A gantry type flange rounding machine

Abstract

This application discloses a gantry-type flange rounding machine, relating to the technical field of flange processing equipment. It includes: a gantry frame, a multi-degree-of-freedom clamping assembly, and a dual-station rounding assembly. The multi-degree-of-freedom clamping assembly is disposed on one side of the gantry frame and includes a loading worktable, a lifting arm clamping worktable, and multiple sets of grippers. The loading worktable is horizontally slidably disposed on one side of the gantry frame, and the lifting arm is vertically slidably disposed on one side of the loading worktable. The clamping worktable is fixedly connected to the bottom of the lifting arm, and the multiple sets of grippers are hinged below the clamping worktable. The dual-station rounding assembly is disposed below the clamping worktable and includes a transfer table, a rounding table, an extension assembly, multiple sets of hydraulic extension components, and multiple sets of synchronous positioning components. Both the transfer table and the rounding table are disposed below the clamping worktable. This application has the advantages of improving the rounding effect of flange rounding equipment on large-size flanges and increasing processing efficiency.

Description

Technical Field

[0001] This application relates to the field of flange processing equipment technology, and in particular to a gantry flange rounding machine. Background Technology

[0002] Flanges are mechanical components used to connect shafts or pipes. A flange rounding machine is a device used to correct, round, and level flanges. Currently, the most common flange rounding methods are mechanical rounding and hydraulic rounding. Hydraulic rounding is the mainstream flange rounding method, which mainly uses a hydraulic cylinder to drive the mold to move and compress the flange to make it round. This method has the advantages of high forming pressure and good control precision, and is especially suitable for rounding flanges with large thickness and large diameter.

[0003] Existing flange rounding equipment has poor adaptability to rounding large-size flanges. At the same time, the connection between workpiece transfer and rounding station is not smooth, resulting in poor rounding effect and low processing efficiency for large-size flanges. Summary of the Invention

[0004] To address the issues of poor rounding performance and low processing efficiency of flange rounding equipment for large flanges, this application provides a gantry-type flange rounding machine.

[0005] This application provides a gantry-type flange rounding machine, which adopts the following technical solution: A gantry-type flange rounding machine includes: a gantry frame, a multi-degree-of-freedom clamping assembly, and a dual-station rounding assembly. The multi-degree-of-freedom clamping assembly is disposed on one side of the gantry frame and includes a loading worktable, a lifting arm clamping worktable, and multiple sets of grippers. The loading worktable is horizontally slidably disposed on one side of the gantry frame, and the lifting arm is vertically slidably disposed on one side of the loading worktable. The clamping worktable is fixedly connected to the bottom of the lifting arm, and the multiple sets of grippers are hingedly disposed below the clamping worktable. The dual-station rounding assembly is disposed on... Below the clamping worktable, the dual-station rounding assembly includes a transfer table, a rounding platform, an extension assembly, multiple sets of hydraulic extension components, and multiple sets of synchronous positioning components. The transfer table and the rounding platform are both located below the clamping worktable, with the rounding platform located on one side of the transfer table. The extension assembly is rotatably located above the rounding platform. Multiple sets of hydraulic extension components are fixedly located within the extension assembly for extending and rounding the flange. Multiple sets of synchronous positioning components are located above the rounding platform for auxiliary positioning and safety protection of the flange.

[0006] By adopting the above technical solution, the flange to be processed is placed above the transfer table. The lowering movement of the lifting arm moves multiple sets of grippers to the outside of the flange on the transfer table, clamping it by driving the grippers to close. Subsequently, the flange is moved by controlling the lifting arm to rise and the loading table to slide horizontally, moving it above the circular platform and placing it on top. Multiple sets of synchronous positioning components synchronously position the flange, maintaining its alignment. Then, multiple sets of hydraulic jacking components are moved to extrude and shape the flange from the inside out. Simultaneously, driving the jacking components to rotate allows the hydraulic jacking components to extrude and shape different positions on the flange, ensuring the accuracy of the flange's circular shape processing.

[0007] Optionally, the multi-degree-of-freedom clamping assembly further includes a sliding rack, a sliding gear, and a sliding drive motor. The sliding rack is fixedly connected to the side wall of the gantry frame. The sliding gear is rotatably disposed on one side of the loading table and meshes with the sliding rack. The sliding drive motor is fixedly disposed on one side of the loading table, and the output shaft of the sliding drive motor is fixedly connected to the sliding gear.

