An auxiliary tool for inner cover assembly welding

Abstract

The application relates to the technical field of cylinder processing, and provides an auxiliary tool for inner cover assembling and welding, which provides anti-deviation fixing for the assembling and welding of the upper cylinder and the lower cylinder of the inner cover; the auxiliary tool comprises a bearing base, a supporting structure, a driving piece, a main shaft structure, a lifting structure, a moving hinged frame, a fixed hinged frame and an opening and closing structure; the supporting structure is connected with the mounting platform; the bearing base is provided with a plurality of bearing bases which are arranged at intervals in the circumferential direction at a preset angle around the supporting structure, and the lower cylinder is placed on the bearing bases; the main shaft structure is detachably connected with the supporting structure; the driving piece is installed at the bottom of the main shaft structure; the lifting structure is sleeved on the main shaft structure and connected with the driving end of the driving piece; the opening and closing structure, the moving hinged frame and the fixed hinged frame are provided with a plurality of hinged frames which are consistent in number; the moving hinged frame is arranged along the circumferential direction of the lifting structure, and the fixed hinged frame is arranged along the circumferential direction of the top of the main shaft structure. The application has the effect of ensuring that the lower cylinder and the upper cylinder are on the same axis.

Description

Technical Field

[0001] This application relates to the field of cylinder processing technology, and in particular to an auxiliary tooling for assembling and welding inner covers. Background Technology

[0002] The annular annealing furnace is an advanced piece of equipment for high-temperature annealing of steel plates. It is currently widely used in the production of grain-oriented silicon steel. The inner shroud is a key piece of equipment. Its main function is to isolate the atmosphere that the steel coil comes into contact with from the oxidizing atmosphere in the furnace during the annealing process and to introduce a protective atmosphere (such as a nitrogen-hydrogen mixture) to prevent the steel coil from being oxidized during the annealing process, thus achieving bright annealing. At the same time, it prevents hydrogen leakage from causing deflagration accidents and ensures production safety.

[0003] A typical inner cover mainly consists of an end cap, an upper cylinder, and a lower cylinder. The end cap is located at the top of the inner cover and is used to seal it. The upper and lower cylinders together form the main structure of the inner cover. Due to its large size, the inner cover requires a crane during production or assembly welding. Manually using a crane to align the upper and lower cylinders results in significant errors, often leading to axial misalignment. This makes it impossible to guarantee accurate alignment between the lower and upper cylinders, resulting in inaccurate welds. Summary of the Invention

[0004] To address the aforementioned issues, this application provides an auxiliary tooling for assembling and welding inner covers.

[0005] The auxiliary tooling for assembling and welding inner covers provided in this application adopts the following technical solution: An auxiliary tooling for assembling and welding an inner cover provides anti-deviation fixing for the assembly and welding of the upper and lower cylinders of the inner cover; it includes a receiving base, a support structure, a drive component, a main shaft structure, a lifting structure, a movable hinge frame, a fixed hinge frame, and an opening and closing structure; the support structure is externally connected to an installation platform; several receiving bases are provided, spaced at preset angles around the support structure in the circumferential direction; the lower cylinder is placed on several receiving bases; the main shaft structure is detachably connected to the support structure; the drive component is installed at the bottom of the main shaft structure; the lifting structure is sleeved on the main shaft structure and connected to the drive end of the drive component; several opening and closing structures, movable hinge frames, and fixed hinge frames are provided in equal numbers; the movable hinge frames are arranged along the circumferential direction of the lifting structure, and the fixed hinge frames are arranged along the circumferential direction of the top of the main shaft structure; one end of the opening and closing structure is hinged to the fixed hinge frame, and the other end is hinged to the movable hinge frame; when the drive component drives the lifting structure to rise and fall along the main shaft structure, it drives the opening and closing structure to open and close, so that the opening and closing structure abuts against the upper and lower cylinders.

[0006] By adopting the above technical solution, the lower cylinder is placed on the receiving base. When the driving component drives the lifting structure to rise along the main shaft structure, the opening and closing structure is pushed by the moving hinge frame and fixed by the fixed hinge frame, causing the opening and closing structure to open and close, so that the opening and closing structure abuts against the inner wall surface of the lower cylinder. When the axis of the lower cylinder is not accurate, the offset position can be moved by the opening and closing structure to make the axis of the lower cylinder accurate. Then the driving component drives the lifting structure to descend, thereby retracting the opening and closing structure. After the upper cylinder is placed, the same correction is performed by unfolding the opening and closing structure to ensure that the lower cylinder and the upper cylinder are on the same axis, so that the welding point is accurate.

