Welding tool clamp for pressure sealing container

Abstract

The invention discloses a pressure sealing container welding tool clamp in the technical field of welding clamps, which comprises a bearing unit, three groups of horizontally arranged workbenches and an aligning and clamping component arranged below the three groups of workbenches, and the two ends of the aligning and clamping component are respectively connected below the workbenches on the two sides; the centering clamping unit comprises a base arranged below the position between every two sets of workbenches, a supporting component arranged above the base, an adjusting component arranged on one side of the upper portion of the base and a pushing component arranged above the center position of the base. Two operations of centering alignment and clamping fixation are combined together, so that the preparation working time during tank body welding is shortened, the girth welding work is conveniently carried out while the centering alignment and clamping stability is guaranteed, the welding working efficiency is further remarkably improved, and the labor intensity of workers is reduced. And tank bodies with different diameter sizes can be centered, aligned, clamped and fixed, so that more use requirements are met.

Description

Technical Field

[0001] The invention relates to the technical field of welding fixtures, and in particular to a welding tool fixture for a pressure-sealed container. Background Art

[0002] A pressure vessel is a closed device that contains gas or liquid and bears a certain pressure, usually in the shape of a round tank. In the production and processing of tank-shaped pressure vessels, multiple groups of metal pipes with round tube structures are connected end to end to form a tank body, and the joints of each two groups of pipes are welded. In order to ensure the sealing of the interface of the two groups of pipes to be welded after welding, people will use special tooling fixtures to center and align the pipes so that the two groups of pipes are concentric and coaxial.

[0003] In the prior art, when welding the tank body, the staff will first use a clamp to clamp and fix the two groups of pipes separately. After fixing, push the two groups of pipes close to each other and make the positions to be welded against each other, and then use the fine-tuning clamp to perform centering and alignment. This method of first clamping, then fine-tuning, and finally centering is complicated to operate, time-consuming and labor-intensive, and seriously affects the welding efficiency of the tank body. The method of fine-tuning after clamping cannot effectively guarantee the clamping effect of the tank body, and thus cannot guarantee the effect of the welding work. At the same time, when welding the joints of the two groups of clamped and fixed pipes, it is necessary to use a welding gun to perform circumferential welding around the joints of the pipes. Due to the limitations of the environment and the clamps, the welding work is very difficult. Therefore, in response to such problems, we propose a pressure-sealed container welding fixture to solve such problems. Summary of the invention

[0004] In view of the above existing problems, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a pressure-sealed container welding fixture, the purpose of which is to shorten the time for centering, aligning and clamping the sealed container tank body during welding, facilitate circumferential seam welding, and improve the work efficiency of welding.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a supporting unit, comprising three groups of horizontally arranged workbenches, an alignment clamping component arranged under the three groups of the workbenches, and two ends of the alignment clamping component are respectively connected to the bottom of the workbenches located on both sides; and, The centering clamping unit includes a base arranged below between each two groups of the workbenches, a supporting component arranged above the base, an adjusting component arranged on one side above the base, a pushing component arranged above the center position of the base, circumferential clamping components symmetrically arranged at both ends above the supporting component, and a driving component fixedly arranged on one side of the pushing component, and one end of the driving component extends outward through the top of the pushing component; the clamping component includes a threaded shaft arranged on the workbench; the base includes a supporting plate located below the workbench.

[0007] As a preferred solution of the pressure-sealed container welding fixture described in the present invention, the workbench includes two groups of symmetrically arranged table plates, and a limiting groove located between the two groups of the table plates, and the two outermost groups of the three groups of workbenches are provided with fixing ears at the lower outer sides.

[0008] As a preferred solution of the pressure-sealed container welding fixture described in the present invention, the alignment clamping component includes a threaded shaft arranged between two groups of fixing ears, two groups of clamping plates symmetrically arranged on the threaded shaft, and the clamping plates pass upward through the limit grooves, and a first drive motor located on one side of the center position of the threaded shaft, and a bevel gear for meshing is arranged between the threaded shaft and the first drive motor.

[0009] As a preferred solution of the pressure-sealed container welding fixture described in the present invention, the base includes a support plate located below the workbench, limit plates symmetrically arranged on both sides of the center position above the support plate in the vertical direction, and a limit plate located in the middle position of the limit plate, and the bottom of the pushing component extends into the limit plate.

