Welding equipment for elevator shaft steel frame installation

Abstract

This invention relates to the field of welding fixture technology, and provides a welding device for installing steel frames in elevator shafts. The device includes a welding module, a frame, a gantry frame, welding fixtures, an intermediate pipe transfer module, and a drive guide rail. The welding fixtures include side long pipe fixtures, side short pipe fixtures, and an intermediate pipe auxiliary fixture. The side long pipe fixtures and the intermediate pipe auxiliary fixtures work together to limit the side long pipes in the X, Y, and Z directions. The side long pipe fixtures and the side short pipe fixtures work together to limit the side short pipes positioned between two sets of side long pipes in the X and Y directions. The intermediate pipe auxiliary fixtures limit the intermediate pipes in the X direction via the side long pipes. The intermediate pipe transfer module limits the intermediate pipes in the X and Z directions. The drive guide rail moves the intermediate pipes between the two sets of side long pipes and removes the welded steel frame assembly from the frame. The device allows for the simultaneous fixing of three types of pipes without disassembling the fixtures, achieving integrated positioning, unloading, and resetting of the steel frame assembly.

Description

Technical Field

[0001] This invention relates to the field of welding tooling technology, specifically to a welding device for installing steel frames in elevator shafts. Background Technology

[0002] When installing the elevator shaft steel frame, it is necessary to prefabricate the elevator shaft steel frame. (Refer to the attached document.) Figure 12 The prefabricated elevator shaft steel frame is generally composed of side long pipes, side short pipes, and middle pipes, which are assembled together using welding technology.

[0003] A search revealed that publication number CN116851996B discloses a pre-support structure for steel frame weld points in automated energy-saving construction. The structure includes a base and a support plate. A visual sensor for detecting the position of the steel frame weld points is installed at the upper end of the movable plate. Cooling water spray nozzles are installed on both sides of the movable plate. Rotating drums are installed on both outer sides of the mounting plate, and steel wire ropes are installed between the connecting lugs and the rotating drums. This technical solution uses a geared motor to drive the transmission shaft and rotating drums to pull the auxiliary pressure rollers of the support plate, supporting the outside of the first and second steel frames for auxiliary support work. The structure can be adjusted from multiple positions and angles to accommodate the steel frame weld points between the first and second steel frames, improving work quality.

[0004] The existing pre-support structure for steel frame weld points has the following defects for the welding of elevator shaft steel frame: (1) Manual measurement or simple clamps can only achieve single-direction limitation, which cannot meet the coaxiality and position tolerance requirements of multiple pipes in space (side long pipe, side short pipe, middle pipe); The clamp has a single function and cannot simultaneously adapt to the different clamping needs of side long pipes, side short pipes, and middle pipes. Multiple specifications of pipes still need to be positioned step by step and require multiple people to work together, which is cumbersome and inefficient. The clamping mechanism of the intermediate tube conflicts with the unloading path of the welded steel frame assembly, requiring manual disassembly of the fixture before unloading, which interrupts the automated process, resulting in low efficiency and easy workpiece displacement. Summary of the Invention

[0005] The purpose of this invention is to provide a welding device for the installation of steel frames in elevator shafts, which aims to solve the problems existing in the pre-support structure of steel frame weld points.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding device for installing steel frames in elevator shafts, comprising a welding module, a frame, a gantry frame, and a drive guide rail, wherein the welding module is integrated within the gantry frame, the gantry frame is disposed within the drive guide rail above the frame, and further comprising: The welding fixture is installed in the frame and includes a side long pipe fixture, a side short pipe fixture, and an intermediate pipe auxiliary fixture. The side long pipe fixture and the side short pipe fixture are installed on the intermediate pipe auxiliary fixture. The cooperation between the side long pipe fixture and the intermediate pipe auxiliary fixture can limit the side long pipe from the X, Y, and Z directions. The cooperation between the side long pipe fixture and the side short pipe fixture can limit the side short pipe installed between two sets of side long pipes from the X and Y directions. The intermediate pipe auxiliary fixture can limit the intermediate pipe from the X direction through the side long pipe. The intermediate tube transfer module is located in the drive rail below the frame and is situated between two sets of welding fixtures. The intermediate tube transfer module is used to limit the intermediate tube from the X and Z directions. The drive rail is used to move the intermediate tube between the two sets of side long tubes and to remove the welded steel frame assembly from the frame.