[0007] Optionally, the support structure is a cylindrical body with internal threads on its inner wall; the bottom of the main shaft structure has external threads, so that the main shaft structure is screwed to the support structure.

[0008] By adopting the above technical solution, the main shaft structure is rotated to raise and lower along the support structure, thereby adjusting the height of the main shaft structure to adapt to the lower or upper cylinder of different heights.

[0009] Optionally, an adjustment component is provided at the bottom of the spindle structure, which is used to rotate the spindle structure.

[0010] By adopting the above technical solution, the spindle structure is rotated using the adjusting component as a fulcrum, allowing the spindle structure to rise and fall along the supporting structure, thereby ensuring stable control of the spindle structure height.

[0011] Optionally, the opening and closing structure includes a first opening and closing frame, a second opening and closing frame, a hinge shaft, an upper cylinder correction part, and a lower cylinder correction part; the first opening and closing frame is hinged to the movable hinge frame, and the second opening and closing frame is hinged to the fixed hinge frame; the first opening and closing frame and the second opening and closing frame are hinged through the hinge shaft; the upper cylinder correction part is connected to the first opening and closing frame, and the lower cylinder correction part is connected to the second opening and closing frame.

[0012] By adopting the above technical solution, during the process of the lifting structure being driven to rise and fall along the main shaft structure by the driving component, the lifting structure drives the first opening and closing frame to unfold through the moving hinge frame, and simultaneously drives the second opening and closing frame to unfold in coordination with the hinge shaft. This allows the lower cylinder correction part to push and correct the lower cylinder body, making the axis of the lower cylinder body the same as the support structure. The upper cylinder correction part pushes and corrects the upper cylinder body, making the axis of the upper cylinder body consistent with the axis of the lower cylinder body.

[0013] Optionally, the upper cylinder correction section and the lower cylinder correction section have the same structure, both being arc-shaped anti-deviation plates.

[0014] By adopting the above technical solution, the arc-shaped anti-deviation plate can fit the arc-shaped inner wall of the upper or lower cylinder, thereby ensuring a larger contact area and a more obvious pushing effect when pushing to correct deviation, thus improving the accuracy of offset reset.

[0015] Optionally, the upper cylinder correction section and the lower cylinder correction section are provided with thickened plates on the side away from the main shaft structure.

[0016] By adopting the above technical solution, the thickened plate contacts the upper or lower cylinder, which increases the contact area between the thickened plate and the upper or lower cylinder. This ensures that when the upper or lower cylinder contacts the thickened plate, there is a sufficiently large contact area, and the force is distributed to the thickened plate, thus avoiding indentations when the thickened plate contacts the upper or lower cylinder.

[0017] Optionally, the curved surfaces of both the upper and lower cylinder correction sections are provided with semi-circular chamfers.

[0018] By adopting the above technical solution, both the upper cylinder correction part and the lower cylinder correction part can be attached to the inner wall surface of the upper cylinder and the lower cylinder through a semi-circular chamfer, so as to adapt to the size of the upper cylinder or the lower cylinder.

[0019] Optionally, the lower cylinder correction part also includes a first anti-deviation plate, a second anti-deviation plate, and a connecting frame; the first anti-deviation plate and the second anti-deviation plate are connected in the vertical direction through the connecting frame, and the connecting frame is connected to the second opening and closing frame; the first anti-deviation plate is located above the lower cylinder and the second anti-deviation plate is located below the upper cylinder.

[0020] By adopting the above technical solution, when the upper cylinder needs to be pushed and corrected, the second anti-deviation plate abuts against the lower inner wall surface of the upper cylinder, and the upper cylinder correction part abuts against the upper inner wall surface of the upper cylinder. By pushing synchronously at both ends, the upper cylinder is guaranteed to be more stable under force and can be pushed to a position consistent with the axis of the lower cylinder.

