Cover removing device for electrolytic aluminum tank

Abstract

The invention discloses a cover removing device for an electrolytic aluminum tank, and relates to the technical field of electrolytic aluminum tanks. Comprising a crown block cart, a crown block trolley is installed on the crown block cart, a connecting platform is fixedly connected to one side of the crown block trolley, a lifting mechanism is fixedly connected to the bottom of the connecting platform, a mechanical arm assembly is fixedly connected to the output end of the lifting mechanism, and a clamping assembly is fixedly connected to the output end of the mechanical arm assembly and used for clamping the electrolytic aluminum tank cover. The device further comprises a control assembly, the control assembly comprises a main control system, a first positioning assembly and a second positioning assembly, the first positioning assembly is arranged on the connecting platform, the second positioning assembly is arranged on the mechanical arm assembly, and the electrolytic aluminum tank cover is located in the shooting range on the moving path of the first positioning assembly and the second positioning assembly. The signal transmitting ends of the first positioning assembly and the second positioning assembly are electrically connected with the signal receiving end of the control system, and the signal transmitting end of the control system is electrically connected with the crown block trolley, the lifting mechanism and the mechanical arm assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrolytic aluminum tank, and particularly relates to a device for removing the cover of an electrolytic aluminum tank. BACKGROUND

[0002] The Hall-Héroult electrolysis method is generally used in the production of the electrolytic aluminum industry, and an openable heat preservation cover is arranged at the upper portion of an electrolytic tank to maintain the electrolysis temperature of about 950 DEG C in the tank and reduce heat loss. In daily production and maintenance, the cover needs to be frequently opened to complete the replacement of anodes, crust breaking, slag fishing and other operations. At present, domestic electrolytic aluminum enterprises almost entirely rely on manual operation to complete the cover removal operation: workers hold simple pry bars or lifting tools to move away and stack the heat preservation covers, each of which weighs dozens of kilograms and has a surface temperature of 200 DEG C to 300 DEG C, to a designated position in a high-temperature, strong magnetic field and fluoride dispersion environment. The traditional method has the following significant defects:

[0003] The surface temperature of the cover is far beyond the tolerance limit of the human body, and even if the workers wear high-temperature resistant protective clothing, they are difficult to approach for a long time; at the same time, the magnetic field strength in the electrolysis workshop is usually between 10 mT and 50 mT, and long-term exposure may cause potential harm to the nervous system and cardiovascular system of the workers; in addition, the number of covers of a single tank is large (20 to 40 for a large pre-baked tank), and the manual cover removal operation is low in efficiency and high in labor intensity, and even accidents such as slipping and collision may occur. SUMMARY

[0004] Therefore, the present application provides a device for removing the cover of an electrolytic aluminum tank to solve the problems in the above-mentioned technology.

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

[0006] A device for removing the cover of an electrolytic aluminum tank comprises a crown block, which is installed on the top of a factory building, a crown trolley is installed on the crown block, the crown trolley is slidably installed on the crown block through walking driven wheels, one side of the crown trolley is fixedly connected with a connecting platform, the bottom of the connecting platform is fixedly connected with a lifting mechanism, the output end of the lifting mechanism is fixedly connected with a mechanical arm assembly, the output end of the mechanical arm assembly is fixedly connected with a clamping assembly for clamping the cover of the electrolytic aluminum tank.

[0007] Further comprising a control assembly, the control assembly comprises a main control system, a first positioning assembly and a second positioning assembly, the first positioning assembly is arranged on the connecting platform, the second positioning assembly is arranged on the mechanical arm assembly, and the cover of the electrolytic aluminum tank is located in the shooting range on the moving path of the first positioning assembly and the second positioning assembly, the signal transmitting end of the first positioning assembly and the second positioning assembly is electrically connected with the signal receiving end of the control system, and the signal transmitting end of the control system is electrically connected with the crown trolley, the lifting mechanism and the mechanical arm assembly.

[0008] Optionally, the lifting mechanism comprises a fixed cylinder arranged in a vertical direction, a top of the fixed cylinder is fixedly connected to a bottom of the connecting platform, a bottom of the fixed cylinder is inserted and slidably connected with a lifting cylinder, an oil cylinder is arranged in the fixed cylinder for driving the lifting cylinder to lift, and the bottom of the lifting cylinder is fixedly connected with the mechanical arm assembly.