[0010] As a preferred solution of the pressure-sealed container welding fixture described in the present invention, the supporting component includes arc-shaped supporting frames symmetrically arranged on both sides above the base, a rotating shaft arranged between the two ends of the two groups of arc-shaped supporting frames, two groups of supporting blocks laterally arranged on the inner sides of the two ends of the arc-shaped supporting frames, and a fixing groove located between the two groups of arc-shaped supporting frames, and both sides of the pushing component extend into the supporting blocks.

[0011] As a preferred solution of the pressure-sealed container welding fixture described in the present invention, the adjusting component includes a second drive motor fixedly arranged on one side of the limiting plate, and a threaded rod arranged above the second drive motor, and the threaded rod extends upward through the side of the pushing component to the supporting block.

[0012] As a preferred solution of the pressure-sealed container welding fixture described in the present invention, the pushing component includes a cross support frame located above the base, top blocks symmetrically arranged on both sides of the cross support frame, a first abutment wheel arranged at the top of the cross support frame, and a clearance groove opened in the center position of the support plate in the vertical direction, and the threaded shaft passes through the clearance groove.

[0013] As a preferred solution of the pressure-sealed container welding fixture described in the present invention, the top block is a right-angled triangle structure and is fixedly connected to both sides of the cross support frame, the hypotenuse of the top block is inclined in the direction of extending outward and downward from the highest point of the side of the cross support frame, a plurality of groups of rollers are distributed in a ring on the first abutment wheel, and the axis of the rollers is perpendicular to the axis of the first abutment wheel, and limiting strips are arranged on both sides of the edge of the top block.

[0014] As a preferred solution of the pressure-sealed container welding fixture described in the present invention, the circumferential clamping component includes an upper support rod rotatably connected to the rotating shaft, a lower push rod arranged below the upper support rod, a ring arranged on the upper support rod, a second abutment wheel arranged at the top end of the upper support rod, and a roller arranged at the end of the lower push rod, and the roller abuts on the oblique edge of the top block.

[0015] As a preferred solution of the pressure-sealed container welding fixture described in the present invention, the driving component includes a third driving motor fixedly connected to one side of the top end of the cross support frame, and a connecting shaft arranged on one side of the third driving motor, and the connecting shaft passes through the top end of the cross support frame and extends outward.

[0016] The beneficial effects of the present invention are as follows: the centering and alignment operations are combined with the clamping and fixing operations, which shortens the preparation time for welding the tank body. While ensuring the centering and alignment and the stability of the clamping, it facilitates the circumferential seam welding work, thereby significantly improving the welding work efficiency. It is also possible to perform centering, alignment and clamping and fixing operations on tank bodies of different diameters, thus meeting more usage requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them: Figure 1 It is a structural schematic diagram of the working state of the pressure sealing container welding fixture of the present invention.

[0018] Figure 2It is a schematic diagram of the overall structure of the pressure sealing container welding fixture of the present invention.

[0019] Figure 3 It is a schematic diagram of the internal structure of the pressure sealing container welding fixture of the present invention.

[0020] Figure 4 It is a side view of the clamping state of the centering clamping unit of the pressure sealing container welding fixture of the present invention.

[0021] Figure 5 It is a structural schematic diagram of the centering clamping unit of the pressure-sealed container welding fixture of the present invention.

[0022] Figure 6 It is a structural schematic diagram of the base, supporting components and adjusting components of the pressure sealing container welding fixture of the present invention.

[0023] Figure 7 It is a structural schematic diagram of the pushing component of the pressure sealing container welding fixture of the present invention.

[0024] Figure 8 It is a schematic structural diagram of the circumferential clamping component of the pressure-sealed container welding fixture of the present invention.

