A steel plate concrete wallboard welding auxiliary device

Abstract

The utility model discloses a steel plate concrete wallboard welding auxiliary device, including upper mould, lower mould and a plurality of support piers, upper mould includes upper formwork, and the lower surface of upper formwork is first fixed surface, and the upper surface of upper form work is provided with upper observation hole board, lower mould includes lower formwork, and the upper surface of lower formwork is second fixed surface, and the lower surface of lower formwork is provided with lower observation hole board, and the fixed structure for fixing the wall panel of steel plate concrete wallboard is set up on first fixed surface, and the fixed structure for fixing the wall base plate of steel plate concrete wallboard is set up on second fixed surface, and a plurality of operating holes are set up on lower formwork and upper formwork, and operating hole and wall base plate, wall panel on welding perforation one to one correspondence, still be provided with observation avoidance hole on upper observation hole board, lower observation hole board, and the side of upper formwork and lower formwork still is provided with connecting piece, and the device can better guarantee the welding quality of steel plate concrete wallboard welding.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to an auxiliary device for welding steel plate concrete wall panels. Background Technology

[0002] During the construction of the nuclear island of a nuclear power plant, a large number of steel-concrete composite wall panels are required. These panels mainly consist of a base plate and a front plate. The base plate and front plate are arranged in parallel and have several welding holes. A threaded steel bar is inserted into each welding hole and welded to the base plate and front plate. Studs are also welded to the opposite surfaces of the base plate and front plate. Concrete is then poured into the space between the base plate and front plate to form the steel-concrete composite wall panel. This wall panel is used in the construction of the nuclear island, where multiple panels are assembled to form a complete wall. Therefore, the flatness requirement for this type of wall panel is extremely high. If it is not flat, misalignment will occur between the two panels during assembly, making welding impossible. Therefore, the parallelism between the base plate and front plate must be ensured during the welding and forming of the steel-concrete composite wall panel.

[0003] The current welding auxiliary device has a relatively simple structure. Warping deformation caused by welding studs to the wall base plate and wall panel is cold-straightened and then assembled on-site. This is mainly achieved by several support blocks between the wall base plate and wall panel, with studs already welded to them. Connecting strips are then welded to the sides of the wall base plate and wall panel to connect them as one unit. Threaded steel bars are then inserted into the welding holes and welded to the wall base plate and wall panel. After welding, the connecting strips and support blocks are disassembled. However, this welding auxiliary device has the following disadvantages: 1. The current support blocks are directly supported by metal blocks. After welding, the support blocks are knocked out, which is a complex operation. Especially since welding the threaded steel bars generates tensile force, reducing the distance between the wall base plate and wall panel, making it even more difficult to knock out the metal blocks; 2. The connecting strips need to be welded to the sides of the wall base plate and wall panel, which can easily cause localized deformation of the wall panel and wall base plate during welding. 3. There are a lot of high-altitude operations, which pose significant safety risks; 4. A large amount of steel support is needed to ensure the stability of the large-sized steel plate walls, requiring substantial investment in materials and labor. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a welding auxiliary device for steel plate concrete wall panels, which can better ensure the welding quality of steel plate concrete wall panels.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a welding auxiliary device for steel plate concrete wall panels, including an upper mold, a lower mold, and several support blocks; the upper mold includes an upper template, the lower surface of which is a first fixing surface, and an upper observation hole plate is provided on the upper surface of which; the lower mold includes a lower template, the upper surface of which is a second fixing surface, and a lower observation hole plate is provided on the lower surface of which; a fixing structure for fixing the wall panel of the steel plate concrete wall panel is provided on the first fixing surface, and a fixing structure for fixing the wall base plate of the steel plate concrete wall panel is provided on the second fixing surface; several operating holes for convenient welding operations are provided on the lower template and the upper template, and the operating holes correspond one-to-one with the welding through holes on the wall base plate and the wall panel; observation avoidance holes corresponding one-to-one with the operating holes are also provided on the upper and lower observation hole plates, the size of the operating holes is larger than the size of the welding through holes, the size of the observation avoidance holes is larger than the size of the operating holes, and connecting parts for welding the upper template and the lower template together are also provided on their sides.