[0009] Optionally, the first positioning assembly coarsely positions the cover of the aluminum electrolysis cell, when the crane trolley moves to a position corresponding to the cover of the aluminum electrolysis cell, the crane trolley stops moving and the lifting mechanism starts to descend;

[0010] The second positioning assembly finely positions the cover of the aluminum electrolysis cell, when the lifting mechanism descends to a position corresponding to the cover of the aluminum electrolysis cell, the lifting mechanism stops descending and the mechanical arm assembly and the clamping assembly cooperate to complete the clamping action of the cover of the aluminum electrolysis cell.

[0011] Optionally, the first positioning assembly is a laser radar with a centimeter-level accuracy.

[0012] Optionally, the second positioning assembly is a 3D camera with a millimeter-level accuracy.

[0013] Optionally, the mechanical arm assembly is an ABB mechanical arm, a base of the mechanical arm assembly is fixedly connected to the bottom of the lifting cylinder, and a flange end of the mechanical arm assembly is fixedly connected with the clamping assembly.

[0014] Optionally, the clamping assembly comprises a pneumatic clamp jaw and two clamp tools, the pneumatic clamp jaw is fixedly connected to the flange end of the mechanical arm assembly, the two clamp tools are installed on the output end of the pneumatic clamp, the pneumatic clamp jaw drives the two clamp tools to approach or move away from each other, a clamping groove is arranged on one side of the two clamp tools approaching each other, and the two grooves are combined into a structure matching the clamping part of the cover of the aluminum electrolysis cell when the two clamp tools approach each other.

[0015] Optionally, a monitoring assembly is further included, the monitoring assembly is arranged at the bottom of the connecting platform, and the electrolytic cell is located within a shooting range on a path of the monitoring assembly, for remote monitoring and monitoring of coarse positioning.

[0016] Optionally, a fixed plate is arranged around the circumference of the fixed cylinder, the fixed plate is fixedly connected with the fixed cylinder, a placement groove is formed through the fixed plate, a limiting roller is arranged in the placement groove, an axial direction of the limiting roller is arranged in a horizontal direction, the limiting roller penetrates the side wall of the fixed cylinder, and the limiting roller is arranged tangentially to the side wall of the lifting cylinder.

[0017] Optionally, the flange end of the mechanical arm assembly is further fixedly connected with a protective box, the 3D camera is arranged in the protective box, and a shooting end of the 3D camera is arranged on the side of the clamping jaw tool, the protective box is provided with an opening on one side of the shooting end of the 3D camera, and a protective plate matched with the opening is arranged at the opening, the protective plate is hingedly arranged on the protective box, and a cylinder is arranged in the protective box, a fixed section of the cylinder is hingedly arranged on the protective box, and an output end of the protective box is hingedly arranged on the protective plate.

[0018] The present application has at least the following beneficial effects:

[0019] The present application has at least the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the prior art and the present application, the following will briefly introduce the drawings needed in the description of the prior art and the embodiments of the present application. Obviously, the drawings in the following description are only exemplary, and those skilled in the art can obtain other drawings from the provided drawings without creative labor.

[0021] The structures, proportions, sizes, etc. shown in the present specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the limiting conditions of the implementation of the present application. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0022] Figure 1 The structure diagram of the electrolytic aluminum tank positioning state (coarse positioning) of an embodiment of the present application;

[0023] Figure 2 The structure diagram of the electrolytic aluminum tank positioning state (fine positioning) of an embodiment of the present application;

[0024] Figure 3 Schematic diagram of the first perspective structure of the electrolytic aluminum cell in the cover-removing state according to an embodiment of the present invention;

[0025] Figure 4 Schematic diagram of the structure of the cover of the electrolytic aluminum cell in the moving state according to an embodiment of the present invention;

[0026] Figure 5 Schematic diagram of the second perspective structure of the electrolytic aluminum cell in the cover-removing state according to an embodiment of the present invention;

[0027] Figure 6 Schematic diagram of the third perspective structure of the cover-removing device according to an embodiment of the present invention;

[0028] Figure 7 It is Figure 6 Schematic diagram of the enlarged structure of part B in ;

[0029] Figure 8 It is Figure 6 Schematic diagram of the enlarged structure of part C in ;

[0030] Figure 9 Schematic diagram of the fourth perspective structure of the cover-removing device according to an embodiment of the present invention;

[0031] Figure 10 It is Figure 9 Schematic diagram of the sectional structure of the A-A part in ;

[0032] Figure 11 It is Figure 10 Schematic diagram of the enlarged structure of part D in .