[0021] Optionally, the receiving base includes a fixed base and a movable base; the fixed base is larger than the movable base, and the movable base moves on top of the fixed base; the bottom of the movable base is provided with a rolling part, and the rolling part contacts the fixed base; the bottom of the movable base is provided with a clamping member, which, when activated, replaces the contact between the rolling part and the fixed base.

[0022] By adopting the above technical solution, the friction between the moving seat and the fixed seat is reduced by the rolling part, which facilitates the movement of the lower cylinder. After the lower cylinder is pushed to the designated axis, it is pressed against the fixed seat by the clamping part, which replaces the contact connection between the rolling part and the fixed part, thereby increasing the friction between the moving seat and the fixed seat and ensuring the stability of the lower cylinder.

[0023] Optionally, the rolling part is located in the middle of the clamping part, and when the clamping part is activated, the clamping end moves towards the fixed seat and clamps against the fixed seat; the lower cylinder correction part is equipped with a sensor, which is electrically connected to the clamping part. When all sensors synchronously send electrical signals to the clamping part, the clamping part is activated.

[0024] By adopting the above technical solution, the clamping component is activated after receiving electrical signals or control commands from all sensors, causing the moving seat to rise and replace the rolling part in contact with the fixed seat, thereby enabling the lower cylinder to be in a stable position.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. Place the lower cylinder on the receiving base. When the driving component drives the lifting structure to rise along the main shaft structure, the opening and closing structure is pushed by the moving hinge frame and fixed by the fixed hinge frame, causing the opening and closing structure to open and close, so that the opening and closing structure abuts against the inner wall of the lower cylinder. If the axis of the lower cylinder is not accurate, the offset position can be moved by the opening and closing structure to make the axis of the lower cylinder accurate. Then the driving component drives the lifting structure to descend, thereby retracting the opening and closing structure. After the upper cylinder is placed, the same correction is performed by unfolding the opening and closing structure to ensure that the lower cylinder and the upper cylinder are on the same axis, so that the welding point is accurate. 2. By rotating the main shaft structure, the main shaft structure can be raised and lowered along the support structure, thereby adjusting the height of the main shaft structure to adapt to the lower or upper cylinder of different heights. 3. By using the adjusting component as a fulcrum, the spindle structure is rotated, allowing the spindle structure to rise and fall along the support structure, thereby ensuring stable control of the spindle structure height. 4. During the process of the lifting structure being driven to move up and down along the main shaft structure by the driving component, the lifting structure drives the first opening and closing frame to unfold through the moving hinge frame, and simultaneously drives the second opening and closing frame to unfold in coordination with the hinge shaft. This causes the lower cylinder correction part to push and correct the lower cylinder body, so that the axis of the lower cylinder body is the same as the support structure. The upper cylinder correction part pushes and corrects the upper cylinder body, so that the axis of the upper cylinder body is consistent with the axis of the lower cylinder body. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the inner cover and auxiliary tooling in some embodiments of this application; Figure 2 This is a three-dimensional structural schematic diagram of the auxiliary tooling in some embodiments of this application; Figure 3 This is a partial three-dimensional structural schematic diagram of the auxiliary tooling in some embodiments of this application; Figure 4 This is a three-dimensional structural schematic diagram of the lower cylinder correction section in some embodiments of this application; Figure 5 This is a three-dimensional structural diagram of the base in some embodiments of this application; The labels in the attached diagram are as follows: 1. Inner cover; 11. Upper cylinder; 12. Lower cylinder; 13. End cap; 2. Support base; 21. Fixed seat; 22. Moving seat; 23. Rolling part; 24. Clamping part; 3. Support structure; 4. Driving part; 5. Main shaft structure; 51. Adjusting part; 6. Lifting structure; 7. Moving hinge frame; 8. Fixed hinge frame; 9. Opening and closing structure; 91. First opening and closing frame; 92. Second opening and closing frame; 93. Hinge shaft; 94. Upper cylinder correction part; 95. Lower cylinder correction part; 951. First anti-deviation plate; 952. Second anti-deviation plate; 953. Connecting frame. Detailed Implementation

[0027] The following specific examples illustrate the implementation methods of this application. Those skilled in the art can easily understand other advantages and effects of this application from the information disclosed herein. This application can also be implemented or applied through other different specific embodiments, and various details in this application can be modified or changed according to different viewpoints and application systems without departing from the spirit of this application. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0028] The embodiments of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily implement the application. This application may be embodied in many different forms and is not limited to the embodiments described herein.