[0008] By adopting the above technical solution, during use, the sliding drive motor drives the sliding gear to rotate. Since the sliding rack and the sliding gear mesh, the loading worktable is driven to slide horizontally along the gantry through the cooperation of the sliding rack and the sliding gear, thereby realizing the function of horizontal movement adjustment of the clamping worktable.

[0009] Optionally, the multi-degree-of-freedom clamping assembly further includes a lifting rack, a lifting drive motor, and a lifting gear. The lifting rack is fixedly connected to the side wall of the lifting arm, and the lifting drive motor is fixedly mounted on one side of the loading workbench.

[0010] By adopting the above technical solution, during use, the lifting drive motor drives the lifting gear to rotate, thereby enabling the lifting gear to adjust and control the lifting arm in cooperation with the lifting rack, thus realizing the function of adjusting the lifting and moving of the clamping worktable.

[0011] Optionally, the lifting gear is fixedly connected to the output shaft of the lifting drive motor, and the lifting gear meshes with the lifting rack.

[0012] By adopting the above technical solution, the lifting gear plays the role of transmitting the power of the lifting drive motor, so that the lifting rack can move under the meshing action of the lifting gear.

[0013] Optionally, the multi-degree-of-freedom clamping assembly further includes an electric telescopic rod and a linkage ring. The electric telescopic rod is fixedly installed inside the lifting arm, and the piston rod of the electric telescopic rod is fixedly connected to the linkage ring. The linkage ring is installed inside the clamping worktable, and the linkage ring is hinged to one end of the multiple sets of grippers located inside the clamping worktable.

[0014] By adopting the above technical solution, during use, by controlling the extension and retraction of the piston rod inside the electric telescopic rod, the linkage ring can drive multiple sets of grippers to retract or expand along with the extension and retraction of the piston rod, thereby realizing the function of clamping and releasing the flange to be processed.

[0015] Optionally, the dual-station circular assembly further includes refractory filler and multiple sets of support rings. The refractory filler is filled above the transfer table, and the multiple sets of support rings are all annular components with open ends, and the multiple sets of support rings are evenly arranged above the refractory filler.

[0016] By adopting the above technical solution, during use, the support ring is supported, limited, and insulated by refractory filler. Multiple sets of support rings support and limit the flange to be processed, so that the flange rounding machine presents a situation where "one flange is in the processing state, while another flange is in the waiting state", making the connection between workpiece transfer and rounding station during flange processing smoother.

[0017] Optionally, the dual-station circular assembly includes a rotating shaft, a drive gear, a transmission gear, and a rotating motor. The rotating shaft is rotatably connected to the circular platform. One end of the rotating shaft is fixedly connected to the bottom surface of the top extension assembly, and the other end of the rotating shaft is fixedly connected to the drive gear. The transmission gear is fixedly disposed below the circular platform, and the output shaft of the transmission gear is fixedly connected to the rotating motor. The rotating motor meshes with the drive gear.

[0018] By adopting the above technical solution, in use, the drive gear is rotated by rotating the motor, which in turn drives the rotating shaft to rotate. This rotating shaft then drives the jacking assembly to rotate synchronously, thereby achieving the function of adjusting the position of the hydraulic jacking component.

[0019] Optionally, the hydraulic jacking component includes a jacking hydraulic cylinder, a jacking piston rod, and a jacking plate. The jacking hydraulic cylinder is fixedly installed inside the jacking assembly, the jacking piston rod is slidably installed inside the jacking hydraulic cylinder, and the jacking plate is fixedly connected to one end of the jacking piston rod located outside the jacking hydraulic cylinder. An oil inlet groove is provided inside the jacking assembly.

[0020] By adopting the above technical solution, during use, the extension and retraction of the piston rod are controlled by controlling the hydraulic oil delivery state in the extension hydraulic cylinder, thereby controlling the extrusion forming operation state of the extension plate.

[0021] Optionally, the synchronous positioning component includes multiple sets of support guide blocks, multiple sets of positioning blocks, and multiple adjusting screws. The multiple sets of support guide blocks are all fixedly arranged above the entire truncated cone. The multiple sets of positioning blocks are arranged above the support guide blocks and are slidably connected to the support guide blocks. The multiple sets of positioning blocks are staggered with the grippers.