[0033] Explanation of reference numerals:

[0034] 1, crane trolley; 2, crane carriage; 3, connecting platform; 4, robotic arm assembly; 5, cover of electrolytic aluminum cell; 6, first positioning component; 7, second positioning component; 8, fixed cylinder; 9, lifting cylinder; 10, pneumatic gripper; 11, gripper tool; 12, monitoring component; 13, fixing plate; 14, limiting roller; 15, protective box; 16, protective plate; 17, cylinder. Detailed implementation manners

[0035] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0036] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more. Terms such as "first", "second", "third", "fourth", etc. (if any) in the specification, claims and above-mentioned drawings of the present invention are intended to distinguish the objects being referred to. For a solution with a time sequence process, such a term expression does not necessarily need to be understood as describing a specific order or sequence. For a solution of a device structure, such a term expression does not distinguish the importance level, positional relationship, etc.

[0037] In addition, the terms "comprising", "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units that are clearly listed, but may also include other steps or units that are inherent to these processes, methods, products or devices although not clearly listed, or steps or units added by further optimization solutions based on the concept of the present invention.

[0038] As Figures 1-11 shown, an electrolytic aluminum cell cover removing device disclosed by the present invention includes a crane trolley 1, the crane trolley 1 is installed on the top inside the workshop, a crane car 2 is installed on the crane trolley 1, the crane car 2 is slidably installed on the crane trolley 1 through walking driven wheels, one side of the crane car 2 is fixedly connected with a connecting platform 3, the bottom of the connecting platform 3 is fixedly connected with a lifting mechanism, the output end of the lifting mechanism is fixedly connected with a robotic arm assembly 4, and the output end of the robotic arm assembly 4 is fixedly connected with a clamping assembly for clamping the cover 5 of the electrolytic aluminum cell;

[0039] It further includes a control component, the control component includes a main control system, a first positioning component 6, and a second positioning component 7. The first positioning component 6 is arranged on the connecting platform 3, the second positioning component 7 is arranged on the robotic arm assembly 4, and the cover 5 of the electrolytic aluminum cell is within the shooting range of the moving paths of the first positioning component 6 and the second positioning component 7. The signal transmitting ends of the first positioning component 6 and the second positioning component 7 are electrically connected to the signal receiving end of the control system, and the signal transmitting end of the control system is electrically connected to the crane car 2, the lifting mechanism and the robotic arm assembly 4.

[0040] In this embodiment, the above-mentioned crane trolley 1 is installed above the electrolytic aluminum cells in the electrolysis workshop and fixed on the workshop wall. The crane car 2 is slidably installed on the crane trolley 1 through walking driven wheels. The specific installation methods of the crane trolley 1 and the crane car 2 can be realized by existing technologies and will not be elaborated here;

[0041] The connecting platform 3 is arranged at a position corresponding to the electrolytic aluminum tank below the trolley 2, and moves with the trolley 2. The bottom of the connecting platform 3 is provided with a lifting mechanism, a mechanical arm assembly 4 and a clamping assembly, which are used to clamp and open the electrolytic aluminum tank cover 5. A first positioning assembly 6 is arranged on the connecting platform 3 and moves with the trolley 2 to position the trolley 2. The first positioning assembly 6 is arranged on the side facing the electrolytic aluminum tank and photographs the position of the electrolytic aluminum tank cover 5. When the first positioning assembly 6 is positioned at the electrolytic aluminum tank cover 5 to be opened, a control signal is fed back to the main control system, which controls the trolley 2 to stop moving and controls the lifting mechanism to drive the mechanical arm and the clamping assembly to approach the electrolytic aluminum tank cover 5 to be opened. A second positioning assembly 7 is arranged on the mechanical arm assembly 4 and is used to position the accurate position of the electrolytic aluminum tank cover 5. When the second positioning assembly 7 is positioned at the accurate position of the electrolytic aluminum tank cover 5 to be opened, a control signal is fed back to the main control system, which controls the mechanical arm assembly 4 to drive the clamping assembly to rotate to a suitable position, clamps the electrolytic aluminum tank cover 5, and then opens the electrolytic aluminum tank cover 5 through the operation of the mechanical arm and moves to another position. After the clamping assembly releases the electrolytic aluminum tank cover 5, the lifting mechanism is controlled to rise for other working procedures.

