Welding wheel mechanism of automatic welding machine for steel pail

Abstract

The utility model discloses a welding wheel mechanism of an automatic welding machine for a steel pail, relates to the technical field of steel pail production equipment, aims to solve the technical problem that a compression bolt in the current welding wheel mechanism is easy to loosen, and comprises an upper welding arm and a welding arm hinge seat. According to the limiting structure, the main limiting piece in the limiting structure is arranged on the compression bolt, the secondary limiting piece is arranged on the upper welding arm, and after the compression bolt is tightened, the limiting gear ring in the main limiting piece on the compression bolt can be in butt joint and clamped with the limiting tooth groove in the secondary limiting piece on the upper welding arm; the pressing bolt can be limited through the limiting device, the situation that the pressing bolt is loosened due to vibration generated during seam welding of the steel pail is avoided, the stability of the upper welding arm can be guaranteed, and the stability of front-back position adjustment of the large welding wheel is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of steel bucket production equipment, and more specifically, to a welding wheel mechanism of an automatic steel bucket welding machine. Background Technology

[0002] In the production process of steel buckets, the quality of the weld seam plays a key role in the sealing performance, strength and other properties of the bucket. Automatic welding machines are common equipment for welding steel buckets. During the operation of the automatic welding machine, the welding seam of the steel bucket is mainly completed through the welding wheel mechanism.

[0003] In existing welding wheel mechanisms, the front-to-back position adjustment of the large welding wheel is mainly achieved by first loosening the clamping bolts, then adjusting the front-to-back movement using limit nuts until the grooves of the large welding wheel and the lower welding wheel are aligned. The clamping bolts are then tightened to fix the upper welding arm and the large welding wheel. However, vibrations occur during the welding of the steel bucket seam, and these vibrations are transmitted to the clamping bolts, easily causing them to rotate and loosen. This leads to the upper welding arm shifting forward and backward, which in turn causes the large welding wheel to shift forward and backward, resulting in misalignment between the grooves of the large and lower welding wheels, thus affecting the welding effect. Therefore, we propose a welding wheel mechanism for an automatic steel bucket welding machine. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a welding wheel mechanism for an automatic steel bucket welding machine to solve the technical problem that the clamping bolts in the current welding wheel mechanism are prone to loosening.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a welding wheel mechanism for an automatic steel bucket welding machine, comprising an upper welding arm and a welding arm hinge seat. A welding arm mounting rod is arranged on the front side of the welding arm hinge seat, and the upper welding arm is arranged on the welding arm mounting rod. A limit nut is arranged on the rear side of the welding arm mounting rod, and a clamping bolt is arranged at the front end of the welding arm mounting rod. A limit structure is arranged at the front end of the clamping bolt. The limit structure includes a main limit member and a secondary limit member. The main limit member includes a welding seat and a... The welding seat is provided with a clamping bolt front end, the limiting gear ring is arranged on the welding seat, the secondary limiting component includes a limiting ring and a mounting sleeve, the mounting sleeve is arranged on the upper welding arm, the limiting ring is fitted on the mounting sleeve, and the limiting ring and the mounting sleeve are elastically connected, the limiting ring has a limiting tooth groove corresponding to the limiting gear ring on the side facing away from the mounting sleeve, the upper welding arm has a large welding wheel arranged at the end facing away from the welding arm hinge seat, and a guide wheel is arranged above the large welding wheel, and a pressure adjustment structure is arranged at the end of the large welding wheel;

[0006] The limiting tooth ring is arranged at an angle, and the angle of the limiting tooth ring is consistent with the tightening direction of the clamping bolt. The limiting tooth groove is arranged at an angle, and the angle of the limiting tooth groove is matched with the limiting tooth ring.

[0007] This utility model employs a designed limiting structure. The main limiting component is positioned on the clamping bolt, and the secondary limiting component is positioned on the upper welding arm. After tightening the clamping bolt, the limiting toothed ring in the main limiting component on the clamping bolt engages with the limiting toothed groove in the secondary limiting component on the upper welding arm. This effectively limits the clamping bolt, preventing loosening caused by vibrations during welding of the steel bucket seam. This ensures the stability of the upper welding arm, and consequently, the stability of the large welding wheel's forward and backward position adjustment. The main limiting component of this utility model... The limiting tooth ring is inclined, and the inclination direction of the limiting tooth groove is consistent with the tightening direction of the clamping bolt. The limiting tooth groove on the limiting ring in the secondary limiting component is also inclined, and its inclination direction matches that of the limiting tooth ring. Therefore, with the coordinated cooperation of the inclined limiting tooth ring and the limiting tooth groove, a single limit can be achieved in the loosening direction of the clamping bolt, so it will not affect the tightening of the clamping bolt. Therefore, after the front and rear positions of the large welding wheel are adjusted, the limiting structure not only prevents the clamping bolt from loosening but also facilitates personnel to tighten the clamping bolt.