[0007] The beneficial effects of the present invention are: (1) The side long pipe clamp and the side short pipe clamp are integrated on the mother plate of the middle pipe auxiliary clamp to form a three-in-one clamping unit. After the side long pipe is positioned by the L-shaped clamping member and the side long pipe positioning protrusion, it becomes the X-direction positioning reference of the middle pipe, realizing the adaptive design of positioning the pipe with the pipe. The three types of pipe fittings can be fixed synchronously without disassembling the clamp, reducing the process switching time. (2) When the medium plate is driven to move by the Y-direction telescopic member, the sliding contact between the second wedge structure and the first wedge structure can synchronously drive the first L-shaped clamping member to press the side long tube along the Z-direction guide rail, thereby achieving multi-directional limiting in one drive and avoiding the accumulation of errors caused by step positioning.

[0008] (3) After welding, the X-direction telescopic component drives the L-shaped clamping component and the side short pipe positioning component to be hidden inside the back plate. The Y-direction telescopic component drives the medium plate to move in the opposite direction, completely avoiding the movement path of the steel frame assembly. The intermediate pipe positioning beam is distributed between the upper and lower sets of intermediate pipes. When the flipping frame rotates 90°, it does not contact the workpiece, realizing the integration of positioning, unloading and resetting of the steel frame assembly. Attached Figure Description

[0009] Figure 1 This is a perspective view of the welding of the steel frame assembly according to the present invention.

[0010] Figure 2 This is an exploded view of the welding fixture according to an embodiment of the present invention.

[0011] Figure 3 This is a perspective view of the side-long tube clamp according to an embodiment of the present invention.

[0012] Figure 4 This is a perspective view of the side short pipe clamp according to an embodiment of the present invention.

[0013] Figure 5 This is an assembly diagram of the side long pipe clamp and the side short pipe clamp of the present invention.

[0014] Figure 6 This is a perspective view of the welding fixture according to an embodiment of the present invention.

[0015] Figure 7 This is a perspective view of the welding fixture used in an embodiment of the present invention to clamp the long pipe and the short pipe on the side.

[0016] Figure 8 This is a side view of the welding fixture used in an embodiment of the present invention to clamp the long pipe and the short pipe on the side.

[0017] Figure 9 For the present invention Figure 8 Cross-sectional view of AA.

[0018] Figure 10 This is a perspective view of the inter-tube transfer module in an embodiment of the present invention.

[0019] Figure 11 This is a schematic diagram of the steel frame assembly that uses the intermediate tube transfer module to move the steel frame assembly according to the present invention.

[0020] Figure 12 This is a schematic diagram illustrating how the intermediate tube transfer module is rotated and detached from the steel frame assembly according to the present invention.

[0021] Figure 13 This is a top view of the initial position of the inter-tube transfer module in an embodiment of the present invention.

[0022] Figure label: 1-Welding module; 2-Frame, 21-Drive rail; 3-Welding fixture, 31-Side long tube fixture, 311-X-direction telescopic component one, 312-Back plate, 313-L-shaped clamping component one, 314-Wedge structure one, 315-Side short tube positioning component, 316-Z-guide rail, 317-Spring, 318-Positioning pin, 32-Side short tube fixture, 321-Y-direction telescopic component, 322-Media plate, 323-Wedge structure two, 324-Oblong hole, 325-L-shaped clamping component two, 33-Intermediate tube auxiliary fixture, 331-Mother plate, 332-X-direction telescopic component two, 333-Side long tube positioning protrusion, 334-Multifunctional opening, 34-Fastener; 4-Intermediate tube transfer module, 41-Tilting frame, 411-Intermediate tube positioning beam, 42-Intermediate tube Y-axis clamp, 43-Central shaft, 44-Moving frame, 45-Drive module; 5-Gantry frame; 6-Steel frame assembly, 61-Side long tube, 62-Side short tube, 63-Intermediate tube. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0024] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0025] Please see Figures 1 to 13 In one embodiment of the present invention, a welding device for installing steel frames in elevator shafts includes a welding module 1, a frame 2, a gantry frame 5, and a drive rail 21. The welding module 1 is integrated within the gantry frame 5, and the gantry frame 5 is disposed within the drive rail 21 above the frame 2. The device also includes: The welding fixture 3 is installed in the frame 2. The welding fixture 3 includes a side long pipe fixture 31, a side short pipe fixture 32, and an intermediate pipe auxiliary fixture 33. The side long pipe fixture 31 and the side short pipe fixture 32 are installed on the intermediate pipe auxiliary fixture 33. The cooperation of the side long pipe fixture 31 and the intermediate pipe auxiliary fixture 33 can limit the side long pipe 61 from the X, Y, and Z directions. The cooperation of the side long pipe fixture 31 and the side short pipe fixture 32 can limit the side short pipe 62 installed between the two sets of side long pipes 61 from the X and Y directions. The intermediate pipe auxiliary fixture 33 can limit the intermediate pipe 63 from the X direction through the side long pipe 61. The intermediate tube transfer module 4 is located in the drive rail 21 below the frame 2. The intermediate tube transfer module 4 is located between two sets of welding fixtures 3. The intermediate tube transfer module 4 is used to limit the intermediate tube 63 from the X and Z directions. The drive rail 21 is used to move the intermediate tube 63 between the two sets of side long tubes 61 and to remove the welded steel frame assembly 6 from the frame 2.

