Expansion joint welding machining device

Abstract

The invention discloses an expansion joint welding processing device, which relates to the technical field of welding, and comprises a supporting unit, a welding unit and a welding unit, the feeding and fixing unit comprises a feeding assembly arranged on the fixing steel frame, a positioning assembly arranged on the fixing steel frame, a fixing assembly arranged on the fixing steel frame and an expansion joint body arranged on the fixing assembly in a sliding mode. Through cooperative work of the feeding assembly, the fixing assembly, the positioning assembly and the welding assembly, the welding efficiency and quality of the expansion joint body are improved, human errors are reduced through automatic operation, and accurate positioning and stable supporting of the expansion joint body in the welding process are ensured through the positioning assembly.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to an expansion joint welding processing device. Background Art

[0002] Expansion joints are also commonly called compensators, or telescopic joints. They are composed of bellows and end pipes, brackets, flanges, conduits and other accessories that constitute their working body. After the expansion joint is installed on the pipeline, the setting of the expansion joint can supplement the thermal expansion of the pipeline, thereby reducing the stress of the pipe wall, and at the same time reduce the force of the pipe wall stress on the valve or bracket structure.

[0003] The existing clamps can easily cause the expansion joint to shake and deviate during the welding process, thus affecting the quality of the welding connection. At the same time, the axis position of the bellows and the axis position of the flange are not limited during the welding process, which can easily cause the expansion joint formed by welding to fail to meet the use requirements. The ear plates on the two flanges on the expansion joint need to be aligned to facilitate the subsequent installation of the expansion joint. However, the current method of welding the two flanges in batches cannot ensure that the ear plates on the left and right flanges are aligned with each other, and the accuracy is poor, which can easily cause the ear plates of the two flanges on the expansion joint to be misaligned and cannot be used. Summary of the invention

[0004] In view of the above-mentioned problems existing in the existing expansion joint welding processing device, the present invention is proposed.

[0005] Therefore, the present invention provides an expansion joint welding processing device, the purpose of which is to solve the problem that the multiple welding method between the two flanges is difficult to ensure that the ear plates on the left and right flanges are aligned with each other, the accuracy is poor, and it is easy to cause the ear plates of the two flanges on the expansion joint to be misaligned and cannot be used.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: the support unit comprises a fixed steel frame, one end of the fixed steel frame is set as a feeding end, and the other end of the fixed steel frame is set as a driving end; A loading and fixing unit, comprising a loading assembly arranged at the loading end of the fixed steel frame, a fixing assembly arranged at the driving end of the fixed steel frame, an expansion joint body arranged between the loading assembly and the fixing assembly, and a positioning assembly rotatably arranged at the bottom of the expansion joint body and mounted on the fixed steel frame; The welding unit comprises a welding assembly arranged on the fixed steel frame.

[0007] As a preferred solution of the expansion joint welding processing device described in the present invention, the feeding assembly includes a fixed seat arranged on the fixed steel frame, a push rod arranged on the top of the fixed seat, a clamping ring arranged at the output end of the push rod, and a rotating wheel rotatably arranged inside the clamping ring, and the rotating wheel cooperates with the fixed assembly.

[0008] As a preferred solution of the expansion joint welding processing device described in the present invention, the positioning assembly includes a second fixing seat arranged on the fixed steel frame, a support column arranged on the top of the second fixing seat, a second retaining ring arranged on the top of the support column, and a second rotating wheel rotatably arranged inside the second retaining ring.

[0009] As a preferred solution of the expansion joint welding processing device described in the present invention, the fixing assembly includes a fixing column arranged on the fixing steel frame, a motor arranged on one side of the fixing column, a transmission rod arranged at the output end of the motor, a main rotating column arranged at the other end of the transmission rod, a thread groove arranged on the outer diameter of the other end of the main rotating column, and a placement ring arranged on one side of the thread groove, and the placement ring is rotatably connected to the rotating wheel.

[0010] As a preferred solution of the expansion joint welding processing device of the present invention, wherein: the outer diameter of the main rotating column is rotatably provided with a secondary rotating column, and the transmission rod passes through the secondary rotating column and is connected to the main rotating column.

