A continuous rotary welding system and method for electrolytic anode guide rods

Abstract

The present invention provides a continuous rotary welding system and method for electrolytic anode guide rods, comprising: maintaining a fixed anode guide rod in a vertical position using a positioning fixture; pressing the anode guide rod against the end face of an explosive welding block using a clamping device; rotating a combined welding work platform to weld a first weld between the anode guide rod and the end face of the explosive welding block; and pressing the anode guide rod against the end face of a steel claw body using a clamping device; rotating the combined welding work platform to weld a second weld between the anode guide rod and the end face of the steel claw body. The system and method achieve flexible application of the continuous rotary welding method for electrolytic anode guide rods, reduce anode resistivity, and address the problem of ineffective control of anode guide rod verticality, while also achieving the excellent effect of improving the welding efficiency of the anode guide rod to the end face of the steel claw body explosive welding block.

Description

Technical Field

[0001] The invention belongs to the field of electrolytic anode welding maintenance production, and in particular relates to an electrolytic anode guide rod continuous rotary welding system and method. Background Art

[0002] When the electrolytic anode guide rod used in large prebaked electrolytic cells is welded to the explosive welding block on the end face of the steel claw body crossbeam, it is difficult to tightly compact the guide rod end face and the explosive welding block on the end face of the steel claw body due to the weight of the anode guide rod, resulting in a large welding pressure drop between the anode guide rod and the steel claw body; after the anode is hoisted to the welding site, it is manually positioned, and after the verticality is measured and qualified, the guide rod end face and the explosive welding block on the end face of the steel claw body are welded. Due to the influence of vibration during the welding process, welding thermal deformation and other factors, the anode guide rod often becomes skewed after welding is completed; the guide rod and the steel claw body are relatively heavy, and the workpiece is inconvenient to move during the welding process. The welder needs to frequently change welding stations to complete the circumferential weld around the guide rod end face and the explosive welding block on the end face of the steel claw body, resulting in low welding efficiency. The existence of these problems has long plagued the electrolytic anode welding maintenance production. Summary of the Invention

[0003] In view of the above problems, the present invention provides the following technical solutions:

[0004] In one aspect, the present invention provides an electrolytic anode guide rod continuous rotary welding system, comprising:

[0005] Positioning tooling 10, clamping device 9, combined welding work platform;

[0006] The positioning tool 10 is arranged above the pressing device 9, and the pressing device 9 is arranged on the combined welding work platform.

[0007] Furthermore, the positioning fixture 10 includes a connecting plate 2, a first positioning fixture 11 and a second positioning fixture 12. The first positioning fixture 11 and the second positioning fixture 12 fix the anode guide rod 7 above the anode guide rod clamping device 9. The first positioning fixture 11 and the second positioning fixture 12 are connected through the connecting plate 2.

[0008] Furthermore, the pressing device 9 includes:

[0009] The jack 13, the clamping device base 18, the first clamping component, and the second clamping component are arranged on the clamping device base 18, and one end of the jack 13 is connected to the clamping device base 18, and the other end is connected to the side bracket 3.

[0010] Furthermore, the first clamping component and the second clamping component both include a guide rod clamping piece 16 and an adjustment mechanism. The guide rod clamping piece 16 is provided at one end of the adjustment mechanism, and the adjustment mechanism is rotatably connected to the pressing device base 18 .

[0011] Furthermore, through holes are provided on both sides of the clamping device base 18, and the adjustment mechanism includes a nut 17 and a bolt 19, wherein the nut 17 is concentrically arranged on the clamping device base 18 with the through hole, the bolt 19 is connected to the nut 17, and one end of the bolt 19 passes through the through hole and is connected to the anode guide rod clamping plate 16.

[0012] Furthermore, the combined welding work platform includes: a side bracket 3, a welding work platform 20, a welding work platform base 4, and a welding work platform ground base 8. The side bracket 3 is connected to one end of the welding work platform base 4, the welding work platform base 4 and the welding work platform ground base 8 are rotatably connected, and the welding work platform 20 is arranged on the welding work platform base 4.