[0029] In this application, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics represented in connection with that embodiment or example, which are included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate different embodiments or examples represented in this application, as well as features of different embodiments or examples.

[0030] Furthermore, the terms "first" and "second" are used only to indicate an objective and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the representation of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] Throughout this specification, when it is said that a device is "connected" to another device, this includes not only "direct connection" but also "indirect connection" by placing other components in between. Furthermore, when it is said that a device "comprises" a certain constituent element, unless otherwise stated otherwise, this does not exclude other constituent elements, but rather implies that other constituent elements may be included.

[0032] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.

[0033] This application discloses an auxiliary tooling for assembling and welding inner covers.

[0034] An auxiliary tooling for assembling and welding an inner cover 1 is provided. The inner cover 1 includes an upper cylinder 11, a lower cylinder 12, and a head 13. When assembling or fitting the inner cover 1, the upper cylinder 11 and the lower cylinder 12 need to be accurately aligned. Therefore, the auxiliary tooling of this application mainly provides anti-deviation fixing for the assembly or welding of the upper cylinder 11 and the lower cylinder 12 of the inner cover 1.

[0035] refer to Figure 1 As shown, it includes a base 2, a support structure 3, a drive component 4, a spindle structure 5, a lifting structure 6, a movable hinge frame 7, a fixed hinge frame 8, an opening and closing structure 9, and a limiting component; the support structure 3 is externally connected to the installation platform, which can be a ground, a workbench, a work plate, or other platform, and the support structure 3 can be installed by a fixed connection method such as welding.

[0036] Several receiving bases 2 are provided, and are set at preset angles in the circumferential direction with the support structure 3 as the axis. The lower cylinder 12 is placed on several receiving bases 2. In this embodiment, four receiving bases 2 are provided, which are arranged in a cross shape with the support structure 3 as the axis. The lower cylinder 12 is placed on the four receiving bases 2, and the receiving bases 2 provide support and placement for the lower cylinder 12.

[0037] The spindle structure 5 is detachably connected to the support structure 3. The drive component 4 is installed at the bottom of the spindle structure 5. The spindle structure 5 is the skeleton of the overall auxiliary tooling. The detachable connection between the spindle structure 5 and the support structure 3 allows the spindle structure 5 to be disassembled from the support structure 3 for maintenance or replacement. The drive component 4 can be a hollow hydraulic jack or a drive cylinder.

[0038] The lifting structure 6 is sleeved on the main shaft structure 5 and connected to the drive end of the drive component 4. The lifting structure 6 can be a lifting sleeve. The lifting structure 6 is sleeved on the main shaft structure 5 so that it can move up and down along the main shaft structure 5. At the same time, the drive component 4 can drive the lifting structure 6 to move up and down along the main shaft structure 5 and adjust the position of the lifting structure 6 on the main shaft structure 5.

[0039] The opening and closing structure 9, the movable hinge frame 7, and the fixed hinge frame 8 are all provided in several and the number is the same. The movable hinge frame 7 and the fixed hinge frame 8 have the same structure, the difference is that the installation position is different. The movable hinge frame 7 is set along the circumference of the lifting structure 6, while the fixed hinge frame 8 is set along the circumference of the top of the main shaft structure 5. That is, the position of the fixed hinge frame 8 is fixed at the top of the main shaft structure 5, while the position of the movable hinge frame 7 can be adjusted by moving the lifting structure 6 along the main shaft structure 5.

[0040] The specific number of the opening and closing structure 9, the movable hinge frame 7, and the fixed hinge frame 8 is not limited. In this embodiment, four are used as an example.

[0041] One end of the opening and closing structure 9 is hinged to the fixed hinge frame 8, and the other end is hinged to the movable hinge frame 7, so that when the movable hinge frame 7 moves with the lifting structure 6, it pushes the opening and closing structure 9 to unfold or retract, thereby adjusting the overall state of the opening and closing structure 9.