[0006] As a preferred embodiment, the fixing structure on the first fixing surface includes four positioning blocks and several C-shaped locking blocks. The positioning blocks are L-shaped and welded to the first fixing surface. The four positioning blocks are located at the four corners, forming a positioning area for positioning the wall panel. The locking blocks are fixed to the first fixing surface and distributed around the positioning area. The locking blocks are located on the first fixing surface at the edge of the wall panel. A wedge-shaped locking plate is inserted into the locking block, and the wedge-shaped locking plate presses and fixes the wall panel. The fixing structure on the second fixing surface is the same as the fixing structure on the first fixing surface.

[0007] As a preferred embodiment, the operating hole and the observation clearance hole correspond one-to-one and are coaxially arranged, and the operating hole is a tapered hole.

[0008] As a preferred embodiment, the upper surface of the upper template is provided with several parallel upper stiffening plates connected to the upper observation hole plate, the upper stiffening plates being perpendicular to the upper observation hole plate and the upper template; the lower surface of the lower template is connected to the lower observation hole plate through several parallel lower stiffening plates, the lower stiffening plates being perpendicular to the lower observation hole plate and the lower template.

[0009] As a preferred embodiment, the support pier includes a base, with a fixed support plate fixed to the upper end of the base. The fixed support plate has a first inclined surface at its upper end and a movable wedge plate at its upper end. The movable wedge plate has a second inclined surface at its lower end that mates with the first inclined surface. The upper surface of the movable wedge plate is a horizontal support surface. The lower surface of the base is parallel to the horizontal support surface. A through hole is provided on the side wall of the base. An operating groove is provided on the movable wedge plate, and a force-applying groove wall corresponding to the through hole is provided on the operating groove. A clearance connecting hole is provided on the fixed support plate, connecting the through hole and the operating groove. A limiting structure to restrict the sliding of the movable wedge plate can be detachably installed between the fixed support plate and the movable wedge plate. The locking structure allows for convenient and quick placement of the entire support pier in a designated position during installation.

[0010] As a preferred embodiment, the limiting structure includes a limiting pin, and a semi-circular insertion slot is provided between the first inclined surface and the second inclined surface. The insertion slots cooperate to form an insertion hole. The limiting pin is inserted into the insertion hole, and a portion of the limiting pin is exposed outside the insertion hole. The exposed portion of the limiting pin is provided with a pull hole.

[0011] As a preferred embodiment, the operating groove is a groove with a triangular cross-section, and the force-applying groove wall is vertically arranged.

[0012] As a preferred embodiment, both the through hole and the avoidance connecting hole are inclined through holes, and the inclined holes correspond to and are adapted to the inclined groove wall position of the triangular operating groove.

[0013] As a preferred embodiment, a locking structure is further provided between the base and the movable wedge plate to lock the movable wedge plate. The locking structure includes a locking hook rotatably mounted on the side of the base, and a locking pin that cooperates with the locking hook is also provided on the side wall of the movable wedge plate.