[0011] As a preferred solution of the expansion joint welding processing device described in the present invention, wherein: the outer diameter of the thread groove is provided with a movable sleeve, the outer diameter of the movable sleeve is provided with a connecting ring 1, the outer diameter of the connecting ring 1 is rotatably provided with a linkage rod 1, the other end of the linkage rod 1 is rotatably provided with a bottom plate, the bottom plate is provided with a fixed top plate, and the fixed top plate cooperates with the expansion joint body.

[0012] As a preferred solution of the expansion joint welding processing device described in the present invention, the outer diameter of the auxiliary rotating column is rotatably provided with a connecting ring 2, the other end of the connecting ring 2 is provided with a linkage rod 2, and the other end of the linkage rod 2 is rotatably connected to the base plate.

[0013] As a preferred solution of the expansion joint welding processing device of the present invention, a slide groove is arranged inside the auxiliary rotating column, and a clamping block is arranged inside the slide groove.

[0014] As a preferred solution of the expansion joint welding processing device of the present invention, wherein: a clamping plate is provided on the outer diameter of the main rotating column, and the clamping plate is slidably connected to the sliding groove.

[0015] As a preferred solution of the expansion joint welding processing device described in the present invention, the welding assembly includes a bracket arranged on the fixed steel frame, a fixed plate arranged on the bracket, a welding head arranged on the fixed plate, a limiting rod arranged on both sides of the fixed plate, and a limiting wheel arranged at the bottom of the limiting rod, and the limiting wheel cooperates with the expansion joint body.

[0016] The beneficial effects of the present invention are as follows: through the coordinated work of the feeding assembly, the fixing assembly, the positioning assembly and the welding assembly, the welding efficiency and quality of the expansion joint body are improved, human errors are reduced through automated operation, and the positioning assembly ensures the precise positioning and stable support of the expansion joint body during the welding process, effectively avoiding shaking and deviation, and improving the quality of the welding connection. The application of rotary welding technology promotes uniform heat distribution during welding of the expansion joint body, reduces welding deformation, improves the reliability and safety of the welding structure, and effectively prevents shaking and deviation during welding that affect the quality of the welding connection. The stepwise welding method between the two flanges cannot ensure that the ear plates on the left and right flanges are aligned with each other, resulting in the problem that the expansion joint cannot be welded due to the misalignment of the ear plates of the two flanges. 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 use in the description of 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.

[0018] Figure 1 It is a schematic diagram of the overall structure of the expansion joint welding processing device of the present invention.

[0019] Figure 2 It is a side structural schematic diagram of the expansion joint welding processing device of the present invention.

[0020] Figure 3 It is a schematic diagram of the internal structure of the expansion joint welding processing device of the present invention.

[0021] Figure 4 The expansion joint welding processing device of the present invention Figure 3 A is an enlarged structural diagram of FIG.

[0022] Figure 5 It is a schematic diagram of the internal structure of the fixed component of the expansion joint welding processing device of the present invention.

[0023] Figure 6 The expansion joint welding processing device of the present invention Figure 5 Schematic diagram of the enlarged structure at B.

[0024] Figure 7 It is a schematic diagram of the structure of the feeding assembly of the expansion joint welding processing device of the present invention.

[0025] Figure 8 The expansion joint welding processing device of the present invention Figure 7 Enlarged structural diagram at C.

[0026] Fig. 9 It is a schematic diagram of the cross-sectional structure of the fixed components of the expansion joint welding processing device of the present invention.

[0027] Fig.10 The expansion joint welding processing device of the present invention Fig. 9 Enlarged structural diagram at D.

[0028] Fig.11 The expansion joint welding processing device of the present invention Fig. 9 Enlarged structural diagram at E.

[0029] Fig.12 It is a schematic diagram of the welding assembly structure of the expansion joint welding processing device of the present invention.