[0022] By adopting the above technical solution, during use, multiple sets of support guide blocks support and limit the flange to be processed, creating a gap between the bottom of the flange and the upper side of the circular platform, facilitating subsequent clamping of the flange by multiple sets of grippers. Simultaneously, multiple sets of positioning blocks synchronously position the flange to be processed, placed on the outside of the top extension assembly, ensuring the centering of the flange during unloading and preventing deformation due to uneven stress during the expansion of the multiple top extension plates.

[0023] Optionally, multiple adjusting screws are threadedly connected to the lower part of the positioning block, and multiple sets of support guide blocks are provided with clearance grooves on their upper parts. The adjusting screws are rotatably disposed in the clearance grooves, one end of each adjusting screw is rotatably connected to the top extension plate, and the other end of each adjusting screw is slidably connected to the support guide block.

[0024] By adopting the above technical solution, the position of the positioning block is adjusted by driving the adjusting screw to rotate, enabling the positioning block to synchronously position flanges of different diameters. Simultaneously, the adjusting screw acts as a connection and limiter between the positioning block and the top plate, allowing the positioning block to move synchronously with the sliding of the top plate under the action of the adjusting screw. This avoids the deformation of the flange to be processed due to synchronous internal and external compression between the positioning block and the top plate.

[0025] In summary, the embodiments of the present invention provide a gantry flange rounding machine, which includes at least one of the following beneficial technical effects: 1. By setting up a multi-degree-of-freedom clamping assembly, flanges of different diameters can be clamped and transported, improving the convenience of clamping and transporting flanges to be processed; 2. By setting up a dual-station rounding assembly, the smoothness of the connection between the flange workpiece transfer and the rounding station is improved, and the efficiency of flange rounding processing is increased; 3. By using the combination of synchronous positioning components and hydraulic jacking components, the flange can be positioned in a complete circle, ensuring the uniformity of force during the flange circle-forming process and improving the accuracy of flange circle-forming. Attached Figure Description

[0026] Figure 1 A perspective view of a gantry flange rounding machine provided in an embodiment of the present invention; Figure 2Another perspective view of a gantry flange rounding machine provided in an embodiment of the present invention; Figure 3 This is a partial structural schematic diagram of a gantry flange rounding machine provided in an embodiment of the present invention; Figure 4 This is a sectional view of a gantry flange rounding machine provided in an embodiment of the present invention; Figure 5 for Figure 4 Enlarged view of the structure at point A in the middle; Figure 6 for Figure 4 Enlarged view of the structure at point B in the middle; Figure 7 for Figure 4 Enlarged view of the structure at point C.

[0027] Explanation of the markings in the image: 1. Gantry frame; 2. Multi-degree-of-freedom clamping assembly; 201. Loading table; 202. Lifting arm; 203. Clamping table; 204. Gripper; 205. Sliding rack; 206. Sliding gear; 207. Sliding drive motor; 208. Lifting rack; 209. Lifting drive motor; 210. Lifting gear; 211. Electric telescopic rod; 212. Linkage ring; 3. Dual-station circular assembly; 301. Transfer table; 302. Circular stage; 303. Top extension assembly; 304. Refractory packing; 305. Support ring; 306. Rotating shaft; 307. Drive gear; 308. Transmission gear; 309. Rotary motor; 310. Top extension hydraulic cylinder; 311. Top extension piston rod; 312. Top extension plate; 313. Support guide block; 314. Positioning block; 315. Adjusting screw. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0029] Combination Figure 1 and Figure 2 This application discloses a gantry-type flange rounding machine, comprising: a gantry frame 1, a multi-degree-of-freedom clamping assembly 2, and a dual-station rounding assembly 3. In practical applications, the multi-degree-of-freedom clamping assembly 2 freely transports the flange to be processed, while the dual-station rounding assembly 3 performs compression processing on the flange. The dual-station rounding assembly 3 employs an inside-out hydraulic jacking method to round flanges of different diameters, thus improving the applicability of the equipment.