[0014] After adopting the above technical solution, the effect of this utility model is as follows: The auxiliary device for welding steel plate concrete wall panels includes an upper mold, a lower mold, and several support blocks. The upper mold includes an upper template, the lower surface of which is a first fixing surface, and an upper observation hole plate is provided on the upper surface of the upper template. The lower mold includes a lower template, the upper surface of which is a second fixing surface, and a lower observation hole plate is provided on the lower surface of the lower template. A fixing structure for fixing the wall panel of the steel plate concrete wall panel is provided on the first fixing surface, and a fixing structure for fixing the wall base plate of the steel plate concrete wall panel is provided on the second fixing surface. Several operation holes for convenient welding operations are provided on the lower and upper templates. The operating holes correspond one-to-one with the welding through holes on the wall base plate and wall panel. The upper and lower observation hole plates are also provided with observation clearance holes that correspond one-to-one with the operating holes. The size of the operating holes is larger than the size of the welding through holes, and the size of the observation clearance holes is larger than the size of the operating holes. The sides of the upper and lower templates are also provided with connectors that weld the two together. Therefore, this welding auxiliary device has the following advantages compared with the existing structure: 1. The welding auxiliary device uses upper and lower molds to fix the wall panel and wall base plate, and uses connectors to directly fix the upper and lower templates, which reduces the welding between the connectors and the wall panel and wall base plate and reduces welding deformation. 1. It avoids the warping deformation caused by welding studs on the wall base plate and wall panel, which requires a cold straightening process; 2. It uses upper and lower molds to press together vertically and then weld them together with connectors, making the upper and lower molds flatter and better pressed onto the support pier, and reducing deformation when welding threaded steel bars; 3. Threaded steel bars can be inserted through the operating hole and observation clearance hole, and then welded to the threaded steel bars in the welding hole through the operating hole and observation clearance hole, so the operation is relatively convenient. During welding, the upper and lower molds are pressed tightly against the wall panel and wall base plate, minimizing welding deformation as much as possible; 4. A large amount of welding work can be completed in the workshop, and a good welding environment can improve the quality of welded products; 5. It greatly reduces the risk of working at height; 6. Using the molds for steel plate wall structure assembly and welding has high production efficiency; 7. Steel plate wall assembly and welding in the workshop has a spacious working surface, which is conducive to the use of large equipment such as overhead cranes, greatly improving production efficiency compared to on-site construction.

[0015] Furthermore, the fixing structure on the first fixing surface includes four positioning blocks and several C-shaped locking blocks. The positioning blocks are L-shaped and welded to the first fixing surface. The four positioning blocks are located at the four corners, forming a positioning area for positioning the wall panel. The locking blocks are fixed to the first fixing surface and distributed around the positioning area. The locking blocks are located on the first fixing surface at the edge of the wall panel, and wedge-shaped locking plates are inserted into the locking blocks. The wedge-shaped locking plates press and fix the wall panel. The fixing structure on the second fixing surface is the same as that on the first fixing surface. Therefore, this fixing structure can flexibly press and fix the wall panel and the wall base plate, minimizing welding between the wall base plate and the wall panel during fixing and reducing local deformation caused by welding. It also avoids the need for cold straightening processes to prevent warping deformation caused by welding studs between the wall base plate and the wall panel.

[0016] Furthermore, since the operating hole and the observation clearance hole are one-to-one and coaxially arranged, and the operating hole is a conical hole, the one-to-one correspondence and coaxial arrangement of the operating hole and the observation clearance hole facilitates better alignment with the welding perforations on the wall base plate and wall panel. At the same time, the conical shape of the operating hole allows for greater exposure of the bevel between the welding perforation and the threaded rebar when inserting the threaded rebar, resulting in a wider field of vision and thus facilitating operation.

[0017] Furthermore, since the supporting pier includes a base, a fixed support plate is fixed to the upper end of the base, a first inclined surface is provided at the upper end of the fixed support plate, a movable wedge plate is provided at the upper end of the fixed support plate, a second inclined surface that cooperates with the first inclined surface is provided at the lower end of the movable wedge plate, the upper end surface of the movable wedge plate is configured as a horizontal support surface, the lower end surface of the base is parallel to the horizontal support surface, a through hole is also provided on the side wall of the base, an operating groove is provided on the movable wedge plate, and a force-applying groove wall corresponding to the through hole is provided on the operating groove, the fixed support... The plate is provided with a clearance connecting hole that connects the through hole and the operating slot. A limiting structure that restricts the sliding of the movable wedge plate can also be detachably installed between the fixed support plate and the movable wedge plate. Therefore, during normal support, the horizontal support surface on the movable wedge plate supports the bottom of the wall panel. When disassembly is required, a push rod is directly inserted through the through hole. The push rod passes directly through the clearance connecting hole and is inserted into the operating slot, pushing against the wall of the force application slot. In this way, the movable wedge plate slides by pushing. After loosening, the movable wedge plate descends along the first inclined surface and separates from the wall panel. Therefore, the disassembly of this support pier is simpler.