[0013] Furthermore, the combined welding work platform also includes a rotating mechanism, and the welding work platform base 4 is rotatably connected to the welding work platform ground base 8 through the rotating mechanism.

[0014] Furthermore, the rotating mechanism includes a bearing 22 and a fixed shaft 21 . The bearing 22 is rotatably connected to the ground base 8 of the welding work platform. One end of the fixed shaft 21 is fixed to the welding work platform base 4 , and the other end is connected to the inner ring of the bearing 22 .

[0015] On the other hand, the present invention also provides a method for continuous rotary welding of an electrolytic anode guide rod, comprising:

[0016] The fixed anode guide rod 7 is kept vertically upright by the positioning tool 10, wherein the positioning tool 10 is arranged above the pressing device 9;

[0017] The anode guide rod 7 and the end surface of the explosive welding block 5 are pressed together by the pressing device 9, and the combined welding work platform is rotated to weld the first weld between the anode guide rod 7 and the end surface of the explosive welding block 5, wherein the pressing device 9 is provided on the combined welding work platform;

[0018] The anode guide rod 7 and the end surface of the steel claw body 6 are pressed together by the pressing device 9, and the combined welding work platform is rotated to weld the second weld between the anode guide rod 7 and the end surface of the steel claw body 6.

[0019] Furthermore, the first weld and the second weld are both spot continuous welds or intermittent welds.

[0020] Furthermore, the positioning tool 10 is used to keep the fixed anode guide rod 7 vertically upright, including:

[0021] The first positioning fixture 11 fixes the upper end of the anode guide rod 7, and the second positioning fixture 12 fixes the lower end of the anode guide rod 7, so that the anode guide rod 7 always remains vertical.

[0022] The continuous rotary welding method for electrolytic anode guide rods of the present invention realizes the flexible application of the continuous rotary welding method for electrolytic anode guide rods, reduces the anode resistivity, solves the problem that the verticality of the anode guide rod cannot be effectively controlled, and simultaneously achieves the good effect of improving the welding efficiency between the anode guide rod and the end face of the steel claw body explosion welding block.

[0023] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A flow chart of a method for continuous rotary welding of an electrolytic anode guide rod according to an embodiment of the present invention is shown;

[0026] Figure 2 A front view of the electrolysis anode guide rod positioning fixture and the welding platform in combination according to an embodiment of the present invention is shown;

[0027] Figure 3 A side view showing the combined use of an electrolysis anode guide rod positioning fixture and a welding platform according to an embodiment of the present invention is shown;

[0028] Figure 4 It shows a front view of the anode guide rod positioning fixture, the clamping device, and the welding platform assembly according to an embodiment of the present invention;

[0029] Figure 5 It shows a side view of the anode guide rod positioning fixture, the clamping device, and the welding platform assembly according to an embodiment of the present invention;

[0030] Figure 6 FIG. 4 shows a structural diagram of a pressing device according to an embodiment of the present invention.

[0031] In the figure, 11. First positioning fixture; 12. Second positioning fixture; 2. Connecting plate; 3. Side bracket; 4. Welding work platform base; 5. Explosive welding block; 6. Steel claw body; 7. Anode guide rod; 8. Ground base of welding work platform; 9. Clamping device; 10. Positioning tool; 13. Jack; 14. First jack; 15. Second jack; 16. Guide rod clamping plate; 17 Nut; 18. Clamping device base; 19. Bolt; 20. Welding work platform; 21. Fixed shaft; 22. Bearing. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0033] like Figure 1 As shown, a method for continuous rotary welding of electrolytic anode guide rods includes: maintaining a fixed anode guide rod 7 upright using a positioning fixture 10; pressing the anode guide rod 7 against the end face of the explosive welding block 5 using a clamping device, rotating the assembled work platform, and continuously welding the first weld seam with a girth weld; adjusting the clamping position of the clamping device 9, pressing the clamped anode guide rod 7 against the end face of the steel claw body 6 using the clamping device, and rotating the assembled work platform to continuously weld the second weld seam with a girth weld. The anode guide rod clamping device 9 is disposed between the anode guide rod 7 and the explosive welding block 5, and the anode guide rod 7 positioning fixture is connected to the top of the welding work platform 20.