[0025] Figure numbers: 100, supporting unit; 101a, workbench; 101b, table; 101c, limiting groove; 102, alignment clamping member; 102a, threaded shaft; 102b, clamping plate; 102c, first drive motor; 200, centering clamping unit; 201, base; 201a, supporting plate; 201b, limiting plate; 201c, slot; 202, supporting member; 202a, arc-shaped supporting frame; 202b, rotating shaft; 202c, supporting block; 202d, fixing groove; 203, adjusting Joint component; 203a, second drive motor; 203b, threaded rod; 204, pushing component; 204a, cross fixing frame; 204b, top block; 204c, first abutment wheel; 204d, clearance groove; 204e, roller; 204f, limit strip; 205, circumferential clamping component; 205a, upper support rod; 205b, lower support rod; 205c, collar; 205d, second abutment wheel; 205e, roller; 206, drive component; 206a, third drive motor; 206b, connecting shaft. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Example 1 Reference Figure 1~Figure 2 , which is the first embodiment of the present invention, provides a pressure-sealed container welding fixture, which includes a supporting unit 100, including three groups of horizontally arranged workbenches 101, and alignment clamping components 102 arranged below the three groups of workbenches 101, and the two ends of the alignment clamping components 102 are respectively connected to the bottom of the workbenches 101 located on both sides; and, the three groups of workbenches 101 are arranged in parallel to provide a working platform for clamping the tank body, and the upper surface of the workbench 101 is recessed from both sides to the center position, and the recessed position is flush with the top of the pushing component 204, so that the tank body pipe that is not clamped on the supporting unit 100 will be concentrated to the center of the device at the first time, which is convenient for the centering alignment and the alignment clamping component 102 to squeeze and clamp inward.

[0031] The centering clamping unit 200 includes a base 201 arranged below between every two groups of workbenches 101, a supporting component 202 arranged above the base 201, an adjusting component 203 arranged on one side above the base 201, a pushing component 204 arranged above the center position of the base 201, circumferential clamping components 205 symmetrically arranged at both ends above the supporting component 202, and a driving component 206 fixedly arranged on one side of the pushing component 204, and one end of the driving component 206 extends outward through the top of the pushing component 204; the clamping component 102 includes a threaded shaft 102a arranged on the workbench 101; the base 201 includes a supporting plate 201a located below the workbench 101; the device has a total of two groups of centering clamping units 200, the two groups of centering clamping units 200 are respectively arranged between every two groups of workbenches 101, and the workbenches 101 are fixedly connected to the top side of the supporting component 202.

[0032] During use, the two groups of tank body pipes to be welded are placed between the two groups of centering clamping units 200 respectively. The centering clamping units 200 on both sides can synchronously perform centering and circumferential limit clamping work on the two groups of tank body pipes through the pushing component 204 and the circumferential clamping component 205. The two groups of pipes are pushed to move in the horizontal direction through the alignment clamping component 102, and finally abut against each other, which plays a role of horizontal alignment and limit clamping. The dual limit and centering alignment performed synchronously in two directions can effectively ensure that the two groups of pipes will not be deflected or displaced during welding, further ensuring the safe and stable progress of the welding work.

[0033] Example 2 Reference Figure 1~Figure 3 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the two groups of tank body pipes to be welded are clamped against each other in the horizontal direction to ensure the tight connection of the joint parts of the two groups of pipes during welding, thereby ensuring the welding effect.

[0034] Compared with Example 1, further, the workbench 101 includes two groups of symmetrically arranged table plates 101a, and a limiting groove 101b located between the two groups of table plates 101a. The two outermost groups of the three groups of workbenches 101 are provided with fixing ears 101c on the lower outer sides. The limiting groove 101b is used to provide a channel for the sliding of the splint 102b, and to limit the moving direction and range of the splint 102b.

[0035] Among them, the alignment clamping component 102 includes a threaded shaft 102a arranged between two groups of fixing ears 101c, two groups of clamping plates 102b symmetrically arranged on the threaded shaft 102a, and the clamping plates 102b pass upward through the limiting groove 101b, and a first driving motor 102c located on one side of the center position of the threaded shaft 102a, and a bevel gear for meshing is arranged between the threaded shaft 102a and the first driving motor 102c. The first driving motor 102c can drive the threaded shaft 102a to rotate through the bevel gear between the threaded shaft 102a, and the two ends of the threaded shaft 102a are limitedly rotatably connected to the fixing ears 101c, and the threaded shaft 102a can perform circular rotation in situ between the two groups of fixing ears 101c.