[0042] It should be noted that the specific implementation of the main control system for judging and outputting control signals to control the trolley 2, the lifting mechanism, the mechanical arm assembly 4 and the clamping assembly according to the signals collected by the first positioning assembly 6 and the second positioning assembly 7 belongs to the prior art, which will not be described here.

[0043] In a specific embodiment, the lifting mechanism includes a fixed cylinder 8 arranged in a vertical direction, the top of the fixed cylinder 8 is fixedly connected to the bottom of the connecting platform 3, the bottom of the fixed cylinder 8 is inserted and slidably connected with a lifting cylinder 9, an oil cylinder is arranged in the fixed cylinder 8 for driving the lifting cylinder 9 to lift, and the bottom of the lifting cylinder 9 is fixedly connected with the mechanical arm assembly 4.

[0044] In the lifting mechanism, the fixed cylinder 8 is fixed to the bottom of the connecting platform 3, the fixed cylinder 8 is arranged in a vertical direction, and the lifting cylinder 9 also slides in the fixed cylinder 8 in a vertical direction, which facilitates clamping the electrolytic aluminum tank cover 5. The oil cylinder is arranged in the fixed cylinder 8 for driving the lifting cylinder 9 to lift. The mechanical arm assembly 4 is fixedly installed at the bottom of the lifting cylinder 9, and the mechanical arm is driven by the lifting cylinder 9 to approach and move away from the electrolytic aluminum tank cover 5.

[0045] In a further embodiment, in order to improve the stability of the lifting mechanism, the circumferential side of the fixing cylinder 8 is provided with a fixing plate 13, the fixing plate 13 is fixedly connected with the fixing cylinder 8, a placing groove is formed through the fixing plate 13, a limiting roller 14 is arranged in the placing groove, the axial direction of the limiting roller 14 is arranged horizontally, and the limiting roller 14 penetrates the side wall of the fixing cylinder 8 and is arranged tangentially with the side wall of the lifting cylinder 9.

[0046] The fixing plate 13 is an annular structure matched with the outer wall of the fixing cylinder 8, the fixing plate 13 is sleeved and fixed on the outside of the fixing cylinder 8, at least two placing grooves penetrating the fixing plate 13 are formed on the circumferential side of the fixing plate 13, a limiting roller 14 is arranged in the placing groove, the axial direction of the limiting roller 14 is arranged horizontally, and the limiting roller 14 is rotatably connected with the fixing plate 13 through a rotating shaft, and meanwhile, the limiting roller 14 penetrates the side wall of the fixing cylinder 8 and is arranged tangentially with the outer side wall of the lifting cylinder 9, that is, the two are arranged tangentially, so as to limit the lifting of the lifting cylinder 9 and prevent the lifting cylinder 9 from shaking radially.

[0047] In a specific embodiment, the first positioning assembly 6 coarsely positions the electrolytic aluminum tank cover 5, when the crane trolley 2 moves to the position corresponding to the electrolytic aluminum tank cover 5, the crane trolley 2 stops moving and the lifting mechanism starts to descend.

[0048] The second positioning assembly 7 finely positions the electrolytic aluminum tank cover 5, when the lifting mechanism descends to the position corresponding to the electrolytic aluminum tank cover 5, the lifting mechanism stops descending, and the mechanical arm assembly and the clamping assembly cooperate to complete the clamping action of the electrolytic aluminum tank cover 5.

[0049] The first positioning assembly 6 can be a laser radar with a precision of centimeters, which can detect the position of the electrolytic aluminum tank cover 5 in real time, and feed back the collected information to the main control system to control the crane trolley 2 to be positioned above the electrolytic aluminum tank cover 5 to be opened. In addition, the specific installation positions of the first positioning assembly 6 and the second positioning assembly 7 are mainly determined according to the specific structure, which needs to ensure that the positions of the crane trolley 2 and the electrolytic aluminum tank can be positioned, and whether they are in an operable position can be determined.

[0050] The second positioning assembly 7 can be a 3D camera with a precision of millimeters, which can detect the position of the electrolytic aluminum tank cover 5 in real time, and feed back the collected information to the main control system to control the mechanical arm assembly 4 and the clamping assembly to complete the cover picking action.

