Double-side synchronous welding tool for stiffening ring and supporting ring of pressure steel pipe

Abstract

The double-side synchronous welding tool for the stiffening ring and the supporting ring of the pressure steel pipe comprises a base, groove bodies are formed in the two ends of the top of the base, and a transmission mechanism is arranged between the inner sides of the groove bodies. A smoke purifying assembly is arranged in the middle of the top end of a top plate, a negative pressure fan is started when welding work of a pressure steel pipe stiffening ring and a supporting ring is conducted, harmful smoke generated in the welding process is sucked into a purifying barrel through a suction pipe via a gas conveying hose, and filtering, adsorption and purification treatment are conducted through an activated carbon agent in a filter box; the purified smoke is discharged into the external environment through the exhaust hole, and the purification cylinder is fixedly mounted on the mounting seat through threaded connection by using the mounting sleeve, so that the purification cylinder can be conveniently detached to replace an activated carbon medicament in the filter box to ensure the smoke purification effect of the structure; therefore, harmful gas generated by welding is prevented from being directly discharged into the working environment to damage the health and safety of workers, and the welding tool is safer and more environmentally friendly in operation.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe processing, in particular to a tool for synchronously welding a stiffening ring and a supporting ring of a pressure steel pipe on both sides. Background Art

[0002] Penstock is a steel pipe used to transport extremely high pressure water flow. Penstock needs to withstand greater pressure when transporting high pressure water flow. Therefore, during the manufacturing process of penstock, it is necessary to weld stiffening rings and support rings on the outside to further improve its compressive strength, and welding tools are required during welding work; For example, a pressure steel pipe stiffening ring welding device disclosed in the invention with the authorization announcement number CN113601051A includes a gantry, a welding device with upper and lower telescopic frames mounted on the top of the gantry, and rolling positioning devices respectively arranged on opposite sides of the gantry, each rolling positioning device includes: a mounting plate, which is fixed on one side of the gantry, and a turntable is rotatably installed on the mounting plate through the mounting plate; a rolling assembly, which is arranged on the outside of the mounting plate, including a large gear fixed on the mounting plate, a small gear meshing with the outer periphery of the large gear, an extension plate fixed on the turntable, and a rotating motor fixed on the outer surface of the extension plate; a positioning assembly, which includes a telescopic rod fixed on the turntable, a fixed block fixed on the free end of the telescopic rod, and at least three first jacks radiated at equal intervals along the circumference of the fixed block. The present invention has the beneficial effects of increasing the rotation effect, reducing the probability of slippage, and improving the welding quality on the basis of a labor-saving power source. However, in the application process of this technical solution, certain harmful gases will be generated during welding, and the direct emission of welding fumes will pollute the air in the working environment of the welding tooling, thereby endangering the health and safety of the workers. There is a technical problem that the harmful gases generated by welding cannot be effectively purified before being discharged to ensure the health and safety of the workers. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a double-sided synchronous welding tool for a stiffening ring and a support ring of a pressure steel pipe, which can solve the problem that certain harmful gases will be generated during welding. The direct emission of welding smoke will pollute the air in the working environment of the welding tool, thereby endangering the health and safety of the workers. There is a technical problem that the harmful gases generated by welding cannot be effectively purified before being discharged to ensure the health and safety of the workers.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a double-sided synchronous welding tool for a stiffening ring support ring of a pressure steel pipe, comprising a base, two ends of the top of the base are provided with a trough body, a transmission mechanism is provided between the inner sides of the trough body, a lifting cylinder is provided at the middle position of the two sides of the top of the base, a top plate is provided between the top ends of the lifting cylinders, a welding machine is provided at the bottom of the top plate, a welding head is provided at the bottom of the welding machine, a connecting frame is provided at the top of the welding machine, an electric control cabinet is provided at the rear end of one side of the top of the base, a suction pipe is provided at the rear end of the connecting frame, and the top of the top plate A mounting seat is provided at the middle position, a gas delivery hose is plugged into the rear end of the mounting seat, a purification cylinder is provided on the top of the mounting seat, a negative pressure fan is installed between the inner side walls of the purification cylinder near the top, a filter box is provided between the inner side walls of the purification cylinder near the bottom, an activated carbon agent is provided inside the filter box, an exhaust hole is provided at the top end of the inner side wall of the purification cylinder, a mounting sleeve is provided at the bottom end of the inner side wall of the purification cylinder, an adjustment component is provided between the bottom of the top plate and the top of the connecting frame, and an adjustment applicable component is provided between the two sides of the bottom of the trough body and the two sides of the top of the base.

[0005] As a preferred technical solution of the present invention, the outside of the mounting sleeve is provided with an external thread, the inner side wall of the mounting seat is provided with an internal thread matching the external thread near the top, and the mounting sleeve is fixed to the inner side of the mounting seat by a threaded connection.