[0018] Furthermore, since the operating groove is a groove with a triangular cross-section and the force application groove wall is vertically set, the horizontal component force on the force application groove wall will be greater and require less effort.

[0019] Furthermore, since both the through hole and the avoidance connecting hole are inclined through holes, and the inclined holes correspond to and are adapted to the inclined groove wall of the triangular operating groove, the inclined through hole and the avoidance connecting hole will play a certain guiding role when inserting the push rod, so that the push rod can be inserted into the operating groove more accurately.

[0020] Furthermore, a locking structure is provided between the base and the movable wedge plate to lock the movable wedge plate in place. This locking structure includes a locking hook rotatably mounted on the side of the base, and a locking pin on the side wall of the movable wedge plate that engages with the locking hook. Since multiple sets of support blocks are needed during welding, and each set's movable wedge plate and fixed support plate are precision-machined and individually matched, mixing them could lead to inaccurate matching. Therefore, the locking structure ensures that each corresponding set of movable wedge plates and fixed support plates is locked together, preventing confusion. The locking structure also facilitates quick placement of the entire support block in the designated position during installation; and when not in use, it allows for easy locking of the movable wedge plate and base together, simplifying storage and management. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0023] Figure 2 This is a structural schematic diagram from another angle of an embodiment of the present invention;

[0024] Figure 3 This is a front view of an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the mold structure in an embodiment of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the mold in an embodiment of this utility model;

[0027] Figure 6 This is a schematic diagram of the structure of the support pier according to an embodiment of the present utility model;

[0028] Figure 7 This is a top view of the support pier according to an embodiment of the present utility model;

[0029] Figure 8 yes Figure 7 Structural cross-sectional view along AA;

[0030] Figure 9 This is a structural schematic diagram of the support pier in use according to an embodiment of this utility model;

[0031] Figure 10 yes Figure 4 Enlarged view of the structure at point I;

[0032] In the attached diagram: 1. Upper mold; 11. Upper template; 12. Operating hole; 13. Upper observation hole plate; 14. Locking block; 15. Positioning block; 16. Wedge-shaped locking plate; 17. Upper stiffening plate; 2. Lower mold; 21. Lower template; 22. Second fixed surface; 23. Lower observation hole plate; 24. Observation clearance hole; 25. Lower stiffening plate; 3. Support pier; 31. Base; 32. Fixed support plate; 321. First inclined surface; 322. Clearance connecting hole; 33. Movable wedge plate; 331. Horizontal support surface; 332. Operating groove; 3321. Force application groove wall; 3322. Inclined groove wall; 34. Through hole; 35. Limiting pin; 36. Insertion hole; 37. Pull hole; 38. Locking hook; 39. Locking pin; 4. Wall panel; 5. Wall base plate; 6. Threaded steel bar; 7. Stud; 8. Push rod. Detailed Implementation

[0033] The present invention will be further described in detail below through specific embodiments.