[0051] In a specific embodiment, the mechanical arm assembly 4 is an ABB mechanical arm, the base of the mechanical arm assembly 4 is fixedly connected to the bottom of the lifting cylinder 9, and the flange end of the mechanical arm assembly 4 is fixedly connected to the clamping assembly.

[0052] The mechanical arm assembly 4 described above adopts an existing ABB mechanical arm, the base end of the ABB mechanical arm is fixedly installed at the bottom of the lifting cylinder 9, and the flange end of the ABB mechanical arm is fixedly installed with the clamping assembly.

[0053] The clamping assembly includes a pneumatic clamp jaw 10 and two clamp jaw tools 11, the pneumatic clamp jaw 10 is fixedly connected to the flange end of the mechanical arm assembly 4, the two clamp jaw tools 11 are installed at the output end of the pneumatic clamp, the pneumatic clamp jaw 10 drives the two clamp jaw tools 11 to approach or move away from each other, the side of the two clamp jaw tools 11 approaching each other is provided with a clamping groove, and the two recesses are combined into a structure matched with the clamping part of the electrolytic aluminum tank cover 5 to be clamped.

[0054] The pneumatic clamp jaw 10 described above is fixedly installed with the flange end of the ABB mechanical arm through a transition flange, the clamp jaw tool 11 is installed in the guide rail on the pneumatic clamp jaw 10, and is driven to approach or move away from each other by the internal air cylinder 17 to complete the clamping of the electrolytic aluminum tank cover 5, and the side of the clamp jaw tool 11 approaching each other is provided with a recess structure matched with the clamping part on the electrolytic aluminum tank cover 5, and the two clamp jaw tools 11 can fix the electrolytic aluminum tank cover 5 after buckling.

[0055] In another embodiment, a monitoring assembly 12 is further included, the monitoring assembly 12 is arranged at the bottom of the connecting platform 3, and the electrolytic tank is located in the shooting range of the monitoring assembly 12 on the path, for remote monitoring and coarse positioning monitoring.

[0056] The monitoring assembly 12 described above can be a 2D camera, for artificial remote monitoring and coarse positioning monitoring, and the monitoring assembly 12 can also be installed at other positions capable of observing the crown trolley 2 and the electrolytic aluminum tank according to installation requirements.

[0057] The flange end of the mechanical arm assembly 4 is further fixedly connected with a protection box 15, the 3D camera is arranged in the protection box 15, and the shooting end of the 3D camera is arranged on the side of the clamp jaw tool 11, an opening is arranged on the side of the shooting end of the 3D camera in the protection box 15, and a matched protection plate 16 is arranged at the opening, the protection plate 16 is hingedly arranged with the protection box 15, an air cylinder 17 is arranged in the protection box 15, the fixed section of the air cylinder 17 is hingedly arranged with the protection box 15, and the output end of the protection box 15 is hingedly arranged with the protection plate 16.

[0058] Workflow:

[0059] Manual instruction cover picking --- the cart moves to the designated electrolytic cell position --- the Y direction running car moves to the designated cover plate position through laser radar coarse positioning --- the lifting mechanism is lowered to the designated height --- the robot 3D camera fine positioning --- the robot picks up the cover plate and moves to other positions --- cover picking is completed, the lifting mechanism is raised --- after other process execution is completed --- the lifting mechanism is lowered --- the robot fine positioning picks up the cell cover plate --- the robot picks up the cell cover plate and loads it into the designated position --- the lifting mechanism is raised --- the robot returns to the original position.

[0060] The above several specific embodiments can be combined with each other, and for the same or similar concepts or processes, some embodiments can not be described again.

[0061] The technical features of the above embodiments can be combined in any manner (as long as the combination of the technical features does not contradict), in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered as the scope of the present disclosure.