[0026] In this embodiment of the invention, the welding module 1 includes a gantry 5, a steering module, and a welding head module. The gantry 5 is used to adjust the X-axis and Z-axis positions of the welding head module, and the steering module is used to adjust the angle of the welding head module.

[0027] Please see Figures 6 to 9 In another embodiment of the present invention, the intermediate tube auxiliary clamp 33 includes a mother plate 331, an X-direction telescopic member 332, and a side tube positioning protrusion 333. The fixed end of the X-direction telescopic member 332 is disposed on the frame 2. The mother plate 331 is fixedly connected to the movable end of the X-direction telescopic member 332. The side tube positioning protrusion 333 is disposed on the mother plate 331 near the intermediate tube transfer module 4.

[0028] Please see Figures 3 to 9Furthermore, the side tube clamp 31 includes an X-axis telescopic member 311, a back plate 312, an L-shaped clamping member 313, a wedge-shaped structure 314, a side short tube positioning member 315, a Z-axis guide rail 316, fasteners 34, and a spring 317. The fixed end of the X-axis telescopic member 311 is disposed on the mother plate 331. The back plate 312 is fixedly connected to the movable end of the X-axis telescopic member 311. The L-shaped clamping member 313 and the side short tube positioning member 315 are both fixedly connected with fasteners 34. The surface of the back plate 312 is provided with a Z-axis guide rail 31. 6. The L-shaped clamping member 313 is slidably disposed within the Z-guide rail 316. The spring 317 is connected between the L-shaped clamping member 313 and the Z-guide rail 316. The side short tube positioning member 315 is fixedly connected to the back plate 312 by fasteners 34. The L-shaped clamping member 313 is slidably connected to the back plate 312 by fasteners 34. The surface of the L-shaped clamping member 313 is provided with a wedge structure 314. The fasteners 34 include fastening bolts and nuts. Both the side short tube positioning member 315 and the L-shaped clamping member 313 are fixedly connected to the fastening bolts.

[0029] Please see Figures 4 to 9 Furthermore, the side short tube clamp 32 includes a Y-direction telescopic member 321, a medium plate 322, a second wedge structure 323, and a second L-shaped clamping member 325. The fixed end of the Y-direction telescopic member 321 is disposed on the back plate 312. The medium plate 322 is fixedly connected to the movable end of the Y-direction telescopic member 321. The second wedge structure 323 and the second L-shaped clamping member 325 are both disposed on the surface of the medium plate 322. The first wedge structure 314 can slide in contact with the second wedge structure 323. After the first wedge structure 314 is disengaged from the second wedge structure 323, the spring 317 is used to drive the first L-shaped clamping member 313 to move in the opposite direction and reset.

[0030] In this embodiment of the invention, a positioning pin 318 is fixedly provided on the surface of the back plate 312, and a plurality of elongated holes 324 are provided on the surface of the medium plate 322. The elongated holes 324 of the medium plate 322 slide in cooperation with the positioning pin 318 of the back plate 312, which can adapt to the spacing adjustment of side short tubes 62 of different specifications. The positioning pin 318 and the fastener 34 are in sliding contact with the elongated holes 324. The L-shaped clamping member 1 313, the side long tube positioning protrusion 333 and the mother plate 331 can limit the opposite side long tube 61 from X, Y and Z directions. The L-shaped clamping member 2 325 and the side short tube positioning member 315 can limit the opposite side short tube 62 from X and Y directions.