[0034] like Figure 1-10 As shown, a welding auxiliary device for steel-concrete wall panels includes an upper mold 1, a lower mold 2, and several support blocks 3. The upper mold 1 includes an upper template 11, the lower surface of which is a first fixing surface, and an upper observation hole plate 13 is provided on the upper surface of the upper template 11. The lower mold 2 includes a lower template 21, the upper surface of which is a second fixing surface 22, and a lower observation hole plate 23 is provided on the lower surface of the lower template 21. The first fixing surface is provided with a fixing structure for fixing the wall panel 4 of the steel-concrete wall panel, and the second fixing surface 22 is provided with a fixing structure for fixing the wall panel 4 of the steel-concrete wall panel. The fixing structure of the wall base plate 5 of the fixed steel plate concrete wall panel includes several operation holes 12 on the lower template 21 and the upper template 11 for convenient welding operations. The operation holes 12 correspond one-to-one with the welding through holes on the wall base plate 5 and the wall panel 4. The upper observation hole plate 13 and the lower observation hole plate 23 are also provided with observation avoidance holes 24 that correspond one-to-one with the operation holes 12. The size of the operation holes 12 is larger than the size of the welding through holes, and the size of the observation avoidance holes 24 is larger than the size of the operation holes 12. The sides of the upper template 11 and the lower template 21 are also provided with connectors that weld the two together.

[0035] In this embodiment, the operating hole 12 and the observation clearance hole 24 are one-to-one and coaxially arranged. The operating hole 12 is a conical hole. The fixing structure on the first fixing surface includes four positioning blocks 15 and several C-shaped locking blocks 14. The positioning blocks 15 are L-shaped and welded to the first fixing surface. The four positioning blocks 15 are located at the four corners to form the positioning area for positioning the wall panel 4. The locking blocks 14 are fixed to the first fixing surface and distributed around the positioning area. The locking blocks 14 are set on the first fixing surface of the side edge of the wall panel 4. A wedge-shaped locking plate 16 is inserted into the locking block 14. The wedge-shaped locking plate 16 presses and fixes the wall panel 4. The fixing structure on the second fixing surface 22 is the same as the fixing structure on the first fixing surface.

[0036] The upper surface of the upper template 11 is provided with several parallel upper stiffening plates 17 connected to the upper observation hole plate 13, and the upper stiffening plates 17 are perpendicular to the upper observation hole plate 13 and the upper template 11; the lower surface of the lower template 21 is connected to the lower observation hole plate 23 through several parallel lower stiffening plates 25, and the lower stiffening plates 25 are perpendicular to the lower observation hole plate 23 and the lower template 21.

[0037] In this embodiment, the support pier 3 includes a base 31, a fixed support plate 32 fixed to the upper end of the base 31, a first inclined surface 321 provided at the upper end of the fixed support plate 32, a movable wedge plate 33 provided at the upper end of the fixed support plate 32, a second inclined surface provided at the lower end of the movable wedge plate 33 that cooperates with the first inclined surface 321, the upper end surface of the movable wedge plate 33 being configured as a horizontal support surface 331, the lower end surface of the base 31 being parallel to the horizontal support surface 331, a through hole provided on the side wall of the base 31, an operating groove 332 provided on the movable wedge plate 33, a force-applying groove wall 3321 corresponding to the through hole provided on the operating groove 332, an avoidance connecting hole 322 provided on the fixed support plate 32 connecting the through hole and the operating groove 332, and a limiting structure for restricting the sliding of the movable wedge plate 33 can be detachably installed between the fixed support plate 32 and the movable wedge plate 33. The limiting structure includes a limiting pin 35. A semi-circular insertion slot is provided between the first inclined surface 321 and the second inclined surface. The insertion slot and the semi-circular insertion slot cooperate to form an insertion hole 36. The limiting pin 35 is inserted into the insertion hole 36, and a portion of the limiting pin 35 is exposed outside the insertion hole 36. The exposed portion of the limiting pin 35 is provided with a pull hole 37. The operating groove 332 is a groove with a triangular cross-section, and the force-applying groove wall 3321 is vertically arranged. The through hole and the avoidance connecting hole 322 are both inclined through holes, and the inclined holes correspond to and are adapted to the position of the inclined groove wall 3322 of the triangular operating groove 332.