[0034] In the prior art, the welding pressure drop between the anode guide rod 7 and the steel claw body 6 is relatively large. During the welding process, it is difficult to tightly compact the welding end face of the guide rod with the end faces of the steel claw body 6 and the explosion welding block 5. Therefore, the present invention utilizes the anode guide rod clamping device 9 to increase the clamping force between the welding end face of the anode guide rod 7 and the end face of the steel claw body 6 and the explosion welding block 5, thereby achieving a tight combination of the welding end face of the guide rod and the end face of the steel claw body 6 and the explosion welding block 5, and achieving the effect of reducing the anode resistivity.

[0035] Among them, the anode guide rod positioning fixture 10 includes a positioning fixture and a connecting plate 2. The anode guide rod 7 is fixed above the anode guide rod clamping device 9 by the positioning fixture. The positioning fixture is connected to the connecting plate 2, and the connecting plate 2 is connected to the side bracket 3. It should be noted that the positioning fixture includes a first positioning fixture 11 and a second positioning fixture 12. The first positioning fixture 11 and the second positioning fixture 12 are spaced apart on the connecting plate 2. In the prior art, the anode guide rod 7 is prone to deflection after welding. Therefore, the present invention uses the anode guide rod positioning fixture 10 to achieve vertical erection of the anode guide rod 7 throughout the welding process, solving the problem that the verticality of the anode guide rod 7 cannot be effectively controlled.

[0036] Among them, the combined production of the rotary welding work platform includes: integrating the guide rod positioning tooling and the steel claw body 6 bearing platform into a work platform, and adding a fixed shaft 12 at the bottom of the work platform; connecting the work platform base 4 with the work platform fixed shaft 12 to combine and produce the rotary welding work platform.

[0037] It should be noted that in the prior art, when welding the anode guide rod 7 and the end face of the steel claw body 6 explosion welding block 5, the welder needs to change the welding position multiple times to complete the welding of the circumferential weld seam around the end face of the guide rod and the end face of the steel claw body 6 explosion welding block 5, resulting in low work efficiency. Therefore, the present invention integrates the guide rod positioning tooling and the steel claw body 6 bearing platform into a workbench, installs a fixed shaft 12 at the bottom of the workbench, and connects the work platform fixed shaft 12 through welding the work platform base 4 to form a rotating welding work platform 20. During the welding process, it is only necessary to rotate the workbench to achieve continuous welding of the circumferential weld seam between the end face of the guide rod and the end face of the steel claw body 6 and the explosion welding block 5 without changing the work position.

[0038] It should be noted that the welding work platform 20 includes a welding work platform base 4, an explosive welding block 5, and a steel claw body 6, wherein the explosive welding block 5, the steel claw body 6 and the welding work platform base 4 are connected in sequence, and a welding work platform ground base 8 is connected below the welding work platform 20.

[0039] It should be noted that a continuous rotary welding system for electrolytic anode guide rods includes a positioning fixture 10, a clamping device 9, and a combined welding work platform 20. The positioning fixture 10 is used to secure the anode guide rod 7 in a vertical position; the clamping device 9 is used to compress the anode guide rod 7 against the steel claw 6 and the explosive welding block 5; and the combined welding work platform 20 is used to change the welding position. The positioning fixture module includes a positioning fixture, which secures the anode guide rod 7 above the anode guide rod clamping device 9.

[0040] The combined welding platform is constructed by integrating the guide rod positioning fixture and the steel claw body 6 support platform into a workbench, with a fixed shaft 21 installed at the bottom. The platform base 4 is welded to the platform fixed shaft 21, creating a rotating welding platform. This modular design allows for continuous circumferential welding of the guide rod end face and the explosive welding block 5 end face of the steel claw body 6 by simply rotating the workbench during welding, without requiring the operator to change positions.