[0042] Specifically, when the lower cylinder 12 is placed on the receiving base 2, and the driving component 4 drives the lifting structure 6 to rise along the main shaft structure 5, the opening and closing structure 9 is pushed by the moving hinge frame 7 and fixed by the fixed hinge frame 8, causing the opening and closing structure 9 to open and close, so that the opening and closing structure 9 abuts against the inner wall surface of the lower cylinder 12. When the axis of the lower cylinder 12 is not accurate, the offset position can be slightly moved by the opening and closing structure 9, so that the axis of the lower cylinder 12 is accurate. Then the driving component 4 drives the lifting structure 6 to descend, thereby retracting the opening and closing structure 9. After the upper cylinder 11 is placed, the same correction is performed by unfolding the opening and closing structure 9 to ensure that the lower cylinder 12 and the upper cylinder 11 are on the same axis, so that the welding point is accurate.

[0043] Furthermore, the support structure 3 is a cylindrical body with internal threads on its inner wall. The connection point between the bottom and the mounting plane can be reinforced as needed. The bottom of the main shaft structure 5 has external threads, so that the main shaft structure 5 is screwed to the support structure 3. By rotating the main shaft structure 5, the main shaft structure 5 can be raised and lowered along the support structure 3, thereby adjusting the height of the main shaft structure 5 to adapt to the lower cylinder 12 or upper cylinder 11 of different heights.

[0044] Furthermore, refer to Figure 2 As shown, the spindle structure 5 is provided with an adjusting component 51 at the bottom. The spindle structure 5 can be rotated by adjusting component 51. Adjusting component 51 can be an adjusting rod or an adjusting frame. The worker uses adjusting component 51 as a fulcrum to rotate the spindle structure 5, so that the spindle structure 5 can be raised and lowered along the support structure 3 to ensure stable control of the height of the spindle structure 5.

[0045] Among them, the drive component 4 can abut against the adjustment component 51. When the drive component 4 is installed on the main shaft structure 5, it pushes the lifting structure 6 to move up and down along the main shaft structure 5. It will also be affected by the reaction force. Therefore, by abutting against the adjustment component 51, the adjustment component 51 can provide a portion of the load-bearing capacity of the reaction force, thereby improving the stability of the drive component 4 installation.

[0046] In some embodiments, reference Figure 3 As shown, the opening and closing structure 9 includes a first opening and closing frame 91, a second opening and closing frame 92, a hinge shaft 93, an upper cylinder correction part 94, and a lower cylinder correction part 95. The first opening and closing frame 91 is hinged to the movable hinge frame 7, and the second opening and closing frame 92 is hinged to the fixed hinge frame 8. The first opening and closing frame 91 and the second opening and closing frame 92 are hinged through the hinge shaft 93, so that when the movable hinge frame 7 moves with the lifting structure 6, it synchronously drives the first opening and closing frame 91 to open or retract. When the first opening and closing frame 91 opens or retracts, it synchronously drives the second opening and closing frame 92 to open or retract along the fixed hinge frame 8 through the hinge shaft 93.

[0047] The upper cylinder correction part 94 is connected to the first opening and closing frame 91, and the lower cylinder correction part 95 is connected to the second opening and closing frame 92. The upper cylinder correction part 94 abuts against the inner wall of the upper cylinder 11 to correct the deviation of the inner wall of the upper cylinder 11, and the lower cylinder correction part 95 abuts against the inner wall of the lower cylinder 12 to correct the deviation of the lower cylinder 12.

[0048] All the first opening and closing frames 91 and the second opening and closing frames 92 are of equal length. Therefore, when the first opening and closing frame 91 and the second opening and closing frame 92 are unfolded, the offset part of the lower cylinder 12 or the upper cylinder 11 will contact the upper cylinder correction part 94 or the lower cylinder correction part 95 at the offset point. The other unoffset parts will not contact the corresponding upper cylinder correction part 94 or the lower cylinder correction part 95. When the offset part is pushed to the accurate position by the corresponding upper cylinder correction part 94 or the lower cylinder correction part 95, all the upper cylinder correction parts 94 and the lower cylinder correction parts 95 will abut against the inner wall of the upper cylinder 11 or the lower cylinder 12.