[0036] During use, two groups of clamping plates 102b are symmetrically arranged on the threaded shaft 102a, and there is a threaded connection between the two. The clamping plates 102b are limited by the limiting grooves 101b. When the threaded shaft 102a is driven by the first driving motor 102c to rotate, the two groups of clamping plates 102b can be driven to move in relative directions. The clamping plates 102b moving in relative directions can push the corresponding tank body pipes with welding to approach and abut each other, so as to achieve the purpose of clamping and fixing the two groups of tank body pipes to be welded in the horizontal direction. The method of always applying clamping force inward to the two groups of pipes to be welded can effectively ensure the connectivity between the two groups of pipes, thereby further ensuring the welding effect.

[0037] The remaining structures are the same as those of Example 1.

[0038] Example 3 Reference Figure 4~Figure 8 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: two groups of pipes are centered and aligned, and pipes of different sizes are limited and clamped in the circumferential direction to ensure that they will not deflect in the horizontal axial direction after centering and alignment, and can drive the two groups of fixed pipes to rotate at the same time, so as to facilitate the circumferential seam welding work.

[0039] Compared with Example 2, further, the base 201 includes a support plate 201a located below the workbench 101, limit plates 201b symmetrically arranged on both sides of the center position above the support plate 201a in the vertical direction, and a limit plate 201b located in the middle of the limit plate 201b, and the bottom of the pushing component 204 extends into the limit plate 201b, and the support plate 201a is horizontally built on the ground, which can increase the stability of the device. Since the bottom of the cross support frame 204a is located in the slot 201c, it is limited by it and can only slide vertically in the slot 201c.

[0040] Among them, the supporting component 202 includes arc-shaped supporting frames 202a symmetrically arranged on both sides above the base 201, a rotating shaft 202b arranged between the two ends of the two groups of arc-shaped supporting frames 202a, two groups of supporting blocks 202c transversely arranged on the inner sides of the two ends of the arc-shaped supporting frames 202a, and a fixing groove 202d located between the two groups of arc-shaped supporting frames 202a, and both sides of the pushing component 204 extend into the supporting blocks 202c.

[0041] During use, the two groups of arc-shaped support frames 202a are in a C-shaped structure with the opening facing upward, and the inner sides of the bottom ends of the two groups of arc-shaped support frames 202a are fixedly connected to the sides of the limiting plates 201b, so that the supporting component 202 is fixedly connected to the base 201 as a whole. Since the two sides of the pushing component 204 are located in the fixed groove 202d, the pushing component 204 is limited by the fixed groove 202d and can only slide vertically in the fixed groove 202d.

[0042] Among them, the adjusting component 203 includes a second driving motor 203a fixedly set on one side of the limiting plate 201b, and a threaded rod 203b arranged above the second driving motor 203a, and the threaded rod 203b extends upward through the side of the pushing component 204 to the supporting block 202c, and the threaded rod 203b passes through the side of the cross support frame 204a, and there is a threaded connection relationship between the two. Since the pushing component 204 is limited by the fixed groove 202d as a whole, the rotation of the threaded rod 203b can control the pushing component 204 to freely extend and retract in the vertical direction.

[0043] Among them, the pushing component 204 includes a cross support frame 204a located above the base 201, top blocks 204b symmetrically arranged on both sides of the cross support frame 204a, a first abutment wheel 204c arranged at the top of the cross support frame 204a, and a clearance groove 204d vertically opened at the center position of the support plate 201a, and the threaded shaft 102a passes through the clearance groove 204d. The cross support frame 204a has a cross-shaped structure, and its lower end is located in the slot 201c, and is doubly limited by the slot 201c and the arc-shaped support frame 202a, and its top extends into the limiting slot 101b.

[0044] Among them, the top block 204b is a right-angled triangle structure and is fixedly connected to both sides of the cross support frame 204a. The inclination direction of the hypotenuse of the top block 204b is to extend outward and downward from the highest point of the side of the cross support frame 204a. A plurality of groups of rollers 204e are distributed in a ring on the first abutment wheel 204c, and the axis of the roller 204e is perpendicular to the axis of the first abutment wheel 204c. Limiting strips 204f are arranged on both sides of the edge of the top block 204b. The roller 204e is perpendicular to the first abutment wheel 204c, so that the rotation directions therebetween are opposite. The limiting strip 204f can prevent objects sliding on the hypotenuse of the top block 204b from accidentally sliding to the side.