[0008] Preferably, the pressure regulating structure includes a lifting handle, a pressure seat, a pressure regulating nut, and a pressure spring, which are installed sequentially from top to bottom on the pressure device of the large welding wheel.

[0009] Preferably, a lower hinge seat is arranged at the bottom of the welding arm hinge seat, and hinge seat locking screws are arranged between the four corners of the bottom of the welding arm hinge seat and the lower hinge seat. Welding wheel parallel adjustment screws are arranged at the four corners of the top of the welding arm hinge seat, and an adjustment screw is arranged on one side of the lower hinge seat.

[0010] Preferably, the welding seat is composed of a hexagonal segment and a circular segment, the limiting toothed ring is arranged on one side of the circular segment, and the circular segment is connected to the clamping bolt.

[0011] Preferably, the limiting ring has several sets of limiting blocks arranged at equal intervals inside, the mounting sleeve has a limiting groove corresponding to the limiting block around its circumference, and the limiting block is located in the limiting groove. The mounting sleeve has a mounting ring arranged on the side facing away from the limiting ring, and several sets of mounting bolts are arranged at equal intervals around the mounting ring.

[0012] Preferably, the limiting ring has an outer expansion ring facing the mounting sleeve side, and several sets of limiting springs are arranged circumferentially between the outer expansion ring and the mounting ring.

[0013] Preferably, the end of the large welding wheel is provided with a mercury-filled end cap.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model utilizes a designed limiting structure. The main limiting component is positioned on the clamping bolt, and the secondary limiting component is positioned on the upper welding arm. After tightening the clamping bolt, the limiting tooth ring in the main limiting component on the clamping bolt engages with the limiting tooth groove in the secondary limiting component on the upper welding arm. This limits the clamping bolt, preventing it from loosening due to vibrations during welding of the steel bucket seam. This ensures the stability of the upper welding arm, i.e., the stability of the front-to-back position adjustment of the large welding wheel. This solves the technical problem of clamping bolts easily loosening in current welding wheel mechanisms. Therefore, this utility model has the advantage of limiting and fixing the clamping bolt.

[0016] 2. The limiting tooth ring in the main limiting component of this utility model is inclined, and the inclination direction of the limiting tooth groove is consistent with the tightening direction of the clamping bolt. The limiting tooth groove on the limiting ring in the secondary limiting component is also inclined, and its inclination direction is matched with the limiting tooth ring. Therefore, with the coordinated cooperation of the inclined limiting tooth ring and the limiting tooth groove, a single limit can be achieved in the loosening direction of the clamping bolt, so it will not affect the tightening of the clamping bolt. Therefore, after the front and rear positions of the large welding wheel are adjusted, the limiting structure not only prevents the clamping bolt from loosening but also facilitates personnel to tighten the clamping bolt. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a top view of the structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the limiting structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the main limiting component structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the secondary limiting component structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the limiting ring structure of this utility model;

[0023] Figure 7 This is a schematic diagram of the mounting sleeve structure of this utility model.

[0024] Explanation of the labels in the diagram:

[0025] 1. Lift handle; 2. Pressure seat; 3. Pressure adjusting nut; 4. Pressure spring; 5. Guide wheel; 6. Large welding wheel; 7. Upper welding arm; 8. Adjusting screw; 9. Welding arm hinge seat; 10. Hinge seat locking screw; 11. Welding wheel parallel adjustment screw; 12. Limit nut; 13. Clamping bolt; 14. Mercury end cap; 15. Hinge seat lower seat; 16. Pressure adjusting structure; 17. Welding arm mounting rod; 18. Limiting structure; 19. Main limiting component; 1901. Welding seat; 1902. Limiting tooth ring; 20. Secondary limiting component; 21. Limiting ring; 2101. Limiting tooth groove; 2102. Limiting block; 2103. Outer expansion ring; 22. Mounting sleeve; 2201. Limiting groove; 2202. Mounting ring; 2203. Mounting bolt; 23. Limiting spring. Detailed Implementation