[0030] Description of reference numerals: 100, support unit; 101, fixed steel frame; 200, loading fixed unit; 201, loading assembly; 201a, fixed seat 1; 201b, push rod; 201c, clamping ring 1; 201d, rotating wheel 1; 202, positioning assembly; 202a, fixed seat 2; 202b, support column; 202c, clamping ring 2; 202d, rotating wheel 2; 203, fixing assembly; 203a, fixing column; 203b, motor; 203c, transmission rod; 203d, main rotating column; 203d-1, clamping plate; 203 e, thread groove; 203f, placement ring; 203g, movable sleeve ring; 203h, connecting ring 1; 203i, linkage rod 1; 203j, bottom plate; 203k, fixed top plate; 203l, linkage rod 2; 203m, connecting ring 2; 203n, auxiliary rotating column; 203n-1, slide groove; 203n-2, block; 204, expansion joint body; 300, welding unit; 301, welding assembly; 301a, bracket; 301b, fixed plate; 301c, welding head; 301d, limit rod; 301e, limit wheel. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] Example 1, reference Figure 1 - Figure 6 , which is the first embodiment of the present invention, provides an expansion joint welding processing device, which includes: a supporting unit 100, a loading and fixing unit 200, and a welding unit 300.

[0033] The support unit 100 includes a fixed steel frame 101, one end of the fixed steel frame 101 is set as a loading end, and the other end of the fixed steel frame 101 is set as a driving end. The fixed steel frame 101 can provide stable support for the entire device when it is working; The loading and fixing unit 200 includes a loading component 201 arranged at the loading end of the fixed steel frame 101, a fixing component 203 arranged at the driving end of the fixed steel frame 101, an expansion joint body 204 arranged between the loading component 201 and the fixing component 203, and a positioning component 202 rotatably arranged at the bottom of the expansion joint body 204 and installed on the fixed steel frame 101. When the expansion joint body 204 needs to be welded, the loading component 201 starts to move downward, and after moving to the specified position, when the expansion joint body 204 is welded, the loading component 201 works and shrinks downward. After the loading component 201 shrinks to the specified position, the expansion joint body 204 to be welded is put on the surface of the fixing component 203. At the same time, the positioning component 202 at the bottom also positions and limits the expansion joint body 204 during loading, so that The expansion joint body 204 can reach the specified position, the loading component 201 is raised again, the fixing component 203 is engaged and the expansion joint body 204 is provided with auxiliary support, after the expansion joint body 204 is loaded, the fixing component 203 starts to work, and the expansion joint body 204 is supported and fixed from the inside, after the fixing component 203 fixes the expansion joint body 204, the expansion joint body 204 is continued to be driven to rotate, and the expansion joint body 204 is positioned and welded by the welding component 301, which ensures the accurate positioning and stable support of the expansion joint body 204 during the welding process, effectively avoids shaking and offset, improves the quality of the welding connection, and the application of the rotary welding technology promotes the uniform distribution of heat when welding the expansion joint body 204, reduces welding deformation, and improves the reliability and safety of the welding structure; The welding unit 300 includes a welding assembly 301 arranged on a fixed steel frame 101. After the fixed assembly 203 completes loading and fixing the expansion joint body 204, the welding assembly 301 starts welding the expansion joint body 204 while assisting in positioning the expansion joint body 204, and cooperates with the rotation of the fixed assembly 203 to weld the expansion joint body 204 evenly and at a constant speed, thereby reducing welding deformation, improving the reliability and safety of the welding structure, and effectively preventing shaking and offset during welding that affects the quality of the welding connection. In addition, the multiple welding method between the two flanges cannot ensure that the ear plates on the left and right flanges are aligned with each other, resulting in the expansion joint body 204 being unable to be welded due to the misalignment of the ear plates of the two flanges thereon.

[0034] Furthermore, the loading assembly 201 includes a fixing seat 201a arranged on the fixed steel frame 101, a push rod 201b arranged on the top of the fixing seat 201a, a retaining ring 201c arranged at the output end of the push rod 201b, and a rotating wheel 201d rotatably arranged inside the retaining ring 201c, and the rotating wheel 201d cooperates with the fixing assembly 203. When the expansion joint body 204 is loaded, the push rod 201b on the fixing seat 201a starts to work and moves downward, and moves downward with the retaining ring 201c. After moving to the specified position, the expansion joint body 204 can be put on the surface of the fixing assembly 203, and then the expansion joint body 204 is fixed. After the expansion joint body 204 is fixed, the push rod 201b moves upward again until the transmission rod 203c is stuck on the fixing assembly 203, and cooperates with the fixing assembly 203 to weld the rotation of the expansion joint body 204.