[0006] As a preferred technical solution of the present invention, the bottom end of the gas hose is fixedly connected to the top end of the suction pipe, and the gas hose and the suction pipe are communicated, and the exhaust holes are arranged at equal intervals at the top end of the inner side wall of the purification cylinder.

[0007] As a preferred technical solution of the present invention, the transmission mechanism includes a driving shaft, which is arranged at the top between the inner side of the front end slot body at the top of the base, a linkage shaft is arranged at the top between the inner side of the rear end slot body at the top of the base, a driving motor is arranged at the top of the front end of one side of the slot body, a transmission roller is arranged on the outside of the driving shaft, a linkage roller is arranged on the outside of the linkage shaft, and safety grooves are arranged on the outside of the transmission roller and the linkage roller.

[0008] As a preferred technical solution of the present invention, one side of the driving shaft passes through the top of one side of the inner part of the groove body and is connected to the output end of the driving motor, and the safety grooves are arranged at equal intervals outside the driving roller and the linkage roller.

[0009] As a preferred technical solution of the present invention, the adjustment component includes a shell, a screw rod is arranged at the middle position between the two sides inside the shell, an adjusting thread sleeve is arranged at the middle position outside the screw rod, a servo motor is arranged at the middle position of one side of the shell, one side of the screw rod passes through one side inside the shell and is connected to the output end of the servo motor, a stabilizing groove is arranged at the middle position of the bottom end inside the shell, and the top end of the connecting frame passes through the stabilizing groove and is fixedly connected to the bottom end of the adjusting thread sleeve.

[0010] As a preferred technical solution of the present invention, the adjustment applicable component includes an adjustment slide rail, the adjustment slide rail is arranged on both sides of the top of the base, and the two sides of the bottom of the trough body are fixedly connected with movable sliders, and one end of the top of the movable slider is provided with a connecting stud, and the top of the connecting stud passes through the top of the inside of the adjustment slide rail, and fastening nuts are provided outside the connecting studs at both ends of the top of the adjustment slide rail.

[0011] As a preferred technical solution of the present invention, the adjusting slide rails are symmetrically arranged on the top of the base, the movable slider is embedded in the interior of the adjusting slide rails, and the movable slider can slide in the interior of the adjusting slide rails.

[0012] Compared with the prior art, the present invention can achieve the following beneficial effects: 1. By setting a smoke purification component at the middle position of the top of the top plate, when the pressure steel pipe stiffening ring and the support ring are welded, the negative pressure fan is started to suck the harmful smoke generated during the welding process into the purification cylinder through the suction pipe and the gas hose, and the activated carbon agent set in the filter box is used for filtering, adsorption and purification. The purified smoke is then discharged to the external environment through the exhaust hole, and the purification cylinder is fixedly installed on the mounting seat through a threaded connection using a mounting sleeve, so that the purification cylinder can be easily disassembled to replace the activated carbon agent in the filter box to ensure the smoke purification effect of the structure, thereby avoiding the direct discharge of harmful gases generated by welding into the working environment to damage the health and safety of the workers, making the operation of the welding tool safer and more environmentally friendly; 2. By arranging an adjustment component between the bottom of the top plate and the top of the connecting frame, when in use, the servo motor is started to drive the screw rod to rotate, which can drive the adjustment thread sleeve to move horizontally outside the screw rod, thereby driving the welding machine to move horizontally under the top plate through the connecting frame. At the same time, the connecting frame is stabilized by the stabilizing groove, that is, the welding machine is stabilized, so that the position of the positioning welding machine can be accurately and stably adjusted to weld the stiffening rings and support rings at different positions outside the pressure steel pipe, further improving the efficiency and practicality of the welding tooling, and having strong feasibility; 3. By arranging an adjustment component between the two sides of the bottom of the trough body and the two sides of the top of the base, the position spacing of the two groups of trough bodies on the top of the base can be adjusted by sliding the movable slider in the adjustment slide rail during use, thereby adjusting the spacing between the transmission roller and the linkage roller to adapt to pressure steel pipes of different diameters, and after adjusting in place, tightening the fastening nut arranged on the outside of the connecting stud can stabilize the movable slider and the trough body, thereby effectively improving the applicability of the welding tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention; Figure 3 It is a schematic diagram of the top view of the structure of the present invention; Figure 4 It is a schematic diagram of a partial cross-sectional structure of the present invention; Figure 5 It is a schematic diagram of the side cross-sectional structure of the purification cartridge of the present invention; Figure 6 For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0014] Among them: 1. Base; 2. Adjustment slide rail; 3. Trough body; 4. Transmission roller; 5. Safety groove; 6. Drive shaft; 7. Lifting cylinder; 8. Electric control cabinet; 9. Top plate; 10. Shell; 11. Linkage shaft; 12. Purification cylinder; 13. Mounting seat; 14. Welding machine; 15. Servo motor; 16. Linkage roller; 17. Fastening nut; 18. Gas hose; 19. Suction pipe; 20. Welding head; 21. Drive motor; 22. Screw rod; 23. Stable groove; 24. Adjustment thread sleeve; 25. Connecting frame; 26. Mounting sleeve; 27. Filter box; 28. Negative pressure fan; 29. ​​Exhaust hole; 30. Activated carbon agent; 31. Connecting stud; 32. Moving slider. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels. Example