[0041] like Figure 2 As shown, the anode guide rod positioning fixture 10 is connected to the top of the welding work platform, and a welding work platform ground base 8 is provided below the welding work platform 20. The anode guide rod positioning fixture 10 is used to ensure that the anode guide rod 7 remains vertically upright during the entire welding process.

[0042] like Figure 3 As shown, the anode guide rod positioning tool 10 includes a positioning fixture and a connecting plate 2, the welding work platform 20 includes a welding work platform base 4 and a side bracket 3, the positioning fixture is connected to the connecting plate 2, the connecting plate 2 is connected to the side bracket 3, and the side bracket 3 is connected to the left end of the welding work platform base 4, wherein the positioning fixture includes a first positioning fixture 11 and a second positioning fixture 12, and the first positioning fixture 11 and the second positioning fixture 12 are arranged at intervals on the connecting plate 2.

[0043] like Figure 4 As shown, the anode guide rod positioning fixture 10 is connected to the upper side bracket 3 and is arranged above the welding platform. The anode guide rod clamping device 9 is connected to the bottom end of the anode guide rod 7. The combination of the anode guide rod positioning fixture 10, the anode guide rod clamping device 9 and the welding platform ensures that the welding end face of the guide rod is tightly bonded to the steel claw body 6 and the end face of the explosive welding block 5. At the same time, the anode resistivity is reduced, and the anode guide rod 7 is kept vertically upright throughout the welding process, thereby improving the efficiency of the continuous rotary welding of the anode guide rod 7.

[0044] The combined welding work platform includes: a side bracket, a welding work platform, a welding work platform base, and a welding work platform ground base. The side bracket is connected to one end of the welding work platform base. The welding work platform base and the welding work platform ground base are rotatably connected. The welding work platform is set on the welding work platform base.

[0045] The combined welding work platform further includes a rotating mechanism, and the welding work platform base is rotatably connected to the welding work platform ground base via the rotating mechanism.

[0046] Among them, the rotating mechanism includes a bearing and a fixed shaft. The bearing is rotatably connected to the ground base of the welding work platform. One end of the fixed shaft is fixed to the base of the welding work platform, and the other end is connected to the inner ring of the bearing.

[0047] like Figure 5 As shown, the welding platform also includes: an explosive welding block 5, a steel claw body 6, and an anode guide rod 7. Among them, the explosive welding block 5 is connected to the bottom of the anode guide rod clamping device 9, the steel claw body 6 is connected to the upper end of the welding work platform base 4 below the explosive welding block 5, and the welding work platform base 4 is set below the steel claw body 6. The anode guide rod 7 is fixed above the anode guide rod clamping device 9 by a first positioning fixture 11 and a second positioning fixture 12.

[0048] It should be noted that the anode guide rod rotary welding first uses the clamping device 9 to achieve close compaction between the anode guide rod 7 and the explosive welding block 5, and then welds. At the same time, the anode guide rod positioning tool 10 is used to ensure that the anode guide rod 7 remains vertically upright during the welding process. Then, the rotary welding work platform is used to rotate the work platform and adjust the clamping device 9. The clamping device 9 is used to achieve close compaction between the anode guide rod 7 and the steel claw body 6.

[0049] It's important to note that steel claws are crucial conductive components in the electrolytic aluminum industry. Available in three-, four-, six-, and eight-claw configurations, they form the anode guide rod assembly along with the aluminum guide rod and anode carbon block. The specialized use of steel claws places stringent requirements on the center-to-center distance between the claws. Six- and eight-claw configurations, however, present significant challenges in controlling this distance due to their large number and two-dimensional nature. Exceeding this standard often leads to increased handling costs and, in severe cases, scrapping, directly impacting the company's profitability.