[0038] A locking structure for locking the movable wedge plate 33 is also provided between the base 31 and the movable wedge plate 33. The locking structure includes a locking hook 38 rotatably mounted on the side of the base 31, and a locking pin 39 that cooperates with the locking hook 38 is also provided on the side wall of the movable wedge plate 33.

[0039] In use, the welding auxiliary device of this application employs an upper mold 1 and a lower mold 2 to fix the wall panel 4 and the wall base plate 5. The fixing structure on the second fixing surface 22 is the same as the fixing structure on the first fixing surface. On the first fixing surface, four positioning blocks 15 are located at the four corners to form a positioning area for positioning the wall panel 4. The locking blocks 14 are fixed on the first fixing surface and distributed around the positioning area. The locking blocks 14 are located on the side of the wall panel 4, and a wedge-shaped locking plate 16 is inserted into the locking block 14. The wedge-shaped locking plate 16 presses and fixes the wall panel 4, while using a connecting... The upper template 11 and lower template 21 are directly fixed by the connector, which reduces the welding between the connector and the wall panel 4 and the wall base plate 5, thus reducing welding deformation. The upper mold 1 and lower mold 2 are pressed together vertically and then welded together by the connector, making the upper template 11 and lower template 21 flatter and better pressed onto the support pier 3, which also reduces deformation when welding the threaded steel bar 6. The threaded steel bar 6 can be inserted through the operating hole 12 and the observation clearance hole 24, and then welded to the threaded steel bar 6 in the welding through hole through the operating hole 12 and the observation clearance hole 24, which is also convenient. The operating hole 12 and the observation clearance hole 24 on the upper mold 1 and lower mold 2 are one-to-one and coaxially set, which is convenient for corresponding with the welding through holes on the wall panel 4 and the wall base plate 5. At the same time, the operating hole 12 is set as a conical hole, which provides a wider field of vision when inserting the threaded steel bar 6, thus facilitating operation. The wall panel 4 and the wall base plate 5 are also provided with studs 7.

[0040] When the support pier 3 is in normal support, the horizontal support surface 331 on the movable wedge plate 33 supports the wall panel 4. When disassembly is required, the push rod 8 is directly inserted through the through hole. The push rod 8 passes directly through the avoidance connecting hole 322 and is inserted into the operating groove 332, pushing against the force-applying groove wall 3321. Since the through hole and the avoidance connecting hole 322 are both inclined through holes, and the position of the inclined hole corresponds to the inclined groove wall 3322 of the triangular operating groove 332, the inclined through hole and the avoidance connecting hole 322 will play a certain guiding role when the push rod 8 is inserted, so that the push rod 8 is inserted more accurately into the operating groove 332. The movable wedge plate 33 slides by pushing, and the loosened movable wedge plate 33 descends along the first inclined surface 321 and separates from the wall panel 4, making the disassembly of the support pier 3 simpler.

[0041] During operation, multiple sets of support blocks 3 need to be used simultaneously. The locking hooks 38 and locking pins of the locking structure can lock the corresponding movable wedge plates 33 and fixed support plates 32 together to avoid confusion and facilitate the overall placement in the designated position during installation and use.

[0042] The above-described embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Any modifications and alterations to the technical solution of the present utility model without departing from its design spirit shall fall within the protection scope defined by the claims of the present utility model.

Claims

1. A welding auxiliary device for steel plate concrete wall panels, characterized in that: The system includes an upper mold, a lower mold, and several support blocks. The upper mold includes an upper template, the lower surface of which is a first fixing surface, and an upper observation hole plate is provided on the upper surface of the upper template. The lower mold includes a lower template, the upper surface of which is a second fixing surface, and a lower observation hole plate is provided on the lower surface of the lower template. A fixing structure for fixing the wall panel of the steel-concrete wall panel is provided on the first fixing surface, and a fixing structure for fixing the wall base plate of the steel-concrete wall panel is provided on the second fixing surface. Several operation holes for convenient welding operations are provided on the lower and upper templates, and the operation holes correspond one-to-one with the welding through holes on the wall base plate and the wall panel. Observation avoidance holes corresponding one-to-one with the operation holes are also provided on the upper and lower observation hole plates. The size of the operation holes is larger than the size of the welding through holes, and the size of the observation avoidance holes is larger than the size of the operation holes. Connectors for welding the upper and lower templates together are also provided on the sides of the upper and lower templates.