[0045] Among them, the circumferential clamping component 205 includes an upper support rod 205a rotatably connected to the rotating shaft 202b, a lower push rod 205b arranged below the upper support rod 205a, a ring 205c arranged on the upper support rod 205a, a second abutment wheel 205d arranged at the top of the upper support rod 205a, and a roller 205e arranged at the end of the lower push rod 205b, and the roller 205e abuts on the hypotenuse of the top block 204b. The circumferential clamping component 205 is rotatably sleeved on the rotating shaft 202b through the ring 205c, and can rotate around the center of the rotating shaft 202b. The structure of the circumferential clamping component 205 is the same as that of the first abutment wheel 204c, and a roller 204e is arranged on it in the same way, abutting on the top block 204b, and can slide on its hypotenuse.

[0046] The driving component 206 includes a third driving motor 206a fixedly connected to one side of the top of the cross support frame 204a, and a connecting shaft 206b arranged on one side of the third driving motor 206a, and the connecting shaft 206b passes through the top of the cross support frame 204a and extends outward. During use, the connecting shaft 206b passes through the top of the cross support frame 204a that rotatably connects the two groups of centering clamping units 200, and is fixedly connected to the first abutment wheels 204c of the two groups of centering clamping units 200, which can drive the two groups of first abutment wheels 204c to rotate synchronously. Since the first abutment wheels 204c abut against the outer wall of the tank body tube, it can achieve the purpose of driving the tank body tube clamped on the two groups of centering clamping units 200 to rotate. In this way, the two groups of tank body tubes rotate synchronously, which is convenient for welding the annular seam. During welding, the welding gun does not need to be moved, but only needs to be positioned on the weld. After the tank body tube automatically rotates one circle, the welding can be completed.

[0047] Furthermore, the distances from the center of any one of the two sets of second abutment wheels 205d and the center of the other two abutment wheels 204c are the same, so the positions of the three are equally divided in a circle.

[0048] During use, when the clamping action is performed, the rotation of the threaded rod 203b can drive the pushing component 204 to move upward as a whole, and the first abutment wheel 204c at the top of the upwardly moving cross support frame 204a will extend accordingly. At the same time, the pushing component 204 will push the circumferential clamping component 205 upward through the top blocks 204b on both sides. The end of the circumferential clamping component 205 is squeezed and the roller 205e is driven to move along the hypotenuse of the top block 204b, and the squeezing force of the top block 204b is offset by the overall rotation inwardly with the rotating shaft 202b as the axis. The second abutment wheel 205d at the top of the inwardly rotating circumferential clamping component 205 will gradually move toward the tank tube. The outer wall of the tank body tube is tightly attached, and the two groups of circumferential clamping parts 205 on both sides of the centering clamping unit 200 are driven by the pushing part 204 to move synchronously, so the distances moved by the rings 205c on both sides to the outer wall of the tank body tube are the same. During this process, the first abutting wheel 204c synchronously extends upward and lifts the tank body tube. Therefore, the two groups of rings 205c and the first abutting wheel 204c move inward synchronously, and the three move the same distance. Therefore, the tank body tube located between the three will be gradually pushed and squeezed to the center position of the three, thereby achieving the function of three-axis centering. The two groups of centering clamping units 200 move synchronously to achieve the effect of coaxial centering of the two groups of tank body tubes. At the same time, as the pushing component 204 continues to rise, the two sets of second abutment wheels 205d and the first abutment wheel 204c will eventually fix and clamp the pipe with equal force from three directions, thereby limiting the pipe in the circumferential direction so that it always remains on the same axis. At this time, by coordinating the squeezing and clamping of the pipe from the horizontal direction by the alignment clamping component 102, double limiting in the horizontal and circumferential directions can be achieved, which can effectively avoid the phenomenon of offset of the two sets of tank pipes during welding and ensure the welding effect; similarly, by controlling the rotation amplitude of the threaded rod 203b, the extension distance of the pushing component 204 can be controlled, thereby controlling the rotation amplitude of the circumferential clamping components 205 on both sides, thereby achieving the purpose of clamping and fixing tank pipes of different diameters.