[0050] It should be noted that the explosive welding block 5, also known as a reinforced explosive welding block, anode explosive welding block, or steel-aluminum explosive welding block, is a metal composite material produced using explosive welding. As a new welding process, explosive welding combines pressure welding, fusion welding, and diffusion welding. It can weld together metals with significantly different strengths, different expansion coefficients, and incompatible properties. This conserves precious metals and facilitates the rational combination and matching of the properties of the composite and base materials. It is widely used in the electrolytic aluminum and metallurgical industries.

[0051] like Figure 6 As shown, the clamping device 9 includes: a jack 13, a clamping device base 18, a first clamping component, and a second clamping component, wherein the first clamping component and the second clamping component are relatively arranged on the clamping device base 18, and one end of the jack 13 is connected to the clamping device base 18, and the other end is connected to the side bracket 3.

[0052] The first clamping component and the second clamping component both include a guide rod clamping piece 16 and an adjustment mechanism. The guide rod clamping piece 16 is provided at one end of the adjustment mechanism, and the adjustment mechanism is rotatably connected to the pressing device base 18 .

[0053] Among them, through holes are provided on both sides of the clamping device base 18, and the adjustment mechanism includes a nut 17 and a bolt 19, wherein the nut 17 is concentrically arranged on the clamping device base 18 with the through hole, the bolt 19 is threadedly connected to the nut 17, and one end of the bolt 19 passes through the through hole and is connected to the anode guide rod clamping plate 16.

[0054] The jacks 13 include a first jack 14 and a second jack 15 , and the first jack 14 and the second jack 15 are arranged oppositely on the pressing device base 5 .

[0055] It should be noted that the anode guide rod is a new type that allows for easy replacement of steel columns. Furthermore, cracks in the weld between the steel column and the steel claw base can be repaired or re-welded. This saves material for the explosive weld block and reduces the heat exposure to the explosive weld block during the welding operation. Due to long service life, transportation, and outdoor storage, all anode guide rods have varying degrees of bending and rust. Some anode guide rods also suffer from defects such as cracked explosive weld blocks, cracked steel claws, rotten claws, and fallen claws. These anode guide rods cannot be used in electrolysis without repair.

[0056] The present invention flexibly utilizes the continuous rotary welding method of the electrolytic anode guide rod by designing and manufacturing an anode clamping device 9, designing and using an anode guide rod positioning tool 10, and combining and manufacturing a rotary welding work platform, thereby achieving the good effects of reducing the anode resistivity and closely combining the welding end face of the guide rod with the end faces of the steel claw body 6 and the explosive welding block 5, solving the problem of the inability to effectively control the verticality of the anode guide rod, and improving the welding efficiency of the anode guide rod with the end faces of the steel claw body 6 and the explosive welding block 5.

[0057] It should be noted that the terms "first", "second" etc. in this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the application described herein. In this application, the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "center", "vertical", "horizontal", "lateral", "longitudinal" etc. are based on the directions or positional relationships shown in the accompanying drawings.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrolytic anode guide rod continuous rotary welding system, characterized in that: include: Positioning tool (10), pressing device (9), combined welding work platform; Wherein, the positioning tool (10) is arranged above the pressing device (9), and the pressing device (9) is arranged on the combined welding work platform, and the pressing device (9) includes: A jack (13), a pressing device base (18), a first clamping component, and a second clamping component, wherein the first clamping component and the second clamping component are arranged on the pressing device base (18), one end of the jack (13) is connected to the pressing device base (18), and the other end is connected to the side bracket (3); the first clamping component and the second clamping component both include a guide rod clamping piece (16) and an adjustment mechanism, the guide rod clamping piece (16) is arranged at one end of the adjustment mechanism, and the adjustment mechanism is rotatably connected to the pressing device base (18); through holes are provided on both sides of the pressing device base (18), and the adjustment mechanism includes a nut (17) and a bolt (19), wherein the nut (17) is concentrically arranged on the pressing device base (18), the bolt (19) is connected to the nut (17), and one end of the bolt (19) passes through the through hole and is connected to the anode guide rod clamping piece (16); The positioning fixture (10) comprises a connecting plate (2), a first positioning fixture (11) and a second positioning fixture (12). The first positioning fixture (11) and the second positioning fixture (12) fix the anode guide rod (7) above the anode guide rod pressing device (9). The first positioning fixture (11) and the second positioning fixture (12) are connected via the connecting plate (2).