[0049] Specifically, during the process of the lifting structure 6 being driven to rise and fall along the main shaft structure 5 by the driving component 4, the lifting structure 6 drives the first opening and closing frame 91 to unfold through the moving hinge frame 7, and simultaneously drives the second opening and closing frame 92 to unfold in coordination with the hinge shaft 93. This causes the lower cylinder correction part 95 to push and correct the lower cylinder 12, making the axis of the lower cylinder 12 the same as the support structure 3. The upper cylinder correction part 94 pushes and corrects the upper cylinder 11, making the axis of the upper cylinder 11 consistent with the axis of the lower cylinder 12.

[0050] Further reference Figure 2As shown, the upper cylinder correction part 94 and the lower cylinder correction part 95 have the same structure, both being arc-shaped anti-deviation plates. The arc-shaped surface of the arc-shaped anti-deviation plate can fit against the arc-shaped surface of the inner wall of the upper cylinder 11 or the lower cylinder 12, thereby ensuring a larger contact area and a more obvious pushing effect when pushing to correct deviation, thus improving the accuracy of offset reset.

[0051] Furthermore, refer to Figure 4 As shown, the upper cylinder correction part 94 and the lower cylinder correction part 95 are provided with thickened plates on the side away from the main shaft structure 5.

[0052] By using a thickened plate to contact the upper cylinder 11 or the lower cylinder 12, the thickened plate can increase the contact area with the upper cylinder 11 or the lower cylinder 12, so that when the upper cylinder 11 or the lower cylinder 12 contacts the thickened plate, there is a sufficiently large contact area, and the force is distributed to the thickened plate, so as to avoid the thickened plate from forming indentations when it contacts the upper cylinder 11 or the lower cylinder 12, and to ensure the integrity of the upper cylinder 11 and the lower cylinder 12 after being pushed.

[0053] Furthermore, the arc surfaces of the upper cylinder correction part 94 and the lower cylinder correction part 95 are both provided with semi-circular chamfers. The semi-circular chamfers can accommodate the opening or retraction angles of the first opening and closing frame 91 and the second opening and closing frame 92, so that the upper cylinder correction part 94 and the lower cylinder correction part 95 can fit against the inner wall surface of the upper cylinder 11 and the lower cylinder 12 through the semi-circular chamfers, in order to adapt to the size of the upper cylinder 11 or the lower cylinder 12.

[0054] Furthermore, refer to Figure 4 As shown, the lower cylinder correction section 95 also includes a first anti-deviation plate 951, a second anti-deviation plate 952, and a connecting frame 953. The first anti-deviation plate 951 and the second anti-deviation plate 952 are connected vertically through the connecting frame 953, and the connecting frame 953 is connected to the second opening and closing frame 92. The first anti-deviation plate 951 and the second anti-deviation plate 952 abut at different positions. The first anti-deviation plate 951 is located above the lower cylinder 12, and the second anti-deviation plate 952 is located below the upper cylinder 11. This method allows the lower cylinder correction section 95 to... When the second anti-deviation plate 952 abuts against the lower cylinder 12, the first anti-deviation plate 951 can also be used to abut against the inner wall of the upper cylinder 11 when the upper cylinder 11 is placed on the surface of the lower cylinder 12. This allows the second anti-deviation plate 952 to abut against the lower inner wall of the upper cylinder 11 and the upper cylinder correction part 94 to abut against the upper inner wall of the upper cylinder 11 when the upper and lower ends are pushed synchronously, thereby ensuring that the upper cylinder 11 is subjected to more stable force and can be pushed to a position consistent with the axis of the lower cylinder 12.

[0055] In some embodiments, reference Figure 5As shown, the receiving base 2 includes a fixed base 21 and a movable base 22; the fixed base 21 is larger than the movable base 22, and the movable base 22 moves on top of the fixed base 21; the bottom end of the movable base 22 is provided with a rolling part 23, and the rolling part 23 contacts the fixed base 21. The rolling part 23 may include a rolling shaft and a rolling ball. The rolling shaft is installed at the bottom of the movable base 22, and the rolling ball is installed at the bottom of the rolling shaft. The rolling ball contacts the fixed base 21. Optionally, the corners of the fixed base 21 may be provided with protruding guardrails (not shown in the figure) to prevent the rolling part 23 from detaching from the fixed base 21.

[0056] Since the lower cylinder 12 is heavy, it is difficult to move when it needs to be pushed to the designated axis. Therefore, the rolling part 23 is used to reduce the friction between the moving seat 22 and the fixed seat 21, thereby facilitating the movement of the lower cylinder 12.