[0035] Furthermore, the positioning assembly 202 includes a fixing seat 202a disposed on the fixed steel frame 101, a support column 202b disposed on the top of the fixing seat 202a, a retaining ring 202c disposed on the top of the support column 202b, and a rotating wheel 202d rotatably disposed inside the retaining ring 202c. When the expansion joint body 204 is loaded, the push rod 201b on the fixing seat 1 201a starts to work and moves downward, and moves downward with the retaining ring 1 201c. After moving to the specified position, the expansion joint body 204 can be sleeved on the surface of the fixing assembly 203, and then the expansion joint body 204 is fixed. At the same time, the retaining ring 202c on the support column 202b is used to assist in positioning the expansion joint body 204 sleeved on the surface of the fixing assembly 203, ensuring that the expansion joint body 204 is fixed at the specified position, and the two expansion joint bodies 204 are aligned, and the two expansion joint bodies 204 are rotated in coordination when the fixing assembly 203 rotates with the expansion joint body 204.

[0036] During use, when it is necessary to weld the expansion joint body 204, the loading component 201 starts to move downward. After moving to the specified position, when welding the expansion joint body 204, the loading component 201 works and shrinks downward. After the loading component 201 shrinks to the specified position, the expansion joint body 204 to be welded is put on the surface of the fixing component 203. At the same time, the positioning component 202 at the bottom also positions and limits the expansion joint body 204 during loading, so that the expansion joint body 204 can reach the specified position. The loading component 201 is raised again, the fixing component 203 is engaged, and the expansion joint body 204 is auxiliary supported. After the expansion joint body 204 is loaded, the fixing component 203 starts to work, and supports and fixes the expansion joint body 204 from the inside. After the fixing component 203 fixes the expansion joint body 204, it continues to drive the expansion joint body 204 to rotate, and the expansion joint body 204 is positioned and welded through the welding component 301. The precise positioning and stable support of the expansion joint body 204 during the welding process are ensured, the shaking and deviation are effectively avoided, and the quality of the welding connection is improved. The application of the rotary welding technology promotes the uniform heat distribution when welding the expansion joint body 204, reduces the welding deformation, and improves the reliability and safety of the welding structure. After the fixing component 203 completes the loading of the expansion joint body 204 and fixes the expansion joint body 204, the welding component 301 starts to weld the expansion joint body 204 while assisting in the positioning of the expansion joint body 204, and cooperates with the rotation of the fixing component 203 to weld the expansion joint body 204 evenly and at a uniform speed, which reduces the welding deformation, improves the reliability and safety of the welding structure, and effectively prevents the shaking and deviation during the welding process from affecting the quality of the welding connection. The multiple welding method between the two flanges cannot ensure that the ear plates on the left and right flanges are aligned with each other, resulting in the expansion joint body 204 being unable to be welded due to the misalignment of the ear plates of the two flanges.

[0037] Example 2, reference Figure 1-Figure 11, which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: a fixing assembly 203 includes a fixing column 203a arranged on a fixing steel frame 101, a motor 203b arranged on one side of the fixing column 203a, a transmission rod 203c arranged at the output end of the motor 203b, a main rotating column 203d arranged at the other end of the transmission rod 203c, a thread groove 203e arranged on the outer diameter of the other end of the main rotating column 203d, and a placement ring 203f arranged on one side of the thread groove 203e, and the placement ring 203f is rotatably connected with the rotating wheel 201d. After the expansion joint body 204 is sleeved on the fixing assembly 203, the motor 203b on the fixing column 203a starts to work, so that the transmission rod 203c starts to rotate with the main rotating column 203d. At the same time, because the other end of the main rotating column 203d is provided with a thread groove 203e, the thread groove 203e is arranged on the other end of the main rotating column 203d. The movable ring 203g on the outer diameter of the groove 203e starts to move along the thread groove 203e, and while the movable ring 203g moves, the linkage rod 203i on the surface of the connecting ring 203h on the movable ring 203g starts to adjust its angle, and with the assistance of the rotation of the linkage rod 203l on the surface of the secondary rotating column 203n, the fixed top plate 203k is lifted up by the bottom plate 203j and the linkage rod 203i, so that the fixed top plate 203k supports the inner diameter of the expansion joint body 204, thereby fixing the expansion joint body 204, so that the expansion joint body 204 can be stably fixed on the surface of the fixed top plate 203k, and then the expansion joint body 204 on the fixed assembly 203 is limited and welded through the welding assembly 301, which can effectively achieve accurate positioning and stable clamping of the expansion joint body 204 during welding, thereby ensuring the quality of welding.