[0026] like Figures 1 to 7 As shown, the present invention relates to a welding wheel mechanism for an automatic steel bucket welding machine, comprising an upper welding arm 7 and a welding arm hinge seat 9. A welding arm mounting rod 17 is arranged on the front side of the welding arm hinge seat 9, and the upper welding arm 7 is arranged on the welding arm mounting rod 17. A limit nut 12 is arranged on the rear side of the welding arm mounting rod 17, and a clamping bolt 13 is arranged at the front end of the welding arm mounting rod 17. A limit structure 18 is arranged at the front end of the clamping bolt 13. The limit structure 18 includes a main limit member 19 and a secondary limit member 20. The main limit member 19 includes a welding seat 1901 and a limit gear ring 1902. The welding seat 1901 is provided with the front end of the clamping bolt 13, and the limit gear ring 1902 is arranged on the welding seat 1901. The secondary limit member 20 includes a limit ring 21 and a safety ring 20. Mounting sleeve 22 is arranged on the upper welding arm 7. Limiting ring 21 is fitted on mounting sleeve 22 and elastically connected to mounting sleeve 22. Limiting ring 21 has a limiting tooth groove 2101 corresponding to limiting tooth ring 1902 on the side facing away from mounting sleeve 22. A large welding wheel 6 is arranged on the side of the upper welding arm 7 facing away from welding arm hinge seat 9, and a guide wheel 5 is arranged above the large welding wheel 6. A pressure adjustment structure 16 is arranged at the end of the large welding wheel 6. A lower hinge seat 15 is arranged at the bottom of the welding arm hinge seat 9. A hinge seat locking screw 10 is arranged between the four corners of the bottom of the welding arm hinge seat 9 and the lower hinge seat 15. A welding wheel parallel adjustment screw 11 is arranged at the four corners of the top of the welding arm hinge seat 9. An adjustment screw 8 is arranged on one side of the lower hinge seat 15.

[0027] When welding the seam of the steel bucket, the pressure of the large welding wheel 6 and the lower welding wheel can be adjusted through the pressure regulating structure 16. When it is necessary to adjust the center position of the large welding wheel 6, loosen the hinge seat locking screw 10 on the welding arm hinge seat 9. The adjusting screw 8 moves backward if it is turned clockwise and forward if it is turned counterclockwise. When the overlap width between the weld and the Z-shaped rod is not equal, check whether the copper wire of the large welding wheel 6 is completely attached to the copper wire of the lower welding wheel. If it is not completely attached, the weld on the surface of the tank body will be too small and the weld will not be firm. At this time, the parallelism of the large welding wheel 6 and the lower welding wheel should be adjusted. Slightly loosen the hinge seat locking screw 10, adjust the inward and outward offset of the welding wheel parallel adjustment screw 11, and then loosen the clamping bolt 13. Adjust the upper welding arm 7 and the large welding wheel 6 back and forth through the limit nut 12 until the grooves of the large welding wheel 6 and the lower welding wheel are aligned, and then tighten the clamping bolt. 13. After tightening the clamping bolt 13, the limiting tooth ring 1902 in the main limiting part 19 on the clamping bolt 13 will engage with the limiting tooth groove 2101 in the upper limiting part 20 of the upper welding arm 7, thereby limiting the clamping bolt 13 and preventing the clamping bolt 13 from loosening due to vibration generated during welding of the steel bucket seam. This ensures the stability of the upper welding arm 7, that is, the stability of the front and rear position adjustment of the large welding wheel 6. Then, driven by the copper wire, the large welding wheel 6 and the lower welding wheel rotate. At the same time, the large welding wheel 6 also has a sprocket compensation drive from the main drive output. The large welding wheel 6 is subjected to the pressure of the pressure device above, which transmits the welding pressure to the tank body to be welded. The large welding wheel 6 and the lower welding wheel weld the tank body that enters the sizing gauge. The heat generated during welding is carried away by cooling water.

[0028] Specifically, the welding seat 1901 is composed of a hexagonal segment and a circular segment. The limiting toothed ring 1902 is arranged on one side of the circular segment, and the circular segment is connected to the clamping bolt 13. The hexagonal segment facilitates the use of a wrench to tighten the clamping bolt 13.

[0029] Furthermore, several sets of limiting blocks 2102 are equidistantly arranged inside the limiting ring 21. The mounting sleeve 22 has limiting grooves 2201 corresponding to the limiting blocks 2102 around its circumference, with the limiting blocks 2102 located within the limiting grooves 2201. A mounting ring 2202 is arranged on the side of the mounting sleeve 22 facing away from the limiting ring 21, and several sets of mounting bolts 2203 are equidistantly arranged around the mounting ring 2202. An expanding ring 2103 is arranged on the side of the limiting ring 21 facing the mounting sleeve 22, and several sets of limiting springs 23 are equidistantly arranged circumferentially between the expanding ring 2103 and the mounting ring 2202. The mounting sleeve 22 is installed to the upper welding arm 7 via the mounting bolts 2203 on the mounting ring 2202. The limiting grooves 2201 and the limiting blocks 2102 cooperate to limit the limiting ring 21, preventing it from rotating on the mounting sleeve 22. The limiting springs 23 achieve an elastic connection between the limiting ring 21 and the mounting sleeve 22.