[0057] The bottom of the movable seat 22 is provided with a clamping member 24, which abuts against the fixed seat 21. After the lower cylinder 12 moves, if the friction between the movable seat 22 and the fixed seat 21 is small due to welding or the upper cylinder 11 pressing down, the lower cylinder 12 is prone to move again. Therefore, by abutting against the fixed seat 21 with the clamping member 24, the contact connection between the rolling part 23 and the fixed part is replaced, thereby increasing the friction between the movable seat 22 and the fixed seat 21 and ensuring the stability of the lower cylinder 12.

[0058] The upper cylinder 11 is originally placed on the lower cylinder 12, so the offset is small. It only needs to be moved slightly to make the axes aligned, and there is no need to use a clamping part 24 or the like to reduce friction.

[0059] Further reference Figure 5 As shown, the rolling part 23 is located in the middle of the clamping member 24. When the clamping member 24 is activated, the clamping end moves towards the fixed seat 21 and clamps against the fixed seat 21. The clamping member 24 and the driving member 4 can be the same, and both can be hollow hydraulic jacks. When the clamping member 24 is not activated, the rolling part 23 abuts against the top of the fixed seat 21. When the clamping member 24 is activated, the clamping end of the clamping member 24 abuts against the top of the fixed seat 21 and lifts the moving seat 22, so that the rolling part 23 separates from the fixed seat 21, thereby replacing the rolling part 23 in contact with the fixed seat 21, so that the lower cylinder 12 can be in a stable position.

[0060] A sensor (not shown in the figure) is provided on the lower cylinder correction part 95. The sensor is electrically connected to the clamping member 24. When all sensors synchronously send electrical signals to the clamping member 24, the clamping member 24 is activated. The sensor can be a pressure sensor. When subjected to pressure, the sensor will transmit electrical signals or control commands.

[0061] Specifically, when the lower cylinder 12 shifts position, the lower cylinder correction part 95 corresponding to the shift point contacts the inner wall of the lower cylinder 12. At the same time, the sensor is pressed and sends an electrical signal or control command to the clamping member 24. At this time, the clamping member 24 will not be activated. When the lower cylinder correction part 95 pushes the lower cylinder 12 to move, and the lower cylinder 12 moves to the designated axis through the moving part and the rolling part 23, all the lower cylinder correction parts 95 will press against the inner wall surface of the lower cylinder 12. At this time, all the sensors are under pressure and send synchronous electrical signals or control commands to the clamping member 24. After receiving the electrical signals or control commands from all the sensors, the clamping member 24 is activated, causing the moving seat 22 to rise and replace the rolling part 23 in contact with the fixed seat 21.

[0062] Alternatively, an external controller can be installed, and the same effect can be achieved by using the controller as a relay for electrical connection. That is, the sensor transmits electrical signals to the controller, and after receiving all electrical signals, the controller sends a start control command to the clamping member 24, which can then start.

[0063] When there are too many sensors, a receiving threshold can be set. For example, if more than three electrical signals or control commands are received, the clamping element 24 can be activated to improve the accuracy of control.

[0064] Since the base 2 is provided with several sets, the rolling part 23 and the clamping part 24 are also provided with several sets. By having multiple sets of rolling parts 23 or clamping parts 24 bear the load at multiple points, the load-bearing capacity can be increased, and multiple sets of clamping parts 24 can be raised synchronously to ensure the stability of the lower cylinder 12.

[0065] The bottom of the clamping member 24 may be provided with a rubber pad or other protective layer to enhance friction, so as to improve the positional stability of the lower cylinder 12.