[0038] Compared with Example 1, further, the outer diameter of the main rotating column 203d is rotatably provided with a secondary rotating column 203n, and the transmission rod 203c penetrates the secondary rotating column 203n and is connected to the main rotating column 203d, the outer diameter of the thread groove 203e is provided with a movable sleeve 203g, the outer diameter of the movable sleeve 203g is provided with a connecting ring 203h, the outer diameter of the connecting ring 203h is rotatably provided with a linkage rod 203i, the other end of the linkage rod 203i is rotatably provided with a bottom plate 203j, the bottom plate 203j is provided with a fixed top plate 203k, and the fixed top plate 203k cooperates with the expansion joint body 204, and the expansion joint body 204 is sleeved on the surface of the fixed top plate 203k During the fixing process, the connecting ring 203h and the linkage rod 203i are brought closer to the auxiliary rotating column 203n through the moving ring 203g. When approaching, the linkage rod 203i on the connecting ring 203h and the linkage rod 2 203l on the auxiliary rotating column 203n begin to rotate to adjust the angle. In the process of rotation, the bottom plate 203j is unfolded with the fixed top plate 203k to fix the expansion joint body 204 outside the fixed top plate 203k, and the expansion joint body 204 is fixedly supported and connected inside. Therefore, the fixing effect of the fixed top plate 203k on the expansion joint body 204 is better and more stable.

[0039] Furthermore, the outer diameter of the secondary rotating column 203n is rotatably provided with a connecting ring 203m, the other end of the connecting ring 203m is provided with a linkage rod 203l, and the other end of the linkage rod 203l is rotatably connected to the bottom plate 203j, the interior of the secondary rotating column 203n is provided with a slide groove 203n-1, the interior of the slide groove 203n-1 is provided with a block 203n-2, the outer diameter of the main rotating column 203d is provided with a card plate 203d-1, and the card plate 203d-1 is slidably connected to the slide groove 203n-1, after the expansion joint body 204 is stably fixed by fixing the top plate 203k, the motor 203b continues to work , so that the main rotating column 203d continues to rotate inside the secondary rotating column 203n, and at the same time, the card plate 203d-1 on the outer diameter of the main rotating column 203d also rotates inside the slide groove 203n-1 on the inner diameter of the secondary rotating column 203n. After the card plate 203d-1 rotates and touches the block 203n-2, the motor 203b is still working, so that the main rotating column 203d starts to rotate with the secondary rotating column 203n, so that the expansion joint body 204 fixed on the surface of the fixed component 203 is rotated as a whole, so that the expansion joint body 204 can be rotationally welded, making the welding more uniform and ensuring the quality of the welding.

[0040] During use, after the expansion joint body 204 is sleeved on the fixed component 203, the motor 203b on the fixed column 203a starts to work, so that the transmission rod 203c starts to rotate with the main rotating column 203d. At the same time, because the other end of the main rotating column 203d is provided with a thread groove 203e, the movable ring 203g on the outer diameter of the thread groove 203e starts to move along the thread groove 203e. When the movable ring 203g moves, the linkage rod 203i on the surface of the connecting ring 203h on the movable ring 203g starts to adjust the angle, and With the assistance of the rotation of the linkage rod 203l on the surface of the rotating column 203n, the fixed top plate 203k is lifted up by the bottom plate 203j and the linkage rod 1 203i, so that the fixed top plate 203k supports the inner diameter of the expansion joint body 204, thereby fixing the expansion joint body 204, so that the expansion joint body 204 can be stably fixed on the surface of the fixed top plate 203k, and then the expansion joint body 204 on the fixed component 203 is limited and welded by the welding component 301, which can effectively achieve accurate positioning and stable clamping of the expansion joint body 204 during welding.