[0030] Combination Figure 1 and Figure 2A multi-degree-of-freedom clamping assembly 2 is disposed on one side of the gantry frame 1. The multi-degree-of-freedom clamping assembly 2 includes a loading worktable 201, a lifting arm 202, a clamping worktable 203, and multiple sets of grippers 204. In practical applications, the clamping worktable 203 is moved horizontally and vertically by driving the loading worktable 201 to slide horizontally and the lifting arm 202 to rise and fall. Simultaneously, the flange to be processed is clamped and transferred by controlling the multiple sets of grippers 204 to retract.

[0031] Combination Figure 1 and Figure 2 The loading worktable 201 is horizontally slidably disposed on one side of the gantry frame 1. The loading worktable 201 serves to limit the assembly of the lifting arm 202. Simultaneously, the lifting arm 202 moves horizontally synchronously by driving the loading worktable 201 to slide horizontally. The lifting arm 202 is vertically slidably disposed on one side of the loading worktable 201. The lifting arm 202 serves to assemble, fix, and adjust the lifting height of the clamping worktable 203.

[0032] Combination Figure 4 and Figure 6 The clamping worktable 203 is fixedly connected to the bottom of the lifting arm 202. The clamping worktable 203 provides assembly and positioning for multiple sets of grippers 204. All sets of grippers 204 are hinged below the clamping worktable 203. The flange to be processed is clamped by controlling the retraction of the multiple sets of grippers 204. The flange to be processed is released by controlling the expansion of the multiple sets of grippers 204.

[0033] Combination Figure 1 , Figure 2 and Figure 3 The multi-degree-of-freedom clamping assembly 2 also includes a sliding rack 205, a sliding gear 206, and a sliding drive motor 207. In practical applications, the sliding gear 206 is rotated by the sliding drive motor 207, which causes the sliding gear 206 and the sliding rack 205 to interact, thereby driving the loading table 201 to move horizontally.

[0034] Combination Figure 1 , Figure 2 and Figure 3 The sliding rack 205 is fixedly connected to the side wall of the gantry frame 1, and the sliding gear 206 is rotatably disposed on one side of the loading table 201 and meshes with the sliding rack 205. When the sliding rack 205 and the sliding gear 206 mesh, the sliding gear 206 is driven to rotate, thereby generating an interaction force between the sliding gear 206 and the sliding rack 205, which in turn drives the loading table 201 to slide horizontally.

[0035] Combination Figure 2 and Figure 3The sliding drive motor 207 is fixedly mounted on one side of the loading table 201, and the output shaft of the sliding drive motor 207 is fixedly connected to the sliding gear 206. The sliding drive motor 207 provides power, and the operation of the sliding drive motor 207 is controlled to drive the sliding gear 206 to rotate.

[0036] Combination Figure 4 and Figure 5 The multi-degree-of-freedom clamping assembly 2 also includes a lifting rack 208, a lifting drive motor 209, and a lifting gear 210. The lifting rack 208 is fixedly connected to the side wall of the lifting arm 202, and the lifting drive motor 209 is fixedly mounted on one side of the loading table 201. The lifting gear 210 is fixedly connected to the output shaft of the lifting drive motor 209. The operation of the lifting drive motor 209 drives the lifting gear 210 to rotate, thereby enabling the lifting gear 210 to adjust and control the lifting arm 202 in conjunction with the lifting rack 208, thus realizing the function of adjusting the lifting and moving movement of the clamping table 203.

[0037] Combination Figure 4 and Figure 6 The multi-degree-of-freedom clamping assembly 2 also includes an electric telescopic rod 211 and a linkage ring 212. The electric telescopic rod 211 is fixedly installed inside the lifting arm 202. The piston rod of the electric telescopic rod 211 is fixedly connected to the linkage ring 212. The linkage ring 212 is installed inside the clamping worktable 203, and the linkage ring 212 is hinged to one end of the multiple sets of grippers 204 located inside the clamping worktable 203. By controlling the extension and retraction of the piston rod inside the electric telescopic rod 211, the linkage ring 212 can drive the multiple sets of grippers 204 to retract or expand as the piston rod extends and retracts, thereby realizing the function of clamping and releasing the flange to be processed.

[0038] Combination Figure 1 , Figure 2 and Figure 4 The dual-station rounding assembly 3 is located below the clamping worktable 203. The dual-station rounding assembly 3 includes a transfer table 301, a rounding table 302, an extension assembly 303, multiple sets of hydraulic extension components, and multiple sets of synchronous positioning components. In practical applications, the transfer table 301 is used to transfer and limit the flange to be processed, the rounding table 302 is used to support and limit the flange to be processed, and the operation of the multiple sets of hydraulic extension components performs rounding processing on the flange to be processed placed on the rounding table 302.