[0066] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An auxiliary tooling for assembling and welding an inner cover, providing anti-deviation fixing for the assembly and welding of the upper cylinder (11) and lower cylinder (12) of the inner cover (1), characterized in that, The system includes a base (2), a support structure (3), a drive component (4), a main shaft structure (5), a lifting structure (6), a movable hinge frame (7), a fixed hinge frame (8), and an opening and closing structure (9). The support structure (3) is externally connected to the installation platform. Several bases (2) are provided, arranged at preset angles around the support structure (3) in the circumferential direction. The lower cylinder (12) is placed on several bases (2). The main shaft structure (5) is detachably connected to the support structure (3). The drive component (4) is installed at the bottom of the main shaft structure (5). The lifting structure (6) is sleeved on the main shaft structure (5). The drive end of the drive unit (4) is connected; the opening and closing structure (9), the movable hinge frame (7) and the fixed hinge frame (8) are provided in several and the number is the same; the movable hinge frame (7) is set along the circumferential direction of the lifting structure (6), and the fixed hinge frame (8) is set along the circumferential direction of the top of the main shaft structure (5); one end of the opening and closing structure (9) is hinged to the fixed hinge frame (8), and the other end is hinged to the movable hinge frame (7). When the drive unit (4) drives the lifting structure (6) to rise and fall along the main shaft structure (5), it drives the opening and closing structure (9) to open and close, so that the opening and closing structure (9) abuts against the upper cylinder (11) and the lower cylinder (12).

2. The auxiliary tooling for assembling and welding inner covers according to claim 1, characterized in that, The support structure (3) is a cylindrical body with internal threads on its inner wall; the main shaft structure (5) has external threads at its bottom, so that the main shaft structure (5) is screwed to the support structure (3).

3. The auxiliary tooling for assembling and welding an inner cover according to claim 2, characterized in that, The spindle structure (5) has an adjustment component (51) at the bottom, and the spindle structure (5) can be rotated by adjusting the adjustment component (51).

4. The auxiliary tooling for assembling and welding inner covers according to claim 1, characterized in that, The opening and closing structure (9) includes a first opening and closing frame (91), a second opening and closing frame (92), a hinge shaft (93), an upper cylinder correction part (94), and a lower cylinder correction part (95); the first opening and closing frame (91) is hinged to the movable hinge frame (7), and the second opening and closing frame (92) is hinged to the fixed hinge frame (8); the first opening and closing frame (91) and the second opening and closing frame (92) are hinged through the hinge shaft (93); the upper cylinder correction part (94) is connected to the first opening and closing frame (91), and the lower cylinder correction part (95) is connected to the second opening and closing frame (92).

5. The auxiliary tooling for assembling and welding an inner cover according to claim 4, characterized in that, The upper cylinder correction section (94) and the lower cylinder correction section (95) have the same structure, both being arc-shaped anti-deviation plates.

6. The auxiliary tooling for assembling and welding an inner cover according to claim 4, characterized in that, Thickened plates are provided on the side of the upper cylinder correction part (94) and the lower cylinder correction part (95) away from the main shaft structure (5).

7. The auxiliary tooling for assembling and welding an inner cover according to claim 4, characterized in that, Both the upper cylinder correction part (94) and the lower cylinder correction part (95) have semi-circular chamfers on their arc surfaces.

8. The auxiliary tooling for assembling and welding an inner cover according to claim 4, characterized in that, The lower cylinder correction part (95) also includes a first anti-deviation plate (951), a second anti-deviation plate (952) and a connecting frame (953); the first anti-deviation plate (951) and the second anti-deviation plate (952) are connected in the vertical direction through the connecting frame (953), and the connecting frame (953) is connected to the second opening and closing frame (92); the first anti-deviation plate (951) is located above the lower cylinder (12) and the first anti-deviation plate (951) is located below the upper cylinder (11).

9. An auxiliary tooling for assembling and welding an inner cover according to any one of claims 4-7, characterized in that, The receiving base (2) includes a fixed base (21) and a movable base (22); the fixed base (21) is larger than the movable base (22), and the movable base (22) moves on top of the fixed base (21); the bottom of the movable base (22) is provided with a rolling part (23), and the rolling part (23) contacts the fixed base (21); the bottom of the movable base (22) is provided with a clamping part (24), and when the clamping part (24) is activated, it replaces the contact between the rolling part (23) and the fixed base (21).

10. An auxiliary tooling for assembling and welding an inner cover according to claim 9, characterized in that, The rolling part (23) is located in the middle of the clamping part (24), and when the clamping part (24) is activated, the clamping end moves towards the fixed seat (21) and clamps against the fixed seat (21); the lower cylinder correction part (95) is equipped with a sensor, which is electrically connected to the clamping part (24). When all sensors synchronously send electrical signals to the clamping part (24), the clamping part (24) is activated.

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