2. The auxiliary device for welding steel plate concrete wall panels as described in claim 1, characterized in that: The fixing structure on the first fixing surface includes four positioning blocks and several C-shaped locking blocks. The positioning blocks are L-shaped and welded to the first fixing surface. The four positioning blocks are located at the four corners to form a positioning area for positioning the wall panel. The locking blocks are fixed to the first fixing surface and distributed around the positioning area. The locking blocks are set on the first fixing surface at the edge of the wall panel. A wedge-shaped locking plate is inserted into the locking block. The wedge-shaped locking plate presses and fixes the wall panel. The fixing structure on the second fixing surface is the same as the fixing structure on the first fixing surface.

3. The auxiliary device for welding steel plate concrete wall panels as described in claim 2, characterized in that: The operating hole and the observation clearance hole are one-to-one and coaxially arranged, and the operating hole is a tapered hole.

4. The auxiliary device for welding steel plate concrete wall panels as described in claim 1, characterized in that: The upper surface of the upper template is provided with several parallel upper stiffening plates connected to the upper observation hole plate, the upper stiffening plates being perpendicular to the upper observation hole plate and the upper template; the lower surface of the lower template is connected to the lower observation hole plate through several parallel lower stiffening plates, the lower stiffening plates being perpendicular to the lower observation hole plate and the lower template.

5. The auxiliary device for welding steel plate concrete wall panels as described in claim 1, characterized in that: The support pier includes a base, a fixed support plate fixed to the upper end of the base, a first inclined surface at the upper end of the fixed support plate, a movable wedge plate at the upper end of the fixed support plate, a second inclined surface at the lower end of the movable wedge plate that cooperates with the first inclined surface, the upper end surface of the movable wedge plate being a horizontal support surface, the lower end surface of the base being parallel to the horizontal support surface, a through hole on the side wall of the base, an operating groove on the movable wedge plate, a force-applying groove wall corresponding to the through hole on the operating groove, an avoidance connecting hole on the fixed support plate connecting the through hole and the operating groove, and a limiting structure for restricting the sliding of the movable wedge plate can be detachably installed between the fixed support plate and the movable wedge plate.

6. The auxiliary device for welding steel plate concrete wall panels as described in claim 5, characterized in that: The limiting structure includes a limiting pin. A semi-circular insertion slot is provided between the first inclined surface and the second inclined surface. The insertion slots cooperate to form an insertion hole. The limiting pin is inserted into the insertion hole, and a portion of the limiting pin is exposed outside the insertion hole. The exposed portion of the limiting pin is provided with a pull hole.

7. The auxiliary device for welding steel plate concrete wall panels as described in claim 6, characterized in that: The operating groove is a groove with a triangular cross-section, and the force-applying groove wall is vertically arranged.

8. The auxiliary device for welding steel plate concrete wall panels as described in claim 7, characterized in that: Both the through hole and the avoidance connecting hole are inclined through holes, and the inclined holes correspond to and are adapted to the inclined groove wall of the triangular operating groove.

9. The auxiliary device for welding steel plate concrete wall panels as described in claim 8, characterized in that: A locking structure for locking the movable wedge plate is also provided between the base and the movable wedge plate. The locking structure includes a locking hook rotatably mounted on the side of the base, and a locking pin that cooperates with the locking hook is also provided on the side wall of the movable wedge plate.

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