[0031] Please see Figures 10 to 13In another embodiment of the present invention, the intermediate tube transfer module 4 includes a flipping frame 41, an intermediate tube positioning beam 411, an intermediate tube Y-axis clamp 42, a central shaft 43, a moving frame 44, and a drive module 45. The moving frame 44 is slidably disposed in the drive guide rail 21 below the frame 2. A central shaft 43 is disposed between the flipping frame 41 and the moving frame 44, as well as between the two sets of flipping frames 41. The drive module 45 is used to control the rotation of the central shaft 43. The intermediate tube positioning beam 411 and the intermediate tube Y-axis clamp 42 are both disposed in the flipping frame 41. The intermediate tube positioning beam 411 and the intermediate tube Y-axis clamp 42 are used to limit the intermediate tube 63 from the X and Z directions.

[0032] In this embodiment of the invention, the intermediate tube positioning beam 411 and the Y-axis clamp achieve the pre-fixation of the intermediate tube 63 in the X and Z directions. The drive guide rail 21 precisely controls the moving distance. The moving frame 44 slides along the drive guide rail 21 to accurately send the intermediate tube 63 between the two sets of side long tubes 61, which is used to replace manual handling. After welding, the flipping frame 41 rotates 90° around the central axis 43. The positioning beam and the intermediate tube 63 do not interfere with each other. The moving frame 44 can achieve automatic unloading by reversing the reset. The welding, avoidance and unloading are seamlessly connected by the reverse movement of the telescopic parts (X-axis telescopic part 311 is used to hide the clamping parts, and Y-axis telescopic part 321 is used to release the clamp). The surface of the mother plate 331 is provided with multi-functional openings 334 at the joints of the side long tubes 61 and the side short tubes 62 and the joints of the intermediate tube 63 and the side long tubes 61, which not only provide unobstructed operating space for the welding head, but also allow real-time observation of the jointing accuracy.

[0033] Working principle: S100, using the X-direction telescopic component 311 to control the back plate 312, L-shaped clamping component 313, wedge structure 314, and side short tube positioning component 315 to move and extend out of the back plate 312 surface in the X direction, put the lower side long tube 61 into the mother plate 331, and then place the side short tube 62 on the surface of the lower side long tube 61. The side short tube positioning component 315 is used to pre-position the side short tube 62. Then, the upper side long tube 61 is placed on top of the side short tube 62, and the side long tube positioning protrusion 333 is used to position the end of the side long tube 61. S200, the Y-axis telescopic member 321 controls the movement of the medium plate 322, the second wedge structure 323, and the second L-shaped clamping member 325 in the Y direction. The second L-shaped clamping member 325 cooperates with the side short tube positioning member 315 to limit the side short tube 62 set between the two sets of side long tubes 61 from the X and Y directions. The second wedge structure 323 drives the first L-shaped clamping member 313 to fix the side long tubes 61 on the upper and lower sides in the mother plate 331 by sliding contact with the first wedge structure 314. The first L-shaped clamping member 313, the side long tube positioning protrusion 333, and the mother plate 331 can limit the side long tube 61 from the X, Y, and Z directions. S300, by using the drive guide rail 21 above the frame 2 to control the movement of the gantry 5, the welding module 1 can be adjusted in the Y direction. The gantry 5 can adjust the Z and X directions of the welding module 1. The steering module integrated inside the welding module 1 is used to adjust the angle of the welding head module to realize the welding of the side long pipe 61 and the side short pipe 62. The setting of the multi-functional opening 334 makes it easy for the welding head module to weld the joint of the side long pipe 61 and the side short pipe 62 without dead angles. Similarly, the welding of the side long pipe 61 and the side short pipe 62 on the other side can be realized. S400, the intermediate tube 63 is pre-fixed using the intermediate tube Y-axis clamp 42 and the intermediate tube positioning beam 411. The drive guide rail 21 under the frame 2 controls the moving frame 44 to move between the two sets of welding clamps 3. The drive guide rail 21 is used to precisely control the moving distance according to the program setting. The setting of the multi-functional opening 334 helps the staff to confirm whether the intermediate tube 63 has reached the designated position. S500, using the X-direction telescopic component 332 to control the mother plate 331, the side long tube clamp 31 and the side short tube clamp 32 to move in the X direction, the side long tube 61 welded by the welding clamp 3 can clamp and fix the middle tube 63 from both ends, and the welding of the side long tube 61 and the middle tube 63 is achieved by using the method of step S300. The setting of the multi-functional opening 334 facilitates the welding head module to weld the joint of the side long tube 61 and the side short tube 62 without dead angles. S600. After welding is completed, the Y-axis telescopic component 321 controls the medium plate 322, the wedge structure 323 and the L-shaped clamping component 325 to move in the opposite direction in the Y direction to release the side long pipe 61 and the side short pipe 62. The X-axis telescopic component 311 controls the back plate 312, the L-shaped clamping component 313, the wedge structure 314 and the side short pipe positioning component 315 to move in the opposite direction and hide inside the back plate 312 to avoid the subsequent movement of the welded steel frame assembly 6. S700. Since the intermediate tube Y-direction clamp 42 and intermediate tube positioning beam 411 can fix the steel frame assembly 6 through the intermediate tube 63, when the moving frame 44 is controlled by the drive guide rail 21 below the frame 2 to continue moving in the direction away from the side long tube positioning protrusion 333, the steel frame assembly 6 can be separated from the welding clamp 3. S800: The intermediate tube 63 is released using the intermediate tube Y-axis clamp 42. The flipping frame 41 is rotated 90 degrees around the central axis 43 using the drive module 45. Since the intermediate tube positioning beam 411 distributed between the upper and lower sets of intermediate tubes 63 will not interfere with the intermediate tube 63 during rotation, the intermediate tube positioning beam 411 will not interfere with the intermediate tube 63 when the moving frame 44 is moved in the reverse direction and reset using the drive guide rail 21 below the frame 2. At the same time, it plays the role of positioning and unloading, realizing the automated welding of the steel frame assembly 6.