[0039] Combination Figure 1 and Figure 2The transfer table 301 and the rounding table 302 are both located below the clamping worktable 203. By supporting the flange to be processed by the transfer table 301, the flange rounding machine presents a situation where "one flange is in the processing state while the other flange is in the waiting state", making the connection between the workpiece transfer and the rounding station during the flange processing smoother.

[0040] Combination Figure 1 The dual-station circular assembly 3 also includes refractory filler 304 and multiple sets of support rings 305. The refractory filler 304 is filled above the transfer table 301. The refractory filler 304 provides support, limiting, and heat insulation for the support rings 305.

[0041] Combination Figure 1 The multiple sets of support rings 305 are all annular components with open ends, and are evenly arranged above the refractory packing 304. The multiple sets of support rings 305 are used to support and limit the flange to be processed.

[0042] Combination Figure 1 and Figure 2 The circular platform 302 is positioned on one side of the transfer platform 301, and the lifting assembly 303 is rotatably positioned above the circular platform 302. The lifting assembly 303 serves to assemble and fix the hydraulic lifting components. Simultaneously, by rotating the lifting assembly 303, the positions of multiple sets of hydraulic lifting components are adjusted, enabling these components to perform circular machining on different positions of the flange to be processed, thus improving the effectiveness and accuracy of flange circular machining.

[0043] Combination Figure 2 , Figure 4 and Figure 7 The dual-station rounding assembly 3 includes a rotating shaft 306, a drive gear 307, a transmission gear 308, and a rotating motor 309. In practical applications, the rotating motor 309 drives the transmission gear 308 to rotate, which in turn drives the rotating shaft 306 to rotate. This, in turn, causes the rotating shaft 306 to drive the jacking assembly 303 to rotate synchronously, thereby achieving the function of adjusting the position of the hydraulic jacking component.

[0044] Combination Figure 2 , Figure 4 and Figure 7 The rotating shaft 306 is rotatably connected to the truncated cone 302, and one end of the rotating shaft 306 is fixedly connected to the bottom surface of the top extension assembly 303. The rotating shaft 306 serves to limit the assembly position of the truncated cone 302. At the same time, the rotation of the top extension assembly 303 is controlled by rotating the rotating shaft 306.

[0045] Combination Figure 2 , Figure 4 and Figure 7The other end of the rotating shaft 306 is fixedly connected to the drive gear 307. The transmission gear 308 is fixedly disposed below the frustum 302. The output shaft of the transmission gear 308 is fixedly connected to a rotary motor 309, which meshes with the drive gear 307. The rotating shaft 306 is driven to rotate by the cooperation of the transmission gear 308, the rotary motor 309, and the drive gear 307.

[0046] Combination Figure 4 and Figure 7 Multiple sets of hydraulic jacking components are fixedly installed inside the jacking assembly 303 for jacking and rounding the flange. The hydraulic jacking components include a jacking hydraulic cylinder 310, a jacking piston rod 311, and a jacking plate 312. The jacking hydraulic cylinder 310 is fixedly installed inside the jacking assembly 303, and the jacking piston rod 311 is slidably installed inside the jacking hydraulic cylinder 310. The jacking plate 312 is fixedly connected to one end of the jacking piston rod 311 located outside the jacking hydraulic cylinder 310. The extension and retraction states of the jacking piston rod 311 are controlled by controlling the hydraulic oil delivery state inside the jacking hydraulic cylinder 310, thereby controlling the extrusion forming operation state of the jacking plate 312.

[0047] In addition, the extension assembly 303 has an oil inlet groove. This allows for the connection of the oil inlet pipe and the oil outlet pipe to the extension hydraulic cylinder 310, thereby facilitating the control of the oil inlet and outlet states of the extension hydraulic cylinder 310.