[0030] Furthermore, a mercury end cap 14 is arranged at the end of the large welding wheel 6. The mercury end cap 14 has a sealing effect and provides structural sealing protection for the inside of the large welding wheel 6.

[0031] It is worth noting that the pressure adjustment structure 16 includes a lifting handle 1, a pressure seat 2, a pressure adjusting nut 3, and a pressure spring 4. The lifting handle 1, pressure seat 2, pressure adjusting nut 3, and pressure spring 4 are installed sequentially from top to bottom on the pressure device of the large welding wheel 6. The welding pressure is provided by the pressure spring 4, and the magnitude of the welding pressure is adjusted by the pressure adjusting nut 3. Turning the pressure adjusting nut 3 clockwise increases the welding pressure, and vice versa. The appropriateness of the welding pressure directly affects the quality of the weld. A general inspection method is to place an empty can between the large welding wheel 6 and the lower welding wheel, lower the lifting handle 1 of the large welding wheel 6, and pull it forward evenly. At this time, the can body can slide forward under the action of force, but it should not be too loose. The specific welding pressure should be determined according to the welding effect. Generally, when the welding pressure is slightly higher, the welding current should also be relatively increased.

[0032] In the embodiments of this utility model, the limiting tooth ring 1902 is arranged at an angle, and the angle of the limiting tooth ring 1902 is consistent with the tightening direction of the clamping bolt 13. The limiting tooth groove 2101 is arranged at an angle, and the angle of the limiting tooth groove 2101 is matched with the limiting tooth ring 1902.

[0033] With the coordinated action of the inclined limiting tooth ring 1902 and the limiting tooth groove 2101, a single limiting can be achieved in the loosening direction of the clamping bolt 13, so it will not affect the tightening of the clamping bolt 13. Therefore, after the front and rear positions of the large welding wheel 6 are adjusted, the limiting structure 18 not only limits the clamping bolt 13 to prevent loosening, but also facilitates personnel to tighten the clamping bolt 13.

[0034] Working Principle: This embodiment provides a welding wheel mechanism for an automatic steel bucket welding machine. First, when welding the steel bucket seam, the operator can adjust the pressure of the large welding wheel 6 and the lower welding wheel through the pressure adjustment structure 16. When it is necessary to adjust the center position of the large welding wheel 6, loosen the hinge seat locking screw 10 on the welding arm hinge seat 9. The adjusting screw 8 moves backward clockwise and forward counterclockwise. When the overlap width between the weld seam and the Z-shaped rod is not equal, check whether the copper wire of the large welding wheel 6 is completely attached to the copper wire of the lower welding wheel. If it is not completely attached, the weld seam on the surface of the tank body is too small and the weld is not firm. At this time, the parallelism between the large welding wheel 6 and the lower welding wheel should be adjusted. Slightly loosen the hinge seat locking screw 10, adjust the inward and outward offset of the welding wheel parallel adjustment screw 11, and then loosen the clamping bolt 13. Adjust the upper welding arm 7 and the large welding wheel 6 back and forth through the limit nut 12 to adjust the large welding wheel 6 and the lower welding wheel to the correct position. The welding wheel grooves are aligned, and then the clamping bolt 13 is tightened. After tightening the clamping bolt 13, the limiting tooth ring 1902 in the main limiting part 19 on the clamping bolt 13 will engage with the limiting tooth groove 2101 in the upper limiting part 20 of the upper welding arm 7, thereby limiting the clamping bolt 13 and preventing the clamping bolt 13 from loosening due to vibration generated during welding of the steel bucket seam. This ensures the stability of the upper welding arm 7, that is, the stability of the front and rear position adjustment of the large welding wheel 6. Then, driven by the copper wire, the large welding wheel 6 and the lower welding wheel rotate. At the same time, the large welding wheel 6 also has a sprocket compensation drive from the main drive output. The large welding wheel 6 is subjected to the pressure of the pressure device above, which transmits the welding pressure to the tank body to be welded. The large welding wheel 6 and the lower welding wheel weld the tank body that enters the sizing gauge. The heat generated during welding is carried away by cooling water.