[0034] In summary, this application integrates the side long tube clamp 31 and the side short tube clamp 32 onto the mother plate 331 of the intermediate tube auxiliary clamp 33 to form a three-in-one clamping unit. After the side long tube 61 is positioned by the L-shaped clamping member 313 and the side long tube positioning protrusion 333, it becomes the X-direction positioning reference of the intermediate tube 63, realizing the adaptive design of positioning the tube with the tube. The synchronous fixing of the three types of tubes can be completed without disassembling the clamp, reducing the process changeover time. When the Y-axis telescopic member 321 drives the medium plate 322 to move, the sliding contact between the second wedge structure 323 and the first wedge structure 314 can synchronously drive the first L-shaped clamping member 313 to press the side tube 61 along the Z-axis guide rail 316, thereby achieving multi-directional limiting in one drive and avoiding the accumulation of errors caused by step positioning.

[0035] After welding is completed, the X-axis telescopic component 311 drives the L-shaped clamping component 313 and the side short tube positioning component 315 to hide inside the back plate 312. The Y-axis telescopic component 321 drives the medium plate 322 to move in the opposite direction, completely avoiding the movement path of the steel frame assembly 6. The intermediate tube positioning beam 411 is distributed between the upper and lower sets of intermediate tubes 63. When the flipping frame 41 rotates 90°, it has no contact with the workpiece, realizing the integration of positioning, unloading and resetting of the steel frame assembly 6.

[0036] While several embodiments and examples of the present invention have been described for those skilled in the art, these embodiments and examples are provided as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in various other ways, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A welding device for installing steel frames in elevator shafts, comprising a welding module (1), a frame (2), a gantry frame (5), and a drive rail (21), wherein the welding module (1) is integrated within the gantry frame (5), and the gantry frame (5) is disposed within the drive rail (21) above the frame (2), characterized in that, Also includes: The welding fixture (3) is installed in the frame (2). The welding fixture (3) includes a side long pipe fixture (31), a side short pipe fixture (32), and a middle pipe auxiliary fixture (33). The side long pipe fixture (31) and the side short pipe fixture (32) are installed on the middle pipe auxiliary fixture (33). The cooperation of the side long pipe fixture (31) and the middle pipe auxiliary fixture (33) can limit the side long pipe (61) from the X, Y, and Z directions. The cooperation of the side long pipe fixture (31) and the side short pipe fixture (32) can limit the side short pipe (62) installed between the two sets of side long pipes (61) from the X and Y directions. The middle pipe auxiliary fixture (33) can limit the middle pipe (63) from the X direction through the side long pipe (61). The intermediate tube transfer module (4) is located in the drive rail (21) below the frame (2). The intermediate tube transfer module (4) is located between two sets of welding fixtures (3). The intermediate tube transfer module (4) is used to limit the intermediate tube (63) from the X and Z directions. The drive rail (21) is used to move the intermediate tube (63) between two sets of side long tubes (61) and to remove the welded steel frame assembly (6) from the frame (2).