[0048] Combination Figure 2 , Figure 4 and Figure 7 Multiple sets of synchronous positioning components are arranged above the truncated cone 302 for auxiliary positioning and safety protection of the flange. The synchronous positioning components include multiple sets of support guide blocks 313, multiple sets of positioning blocks 314, and multiple adjusting screws 315. The multiple sets of support guide blocks 313 are all fixedly arranged above the truncated cone 302. The multiple sets of support guide blocks 313 support and limit the flange to be processed, so that there is a gap between the bottom of the flange to be processed and the upper side of the truncated cone 302, which facilitates the subsequent clamping of the flange to be processed by multiple sets of grippers 204.

[0049] Combination Figure 2 , Figure 4 and Figure 7 Multiple sets of positioning blocks 314 are disposed above the support guide block 313 and are slidably connected to the support guide block 313. The multiple sets of positioning blocks 314 are staggered with the gripper 204. At the same time, the multiple sets of positioning blocks 314 synchronously position the flange to be processed placed on the outside of the top extension assembly 303, ensuring the centering of the flange to be processed when it is unloaded, and avoiding the deformation of the flange to be processed due to uneven force during the expansion of the multiple sets of top extension plates 312.

[0050] Combination Figure 2 , Figure 4 and Figure 7 Multiple adjusting screws 315 are threadedly connected to the lower part of the positioning block 314. Multiple sets of support guide blocks 313 each have a clearance groove on their upper part. The adjusting screws 315 are rotatably positioned within the clearance groove. One end of each adjusting screw 315 is rotatably connected to the top plate 312, and the other end is slidably connected to the support guide block 313. The positioning block 314 is adjusted by driving the adjusting screws 315 to rotate, enabling the positioning block 314 to synchronously position flanges of different diameters. This ensures the alignment of the flange to be processed on the entire circular platform 302 and prevents deformation of the flange due to uneven stress.

[0051] In practical use, the heated flange to be processed is placed above the transfer table 301. The lifting drive motor 209 drives the lifting gear 210 to rotate, so that the lifting gear 210 can adjust and control the lifting arm 202 in cooperation with the lifting rack 208. Under the drive of the lifting arm 202, the clamping worktable 203 moves multiple sets of grippers 204 to the outside of the flange to be processed on the transfer table 301. The multiple sets of grippers 204 are closed by retracting the piston rod inside the electric telescopic rod 211, thereby clamping the flange to be processed.

[0052] Subsequently, the flange to be processed is moved by controlling the lifting arm 202 to rise and the loading worktable 201 to slide horizontally, moving the flange to be processed above the circular table 302 and placing it on top of the circular table 302. During the placement of the flange to be processed, multiple sets of support guide blocks 313 are used to center and position the flange to be processed, ensuring the accuracy of the flange placement.

[0053] Subsequently, the flange to be processed is extruded and formed by controlling the outward expansion of multiple sets of top extension plates 312. Simultaneously, during the movement of the multiple sets of top extension plates 312, the support guide block 313 moves synchronously under the action of the adjusting screw 315. This ensures that while the top extension plates 312 extrude the flange from the inside out, the support guide block 313 does not extrude the flange from the outside in, preventing deformation caused by simultaneous internal and external forces and guaranteeing a perfectly round flange. After rounding, the processed flange is transferred by the closing of multiple sets of grippers 204 and by lifting and horizontal movement.

[0054] This specific embodiment is merely an explanation of this application and is not intended to limit it. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this application.

Claims

1. A gantry-type flange rounding machine, characterized in that, include: Gantry frame (1); A multi-degree-of-freedom clamping assembly (2) is disposed on one side of the gantry (1). The multi-degree-of-freedom clamping assembly (2) includes a loading worktable (201), a lifting arm (202), a clamping worktable (203), and multiple sets of grippers (204). The loading worktable (201) is horizontally slidably disposed on one side of the gantry (1), and the lifting arm (202) is vertically slidably disposed on one side of the loading worktable (201). The clamping worktable (203) is fixedly connected to the bottom of the lifting arm (202), and the multiple sets of grippers (204) are hingedly disposed below the clamping worktable (203). The dual-station rounding assembly (3) is located below the clamping worktable (203). The dual-station rounding assembly (3) includes a transfer table (301), a rounding platform (302), an extension assembly (303), multiple sets of hydraulic extension components, and multiple sets of synchronous positioning components. The transfer table (301) and the rounding platform (302) are both located below the clamping worktable (203), and the rounding platform (302) is located on one side of the transfer table (301). The extension assembly (303) is rotatably located above the rounding platform (302). Multiple sets of hydraulic extension components are fixedly located inside the extension assembly (303) for extending and rounding the flange. Multiple sets of synchronous positioning components are located above the rounding platform (302) for auxiliary positioning and safety protection of the flange.