[0062] The above has been described in detail through general description and specific embodiments. It should be noted that without departing from the concept of the present application, it is obvious that the specific embodiments can be deformed and improved, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. An apparatus for decapping an electrolytic aluminium cell, characterised in that: The utility model provides a kind of electrolytic aluminium tank cover's automatic clamping device, including crown block, the crown block is installed in the top of workshop, and crown block trolley is installed on the crown block, and crown block trolley is slidably connected with crown block by walking driven wheel, one side of the crown block trolley is fixedly connected with connecting platform, the bottom of the connecting platform is fixedly connected with lifting mechanism, the output of the lifting mechanism is fixedly connected with mechanical arm assembly, the output of the mechanical arm assembly is fixedly connected with clamping assembly, for clamping electrolytic aluminium tank cover; It also includes a control assembly, the control assembly includes a main control system, a first positioning assembly, a second positioning assembly, the first positioning assembly is arranged on the connecting platform, the second positioning assembly is arranged on the mechanical arm assembly, and the electrolytic aluminium tank cover is located in the shooting range on the moving path of the first positioning assembly and the second positioning assembly, the signal transmitting end of the first positioning assembly and the second positioning assembly is electrically connected with the signal receiving end of the control system, and the signal transmitting end of the control system is electrically connected with the crown block trolley, the lifting mechanism and the mechanical arm assembly.

2. An apparatus for decap of an aluminium electrolysis cell according to claim 1, characterized in that: The lifting mechanism includes a fixed cylinder arranged in the vertical direction, the top of the fixed cylinder is fixedly connected to the bottom of the connecting platform, the bottom of the fixed cylinder is inserted and slidably connected with a lifting cylinder, an oil cylinder is arranged in the fixed cylinder for driving the lifting cylinder to lift, and the bottom of the lifting cylinder is fixedly connected with the mechanical arm assembly.

3. An apparatus for decapping an aluminium electrolysis cell as claimed in claim 1, characterised in that: The first positioning assembly coarsely positions the electrolytic aluminium tank cover, when the crown block trolley moves to the position corresponding to the electrolytic aluminium tank cover, the crown block trolley stops moving and the lifting mechanism starts to descend; The second positioning assembly finely positions the electrolytic aluminium tank cover, when the lifting mechanism descends to the position corresponding to the electrolytic aluminium tank cover, the lifting mechanism stops descending and the mechanical arm assembly and the clamping assembly cooperate to complete the clamping action of the electrolytic aluminium tank cover.

4. The apparatus of claim 1, wherein: The first positioning assembly is a centimeter-level laser radar.

5. The apparatus of claim 1, wherein: The second positioning assembly is a millimeter-level 3D camera.

6. An apparatus for decapping an aluminum electrolysis cell as defined in claim 2, wherein: The mechanical arm assembly is an ABB mechanical arm, the base of the mechanical arm assembly is fixedly connected to the bottom of the lifting cylinder, and the flange end of the mechanical arm assembly is fixedly connected with the clamping assembly.

7. The apparatus of claim 1, wherein: The clamping assembly includes a pneumatic clamp jaw and two clamp tools, the pneumatic clamp jaw is fixedly connected to the flange end of the mechanical arm assembly, the two clamp tools are installed on the output end of the pneumatic clamp, the pneumatic clamp jaw drives the two clamp tools to approach or move away from each other, one side of the two clamp tools approaching each other is provided with a clamping groove, and the two grooves are combined into a structure that is adapted to the clamping part of the electrolytic aluminium tank cover to be clamped when the two clamp tools approach each other.

8. The apparatus of claim 1, wherein: It also includes a monitoring assembly, the monitoring assembly is arranged at the bottom of the connecting platform, and the electrolytic tank is located in the shooting range on the path of the monitoring assembly, for remote monitoring and monitoring of coarse positioning.

9. An apparatus for decap of an aluminium electrolysis cell according to claim 2, characterized in that: A fixed plate is arranged around the circumference of the fixed cylinder, the fixed plate is fixedly connected with the fixed cylinder, a placing groove is formed through the fixed plate, a limiting roller is arranged in the placing groove, the axial direction of the limiting roller is arranged in the horizontal direction, the limiting roller penetrates the side wall of the fixed cylinder, and the limiting roller is tangentially arranged with the side wall of the lifting cylinder.

10. The apparatus of claim 5, wherein: The flange end of the mechanical arm assembly is also fixedly connected with a protective box, the 3D camera is arranged in the protective box, and the shooting end of the 3D camera is arranged on the side of the clamping jaw tool, the protective box is arranged with an opening on one side of the shooting end of the 3D camera, and a matched protective plate is arranged at the opening, the protective plate is hingedly arranged with the protective box, a pneumatic cylinder is arranged in the protective box, a fixed section of the pneumatic cylinder is hingedly arranged with the protective box, and an output end of the protective box is hingedly arranged with the protective plate.

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