[0035] Secondly, with the coordinated cooperation of the inclined limiting tooth ring 1902 and the limiting tooth groove 2101, a single limiting can be achieved in the loosening direction of the clamping bolt 13, so it will not affect the tightening of the clamping bolt 13. Therefore, when the front and rear positions of the large welding wheel 6 are adjusted, the limiting structure 18 not only limits the clamping bolt 13 to prevent loosening, but also facilitates personnel to tighten the clamping bolt 13.

[0036] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A welding wheel mechanism of a steel drum automatic seam welder, characterized by, The upper welding arm (7) and the welding arm hinged seat (9) are arranged, the welding arm mounting rod (17) is arranged on the front side of the welding arm hinged seat (9), the upper welding arm (7) is arranged on the welding arm mounting rod (17), the limiting nut (12) is arranged on the rear side of the upper welding arm (7), the pressing bolt (13) is arranged on the front end of the welding arm mounting rod (17), the limiting structure (18) is arranged on the front end of the pressing bolt (13), the limiting structure (18) comprises a main limiting piece (19) and a secondary limiting piece (20), the main limiting piece (19) comprises a welding seat (1901) and a limiting gear ring (1902), the welding seat (1901) is arranged on the front end of the pressing bolt (13), the limiting gear ring (1902) is arranged on the welding seat (1901), the secondary limiting piece (20) comprises a limiting ring (21) and a mounting sleeve (22), the mounting sleeve (22) is arranged on the upper welding arm (7), the limiting ring (21) is sleeved on the mounting sleeve (22), and the limiting ring (21) is elastically connected with the mounting sleeve (22), the limiting ring (21) is provided with a limiting gear slot (2101) corresponding to the limiting gear ring (1902) on the side, away from the mounting sleeve (22), of the limiting ring (21), and the upper welding arm (7) is provided with the large welding wheel (6) on the end, away from the welding arm hinged seat (9), of the upper welding arm (7), and the wire guide wheel (5) is arranged above the large welding wheel (6), and the pressure adjusting structure (16) is arranged on the end of the large welding wheel (6). The limiting gear ring (1902) is arranged in an inclined manner, and the inclined direction of the limiting gear ring (1902) is consistent with the tightening direction of the pressing bolt (13), and the limiting gear slot (2101) is arranged in an inclined manner, and the inclined direction of the limiting gear slot (2101) is matched with the limiting gear ring (1902).

2. A welding wheel mechanism for an automatic welding seam machine for steel drums according to claim 1, characterized in that, The pressure adjusting structure (16) comprises a lifting handle (1), a pressure seat (2), a pressure adjusting nut (3) and a pressure spring (4), and the lifting handle (1), the pressure seat (2), the pressure adjusting nut (3) and the pressure spring (4) are sequentially arranged on the pressure device of the large welding wheel (6) from top to bottom.

3. A welding wheel mechanism for an automatic welding seam machine for steel drums according to claim 1, characterized in that, The hinged seat lower seat (15) is arranged on the bottom of the welding arm hinged seat (9), the hinged seat locking screws (10) are arranged between the four corners of the bottom of the welding arm hinged seat (9) and the hinged seat lower seat (15), the welding wheel parallel adjusting screws (11) are arranged on the four corners of the top of the welding arm hinged seat (9), and the adjusting screw rod (8) is arranged on one side of the hinged seat lower seat (15).

4. A welding wheel mechanism for an automatic welding seam machine for steel drums according to claim 1, characterized in that, The welding seat (1901) is composed of a hexagonal segment and a circular segment, the limiting gear ring (1902) is arranged on one side of the circular segment, and the circular segment is connected with the pressing bolt (13).

5. A roller mechanism for a steel drum automatic seam welder according to claim 1, wherein A plurality of groups of limiting blocks (2102) are equidistantly arranged inside the limiting ring (21), a limiting groove (2201) corresponding to the limiting block (2102) is formed on the periphery of the mounting sleeve (22), and the limiting block (2102) is located in the limiting groove (2201); the mounting sleeve (22) is provided with a mounting ring (2202) on the side away from the limiting ring (21), and a plurality of groups of mounting bolts (2203) are equidistantly arranged on the periphery of the mounting ring (2202).

6. A welding wheel mechanism for an automatic welding seam machine for steel drums according to claim 5, characterized in that, The limiting ring (21) is provided with an outwardly expanding ring (2103) on the side facing the mounting sleeve (22), and a plurality of groups of limiting springs (23) are circumferentially equidistantly arranged between the outwardly expanding ring (2103) and the mounting ring (2202).

7. A roller mechanism for a steel drum automatic seam welder according to claim 1, wherein The large welding wheel (6) is provided with a mercury water adding end cover (14) at the end.

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