[0041] When the expansion joint body 204 is put on the surface of the fixed top plate 203k and fixed, the connecting ring 203h and the linkage rod 203i are brought closer to the auxiliary rotating column 203n through the movable ring 203g. When approaching, the linkage rod 203i on the connecting ring 203h and the linkage rod 203l on the auxiliary rotating column 203n begin to rotate to adjust the angle, and in the process of rotation, the bottom plate 203j is unfolded with the fixed top plate 203k to fix the expansion joint body 204 outside the fixed top plate 203k, and the inside of the expansion joint body 204 is fixedly supported and connected, so that the fixed top plate 203k can fix the expansion joint body 204. The fixing effect is better and more stable, and the motor 203b continues to work, so that the main rotating column 203d continues to rotate inside the secondary rotating column 203n, and at the same time, the card plate 203d-1 on the outer diameter of the main rotating column 203d also rotates inside the slide groove 203n-1 on the inner diameter of the secondary rotating column 203n. After the card plate 203d-1 rotates and touches the block 203n-2, the motor 203b is still working, so that the main rotating column 203d starts to rotate with the secondary rotating column 203n, so that the expansion joint body 204 fixed on the surface of the fixed component 203 is rotated as a whole, so that the expansion joint body 204 can be rotationally welded, making the welding more uniform and ensuring the quality of the welding.

[0042] The remaining structures are the same as those of Example 1.

[0043] Example 3, reference Figure 1 - Fig.12, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the welding assembly 301 includes a bracket 301a arranged on the fixed steel frame 101, a fixing plate 301b arranged on the bracket 301a, and a welding head 301c arranged on the fixing plate 301b. After the fixing assembly 203 fixes the expansion joint body 204, the limiting rod 301d and the limiting wheel 301e on the welding assembly 301 are also engaged in the surface texture of the expansion joint body 204. When the fixing assembly 203 causes the expansion joint body 204 to rotate, the limiting rod 301d and the limiting wheel 301e on the welding assembly 301 are also engaged in the surface texture of the expansion joint body 204. The limiting rod 301d and the limiting wheel 301e also rotationally limit the surface of the expansion joint body 204 at the top, assisting the internal fixing component 203 in fixing the expansion joint body 204. At the same time, the welding head 301c starts to adjust the distance, and after the adjustment is completed, the expansion joint body 204 starts to be welded. During the welding process, the fixing component 203 rotates with the expansion joint body 204, and the welding of the expansion joint body 204 by the welding head 301c makes the rotary welding promote the uniform heat distribution during the welding of the expansion joint body 204, reduce welding deformation, and improve the reliability and safety of the welding structure.

[0044] Compared with Example 2, further, the limiting rods 301d on both sides of the fixed plate 301b, and the limiting wheels 301e arranged at the bottom of the limiting rods 301d, and the limiting wheels 301e cooperate with the expansion joint body 204. When the fixing component 203 rotates the expansion joint body 204, the limiting rods 301d and the limiting wheels 301e on the welding component 301 also rotationally limit the surface of the expansion joint body 204 at the top, and at the same time, the loading component 201 and the positioning component 202 on the fixed steel frame 101 also limit and assist the rotation of the bottom outer diameter of the expansion joint body 204, so that the expansion joint body 204 can achieve a more stable welding effect when rotating.

[0045] During use, after the fixing assembly 203 has fixed the expansion joint body 204, the limiting rod 301d and the limiting wheel 301e on the welding assembly 301 are also engaged in the surface texture of the expansion joint body 204. When the fixing assembly 203 rotates the expansion joint body 204, the limiting rod 301d and the limiting wheel 301e on the welding assembly 301 also limit the rotation of the surface of the expansion joint body 204 at the top. At the same time, the feeding assembly 201 and the positioning assembly 202 on the fixed steel frame 101 also limit and assist the rotation of the bottom outer diameter of the expansion joint body 204. , so that the expansion joint body 204 can achieve a more stable welding effect when it rotates, and cooperate with the auxiliary internal fixing component 203 to fix the expansion joint body 204. At the same time, the welding head 301c starts to adjust the distance. After the adjustment is completed, the expansion joint body 204 is welded. During the welding process, the fixing component 203 rotates with the expansion joint body 204, and the welding of the expansion joint body 204 by the welding head 301c makes the rotary welding promote the uniform heat distribution during the welding of the expansion joint body 204, reduce welding deformation, and improve the reliability and safety of the welding structure.