[0049] The remaining structure is the same as that of Example 2.

[0050] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, changes in orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to an alternative embodiment. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0051] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those features that are not relevant to implementing the invention).

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pressure-sealed container welding fixture, characterized in that: include, A supporting unit, comprising three groups of horizontally arranged workbenches, an alignment clamping component arranged below the three groups of workbenches, and two ends of the alignment clamping component are respectively connected to the bottom of the workbenches located on both sides; and A centering clamping unit, comprising a base arranged below between each two groups of the workbenches, a supporting component arranged above the base, an adjusting component arranged on one side above the base, a pushing component arranged above the center position of the base, circumferential clamping components symmetrically arranged at both ends above the supporting component, and a driving component fixedly arranged on one side of the pushing component, and one end of the driving component passes through the top end of the pushing component and extends outward; The clamping member comprises a threaded shaft disposed on the workbench; The base includes a support plate located below the workbench; The pushing component includes a cross support frame located above the base, top blocks symmetrically arranged on both sides of the cross support frame, a first abutment wheel arranged at the top of the cross support frame, and a clearance groove vertically provided at the center of the support plate, and the threaded shaft passes through the clearance groove; The top block is a right-angled triangle structure and is fixedly connected to both sides of the cross support frame. The inclination direction of the hypotenuse of the top block extends outward and downward from the highest point of the side of the cross support frame. Multiple groups of rollers are distributed in an annular manner on the first abutment wheel, and the axis of the roller is perpendicular to the axis of the first abutment wheel. Limiting strips are arranged on both sides of the edge of the top block.

2. The pressure-sealed container welding fixture according to claim 1, characterized in that: The workbench comprises two groups of symmetrically arranged table plates and a limiting groove between the two groups of the table plates. The two groups located on the outermost sides of the three groups of workbenches are both provided with fixing ears at the lower outer sides thereof.

3. The pressure-sealed container welding fixture according to claim 2, characterized in that: The alignment clamping component includes a threaded shaft arranged between two groups of fixing ears, two groups of clamping plates symmetrically arranged on the threaded shaft, and the clamping plates pass upward through the limiting grooves, and a first driving motor located on one side of the center position of the threaded shaft, and a bevel gear for meshing is arranged between the threaded shaft and the first driving motor.

4. The pressure-sealed container welding fixture according to claim 3, characterized in that: The base includes a support plate located below the workbench, limit plates symmetrically arranged on both sides of the center position above the support plate in the vertical direction, and a limit plate located in the middle of the limit plates, and the bottom of the pushing component extends into the limit plates.

5. The pressure-sealed container welding fixture according to claim 4, characterized in that: The supporting component includes arc-shaped supporting frames symmetrically arranged on both sides above the base, a rotating shaft arranged between the two ends of the two groups of arc-shaped supporting frames, two groups of supporting blocks arranged laterally on the inner sides of the two ends of the arc-shaped supporting frames, and a fixing groove located between the two groups of arc-shaped supporting frames, and both sides of the pushing component extend into the supporting blocks.

6. The pressure-sealed container welding fixture according to claim 5, characterized in that: The adjusting component includes a second driving motor fixedly arranged on one side of the limiting plate, and a threaded rod arranged above the second driving motor, and the threaded rod extends upward through the side surface of the pushing component to the supporting block.

7. The pressure-sealed container welding fixture according to claim 6, characterized in that: The circumferential clamping component includes an upper support rod rotatably connected to the rotating shaft, a lower push rod arranged below the upper support rod, a ring arranged on the upper support rod, a second abutment wheel arranged at the top end of the upper support rod, and a roller arranged at the end of the lower push rod, and the roller abuts on the oblique edge of the top block.

8. The pressure-sealed container welding fixture according to claim 7, characterized in that: The driving component includes a third driving motor fixedly connected to one side of the top end of the cross support frame, and a connecting shaft arranged on one side of the third driving motor, and the connecting shaft penetrates the top end of the cross support frame and extends outward.

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