2. The welding equipment for installing steel frames in elevator shafts according to claim 1, characterized in that, The intermediate tube auxiliary clamp (33) includes a mother plate (331), an X-direction telescopic component two (332), and a side tube positioning protrusion (333). The fixed end of the X-direction telescopic component two (332) is set on the frame (2). The mother plate (331) is fixedly connected to the movable end of the X-direction telescopic component two (332). The side tube positioning protrusion (333) is provided on the mother plate (331) near the intermediate tube transfer module (4).

3. The welding equipment for installing steel frames in elevator shafts according to claim 2, characterized in that, The side tube clamp (31) includes an X-axis telescopic member (311), a back plate (312), an L-shaped clamping member (313), a wedge structure (314), a side short tube positioning member (315), a Z-axis guide rail (316), fasteners (34), and a spring (317). The fixed end of the X-axis telescopic member (311) is mounted on the mother plate (331). The back plate (312) is fixedly connected to the movable end of the X-axis telescopic member (311). Both the L-shaped clamping member (313) and the side short tube positioning member (315) are fixedly connected with fasteners (34). The back plate (312) is provided with a Z-guide rail (316) on its surface. The L-shaped clamping member (313) is slidably disposed in the Z-guide rail (316). The spring (317) is connected between the L-shaped clamping member (313) and the Z-guide rail (316). The side short tube positioning member (315) is fixedly connected to the back plate (312) by a fastener (34). The L-shaped clamping member (313) is slidably connected to the back plate (312) by a fastener (34). The surface of the L-shaped clamping member (313) is provided with a wedge structure (314).

4. The welding equipment for installing steel frames in elevator shafts according to claim 3, characterized in that, The side short pipe clamp (32) includes a Y-direction telescopic member (321), a medium plate (322), a second wedge structure (323), and a second L-shaped clamping member (325). The fixed end of the Y-direction telescopic member (321) is disposed on the back plate (312). The medium plate (322) is fixedly connected to the movable end of the Y-direction telescopic member (321). The second wedge structure (323) and the second L-shaped clamping member (325) are both disposed on the surface of the medium plate (322). The first wedge structure (314) can slide in contact with the second wedge structure (323).

5. The welding equipment for installing steel frames in elevator shafts according to claim 4, characterized in that, The L-shaped clamping member one (313), the side long tube positioning protrusion (333) and the mother plate (331) can limit the opposite side long tube (61) from X, Y and Z, and the L-shaped clamping member two (325) and the side short tube positioning member (315) can limit the opposite side short tube (62) from X and Y.

6. The welding equipment for installing steel frames in elevator shafts according to claim 5, characterized in that, The intermediate tube transfer module (4) includes a flipping frame (41), an intermediate tube positioning beam (411), an intermediate tube Y-axis clamp (42), a central shaft (43), a moving frame (44), and a drive module (45). The moving frame (44) is slidably disposed in the drive guide rail (21) below the frame (2). A central shaft (43) is provided between the flipping frame (41) and the moving frame (44) and between the two sets of flipping frames (41). The drive module (45) is used to control the rotation of the central shaft (43). The intermediate tube positioning beam (411) and the intermediate tube Y-axis clamp (42) are both disposed in the flipping frame (41). The intermediate tube positioning beam (411) and the intermediate tube Y-axis clamp (42) are used to limit the intermediate tube (63) from the X and Z directions.

7. The welding equipment for installing steel frames in elevator shafts according to claim 4, characterized in that, The back plate (312) is fixedly provided with a positioning pin (318), and the medium plate (322) is provided with a plurality of elongated holes (324). The positioning pin (318) and the fastener (34) are in sliding contact with the elongated holes (324).

8. The welding equipment for installing steel frames in elevator shafts according to claim 2, characterized in that, The surface of the mother plate (331) is provided with multi-functional openings (334) at the joints between the side long tube (61) and the side short tube (62) and at the joints between the middle tube (63) and the side long tube (61).

Images