[0046] The remaining structure is the same as that of Example 2.

[0047] 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. An expansion joint welding processing device, characterized in that: include: The support unit (100) comprises a fixed steel frame (101), one end of the fixed steel frame (101) being configured as a loading end, and the other end of the fixed steel frame (101) being configured as a driving end; A loading and fixing unit (200) comprises a loading assembly (201) arranged at the loading end of the fixed steel frame (101), a fixing assembly (203) arranged at the driving end of the fixed steel frame (101), an expansion joint body (204) arranged between the loading assembly (201) and the fixing assembly (203), and a positioning assembly (202) rotatably arranged at the bottom of the expansion joint body (204) and mounted on the fixed steel frame (101); The welding unit (300) comprises a welding assembly (301) arranged on the fixed steel frame (101).

2. The expansion joint welding processing device according to claim 1 is characterized in that: The loading assembly (201) comprises a fixing seat (201a) arranged on the fixing steel frame (101), a push rod (201b) arranged on the top of the fixing seat (201a), a clamping ring (201c) arranged at the output end of the push rod (201b), and a rotating wheel (201d) rotatably arranged inside the clamping ring (201c), and the rotating wheel (201d) cooperates with the fixing assembly (203).

3. The expansion joint welding processing device according to claim 2 is characterized in that: The positioning assembly (202) comprises a second fixing seat (202a) arranged on the fixed steel frame (101), a support column (202b) arranged on the top of the second fixing seat (202a), a second retaining ring (202c) arranged on the top of the support column (202b), and a second rotating wheel (202d) rotatably arranged inside the second retaining ring (202c).

4. The expansion joint welding processing device according to claim 3 is characterized in that: The fixing assembly (203) comprises a fixing column (203a) arranged on the fixing steel frame (101), a motor (203b) arranged on one side of the fixing column (203a), a transmission rod (203c) arranged at the output end of the motor (203b), a main rotating column (203d) arranged at the other end of the transmission rod (203c), a thread groove (203e) arranged on the outer diameter of the other end of the main rotating column (203d), and a placement ring (203f) arranged on one side of the thread groove (203e), wherein the placement ring (203f) is rotationally connected to the rotating wheel (201d).

5. The expansion joint welding processing device according to claim 4 is characterized in that: The outer diameter of the main rotating column (203d) is rotatably provided with a secondary rotating column (203n), and the transmission rod (203c) passes through the secondary rotating column (203n) and is connected to the main rotating column (203d).

6. The expansion joint welding processing device according to claim 5, characterized in that: The outer diameter of the thread groove (203e) is provided with a movable sleeve (203g), the outer diameter of the movable sleeve (203g) is provided with a connecting ring (203h), the outer diameter of the connecting ring (203h) is rotatably provided with a linkage rod (203i), the other end of the linkage rod (203i) is rotatably provided with a bottom plate (203j), the bottom plate (203j) is provided with a fixed top plate (203k), and the fixed top plate (203k) cooperates with the expansion joint body (204).

7. The expansion joint welding processing device according to claim 6, characterized in that: The outer diameter of the auxiliary rotating column (203n) is rotatably provided with a second connecting ring (203m), the other end of the second connecting ring (203m) is provided with a second linkage rod (203l), and the other end of the second linkage rod (203l) is rotatably connected to the bottom plate (203j).

8. The expansion joint welding processing device according to claim 7, characterized in that: A slide groove (203n-1) is provided inside the auxiliary rotating column (203n), and a clamping block (203n-2) is provided inside the slide groove (203n-1).

9. The expansion joint welding processing device according to claim 8, characterized in that: The outer diameter of the main rotating column (203d) is provided with a clamping plate (203d-1), and the clamping plate (203d-1) is slidably connected to the sliding groove (203n-1).

10. The expansion joint welding processing device according to claim 9, characterized in that: The welding assembly (301) comprises a bracket (301a) arranged on the fixed steel frame (101), a fixed plate (301b) arranged on the bracket (301a), a welding head (301c) arranged on the fixed plate (301b), a limiting rod (301d) arranged on both sides of the fixed plate (301b), and a limiting wheel (301e) arranged at the bottom of the limiting rod (301d), and the limiting wheel (301e) cooperates with the expansion joint body (204).

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