2. The electrolytic anode guide rod continuous rotary welding system according to claim 1, wherein: The combined welding work platform comprises: a side bracket (3), a welding work platform (20), a welding work platform base (4), and a welding work platform ground base (8); the side bracket (3) is connected to one end of the welding work platform base (4); the welding work platform base (4) and the welding work platform ground base (8) are rotatably connected; and the welding work platform (20) is arranged on the welding work platform base (4).

3. The electrolytic anode guide rod continuous rotary welding system according to claim 2, wherein: The combined welding work platform also includes a rotating mechanism, and the welding work platform base (4) is rotatably connected to the welding work platform ground base (8) via the rotating mechanism.

4. The electrolytic anode guide rod continuous rotary welding system according to claim 3, wherein: The rotating mechanism comprises a bearing (22) and a fixed shaft (21), wherein the bearing (22) is rotatably connected to the ground base (8) of the welding work platform, and one end of the fixed shaft (21) is fixed to the welding work platform base (4), and the other end is connected to the inner ring of the bearing (22).

5. A continuous rotary welding method for electrolytic anode guide rods, characterized in that: include: The anode guide rod (7) is kept vertically upright by a positioning fixture (10), wherein the positioning fixture (10) is arranged above the pressing device (9), and the positioning fixture (10) comprises a connecting plate (2), a first positioning fixture (11) and a second positioning fixture (12), wherein the first positioning fixture (11) and the second positioning fixture (12) fix the anode guide rod (7) above the anode guide rod pressing device (9), and the first positioning fixture (11) and the second positioning fixture (12) are connected via the connecting plate (2); The anode guide rod (7) and the end surface of the explosive welding block (5) are pressed together by a pressing device (9), and the combined welding work platform is rotated to weld the first weld seam between the anode guide rod (7) and the end surface of the explosive welding block (5), wherein the pressing device (9) is arranged on the combined welding work platform; The anode guide rod (7) and the end surface of the steel claw body (6) are pressed together by a pressing device (9), and the combined welding work platform is rotated to weld the second weld seam between the anode guide rod (7) and the end surface of the steel claw body (6). The pressing device (9) includes: A jack (13), a clamping device base (18), a first clamping component, and a second clamping component, wherein the first clamping component and the second clamping component are arranged on the clamping device base (18), one end of the jack (13) is connected to the clamping device base (18), and the other end is connected to the side bracket (3); the first clamping component and the second clamping component both include a guide rod clamping piece (16) and an adjustment mechanism, the guide rod clamping piece (16) is arranged at one end of the adjustment mechanism, and the adjustment mechanism is rotatably connected to the clamping device base (18); through holes are provided on both sides of the clamping device base (18), and the adjustment mechanism includes a nut (17) and a bolt (19), wherein the nut (17) is concentrically arranged on the clamping device base (18), the bolt (19) is connected to the nut (17), and one end of the bolt (19) passes through the through hole and is connected to the anode guide rod clamping piece (16).

6. A method for continuous rotary welding of electrolytic anode guide rods according to claim 5, wherein: The first weld and the second weld are both spot continuous welds or intermittent welds.

7. A method for continuous rotary welding of electrolytic anode guide rods according to claim 6, wherein: The method of keeping the fixed anode guide rod (7) vertically upright by using the positioning fixture (10) includes: The first positioning fixture (11) fixes the upper end of the anode guide rod (7), and the second positioning fixture (12) fixes the lower end of the anode guide rod (7), so that the anode guide rod (7) always remains vertically upright.

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