2. The gantry flange rounding machine according to claim 1, characterized in that: The multi-degree-of-freedom clamping assembly (2) further includes a sliding rack (205), a sliding gear (206), and a sliding drive motor (207). The sliding rack (205) is fixedly connected to the side wall of the gantry (1). The sliding gear (206) is rotatably disposed on one side of the loading table (201) and meshes with the sliding rack (205). The sliding drive motor (207) is fixedly disposed on one side of the loading table (201), and the output shaft of the sliding drive motor (207) is fixedly connected to the sliding gear (206).

3. The gantry flange rounding machine according to claim 1, characterized in that: The multi-degree-of-freedom clamping assembly (2) also includes a lifting rack (208), a lifting drive motor (209), and a lifting gear (210). The lifting rack (208) is fixedly connected to the side wall of the lifting arm (202), and the lifting drive motor (209) is fixedly installed on one side of the loading workbench (201).

4. A gantry flange rounding machine according to claim 3, characterized in that: The lifting gear (210) is fixedly connected to the output shaft of the lifting drive motor (209), and the lifting gear (210) meshes with the lifting rack (208).

5. A gantry flange rounding machine according to claim 1, characterized in that: The multi-degree-of-freedom clamping assembly (2) also includes an electric telescopic rod (211) and a linkage ring (212). The electric telescopic rod (211) is fixedly installed inside the lifting arm (202). The piston rod of the electric telescopic rod (211) is fixedly connected to the linkage ring (212). The linkage ring (212) is installed inside the clamping worktable (203), and the linkage ring (212) is hinged to one end of the multiple sets of grippers (204) located inside the clamping worktable (203).

6. A gantry flange rounding machine according to claim 1, characterized in that: The dual-station circular assembly (3) also includes refractory filler (304) and multiple sets of support rings (305). The refractory filler (304) is filled above the transfer table (301). The multiple sets of support rings (305) are all ring-shaped components with open ends, and the multiple sets of support rings (305) are evenly arranged above the refractory filler (304).

7. A gantry flange rounding machine according to claim 1, characterized in that: The dual-station circular assembly (3) includes a rotating shaft (306), a drive gear (307), a transmission gear (308), and a rotating motor (309). The rotating shaft (306) is rotatably connected to the circular platform (302). One end of the rotating shaft (306) is fixedly connected to the bottom surface of the top extension assembly (303). The other end of the rotating shaft (306) is fixedly connected to the drive gear (307). The transmission gear (308) is fixedly disposed below the circular platform (302). The output shaft of the transmission gear (308) is fixedly connected to the rotating motor (309). The rotating motor (309) meshes with the drive gear (307).

8. A gantry flange rounding machine according to claim 1, characterized in that: The hydraulic jacking component includes a jacking hydraulic cylinder (310), a jacking piston rod (311), and a jacking plate (312). The jacking hydraulic cylinder (310) is fixedly installed inside the jacking assembly (303). The jacking piston rod (311) is slidably installed inside the jacking hydraulic cylinder (310). The jacking plate (312) is fixedly connected to one end of the jacking piston rod (311) located outside the jacking hydraulic cylinder (310). An oil inlet groove is provided inside the jacking assembly (303).

9. A gantry flange rounding machine according to claim 8, characterized in that: The synchronous positioning component includes multiple sets of support guide blocks (313), multiple sets of positioning blocks (314), and multiple adjusting screws (315). The multiple sets of support guide blocks (313) are fixedly set above the entire truncated cone (302). The multiple sets of positioning blocks (314) are set above the support guide blocks (313) and are slidably connected to the support guide blocks (313). The multiple sets of positioning blocks (314) are staggered with the grippers (204).

10. A gantry flange rounding machine according to claim 9, characterized in that: Multiple adjusting screws (315) are threadedly connected to the lower part of the positioning block (314). Multiple sets of support guide blocks (313) are provided with clearance grooves on their upper parts. The adjusting screws (315) are rotatably disposed in the clearance grooves. One end of each adjusting screw (315) is rotatably connected to the top plate (312), and the other end of each adjusting screw (315) is slidably connected to the support guide block (313).

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