), and a base (1400). The shaft (1100) is vertically arranged and rotatably mounted on the front end of the arm (1200). A disc (1500) is mounted on the bottom end of the shaft (1100). When the disc (1500) enters the hole of the end cover, the edge of the disc (1500) contacts the inner edge of the hole of the end cover. The boom (1200) is slidably mounted on the movable seat (1300), and the boom (1200) is connected to a boom cylinder (1600), which is fixed on the movable seat (1300). The movable seat (1300) is slidably mounted on the base (1400), and the movable seat (1300) is connected to a push cylinder (1700), which is fixed on the base (1400).

6. The lifting lug welding equipment according to claim 1, characterized in that, The end cap feeding mechanism (300) includes a frame (310), a translation frame (320), a lifting plate (330), a top plate (340), and a ring plate (350). A first moving component (360) is installed between the frame (310) and the translation frame (320). The translation frame (320) is vertically mounted with a lifting cylinder (370). The piston rod of the lifting cylinder (370) is connected to the lifting plate (330). The four corners of the lifting plate (330) are equipped with bushings (380). A guide rod (390) is installed inside the bushing (380). The top end of the guide rod (390) is connected to the top plate (340), and the bottom end of the guide rod (390) is connected to the lifting plate (330). An elastic element (3100) is installed between the lifting plate (330) and the annular plate (350). A pin cylinder (3200) is fixed on the bottom surface of the lifting plate (330). The piston rod of the pin cylinder (3200) is connected to a pin (3300). The pin (3300) passes through the central hole of the annular plate (350) and is inserted into the hole of the end cap.

7. The lifting lug welding equipment according to claim 1, characterized in that, The material handling assembly (500) includes a crossbeam (510), a fixed plate (520), a first cylinder (530), a second cylinder (540), and a elbow suction cup (550). A second moving assembly (560) is installed between the crossbeam (510) and the fixed plate (520). The first cylinder (530) is fixedly installed on the fixed plate (520). The piston rod of the first cylinder (530) is connected to the second cylinder (540). The first cylinder (530) pushes and pulls the second cylinder (540) in the vertical direction. The piston rod of the second cylinder (540) is connected to the elbow of the elbow suction cup (550). The elbow suction cup (550) is used to pick up the lifting lug.

8. The lifting lug welding equipment according to claim 1, characterized in that, The discharge assembly (600) includes a base frame (610), a slide plate (620), a tilting plate (630), and a fixing clamp (640). The slide plate (620) is slidably mounted on the top of the base frame (610). The slide plate (620) is connected to a translation cylinder (680), which is used to push and pull the slide plate (620). The tilting plate (630) is rotatably mounted on the slide plate (620). The fixing clamp (640) is fixed on the tilting plate (630), which is used to fix and hold the lifting lugs.

9. The lug welding equipment according to claim 8, characterized in that, The discharge assembly (600) also includes a connecting rod (660) and a tilting cylinder (670). A bearing seat (621) is fixedly installed on the sliding plate (620), and two rotating shafts (631) are symmetrically installed on the flip plate (630). The two rotating shafts (631) are respectively rotated into the bearing seat (621). One end of the connecting rod (660) is fixedly connected to one of the rotating shafts (631), and the other end of the connecting rod (660) is connected to the piston rod of the tilting cylinder (670). The tilting cylinder (670) is used to push and pull the connecting rod (660) so that the connecting rod (660) drives the tilting plate (630) to rotate through the rotating shaft (631).

10. The lifting lug welding equipment according to claim 1, characterized in that, The lifting lug loading assembly (700) includes a fixed frame (710), a mounting frame (720), a telescopic cylinder (730), and a second fixing clamp (740). A third moving assembly (750) is installed between the fixed frame (710) and the mounting frame (720). The telescopic cylinder (730) is installed on the mounting frame (720), and the telescopic cylinder (730) is connected to the second fixing clamp (740).

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