[0016] Please refer to Figure 1-6As shown, the present invention provides a double-sided synchronous welding tool for a stiffening ring support ring of a pressure steel pipe, including a base 1, two ends of the top of the base 1 are provided with a trough body 3, a rear end of one side of the top of the base 1 is provided with an electric control cabinet 8, and a skilled worker can control the welding tool through the electric control cabinet 8, a driving shaft 6 is provided at the top between the inner sides of the trough body 3 at the front end of the top of the base 1, a linkage shaft 11 is provided at the top between the inner sides of the trough body 3 at the rear end of the top of the base 1, a driving motor 21 is provided at the top of the front end of one side of the trough body 3, one side of the driving shaft 6 passes through the top of one side of the inside of the trough body 3 and is connected to the output end of the driving motor 21, a transmission roller 4 is provided on the outside of the driving shaft 6, a linkage roller 16 is provided on the outside of the linkage shaft 11, and a safety groove 5 is provided on the outside of the driving roller 4 and the linkage roller 16 , and the safety grooves 5 are arranged at equal intervals outside the driving roller 4 and the linkage roller 16, the pressure steel pipe is hung on the top between the driving roller 4 and the linkage roller 16, and the stiffening ring and the support ring sleeved on the outside of the pressure steel pipe are inserted into the safety groove 5 to ensure the stable placement of the pressure steel pipe, and the driving motor 21 is started to drive the driving shaft 6 to drive the driving roller 4 to rotate, so as to rotate the pressure steel pipe to adjust the welding position, and a lifting cylinder 7 is arranged at the middle position of both sides of the top of the base 1, and a top plate 9 is arranged between the tops of the lifting cylinders 7, and a welding machine 14 is arranged at the bottom of the top plate 9, and a welding head 20 is arranged at the bottom of the welding machine 14, and the stiffening ring and the support ring are welded and fixed to the outside of the pressure steel pipe by the welding machine 14 using the welding head 20, and a connecting frame 25 is arranged at the top of the welding machine 14; As a further implementation of this embodiment, Figure 1-6As shown, a suction pipe 19 is provided at the rear end of the connecting frame 25, a mounting seat 13 is provided at the middle position of the top end of the top plate 9, a gas hose 18 is plugged at the rear end of the mounting seat 13, the bottom end of the gas hose 18 is fixedly connected to the top end of the suction pipe 19, and the gas hose 18 and the suction pipe 19 are communicated, a purification cylinder 12 is provided on the top of the mounting seat 13, a negative pressure fan 28 is installed near the top between the inner side walls of the purification cylinder 12, a filter box 27 is provided near the bottom between the inner side walls of the purification cylinder 12, and an activated carbon agent 30 is provided inside the filter box 27. When welding is in progress, the negative pressure fan 28 is started to suck the harmful fumes generated during welding into the interior of the purification cylinder 12 through the suction pipe 19 and the gas hose 18, and enters the activated carbon agent 30 provided in the filter box 27. The filter adsorption purification treatment is carried out, and an exhaust hole 29 is arranged at the top of the inner side wall of the purification cylinder 12. The exhaust holes 29 are arranged at equal intervals at the top of the inner side wall of the purification cylinder 12. The purified smoke is then discharged into the external environment through the exhaust holes 29. A mounting sleeve 26 is arranged at the bottom of the inner side wall of the purification cylinder 12. The outer side of the mounting sleeve 26 is provided with an external thread. The inner side wall of the mounting seat 13 is provided with an internal thread matching the external thread near the top. The mounting sleeve 26 is fixed to the inner side of the mounting seat 13 by threaded connection. The purification cylinder 12 can be easily disassembled to replace the activated carbon agent 30 in the filter box 27 to ensure the smoke purification effect of the structure, thereby avoiding the direct discharge of harmful gases generated by welding into the working environment to damage the health and safety of the workers, making the operation of the welding tool safer and more environmentally friendly; When welding the stiffening ring and support ring of the pressure steel pipe, the negative pressure fan 28 is started to suck the harmful smoke generated during the welding process into the interior of the purification cylinder 12 through the suction pipe 19 and the gas hose 18, and the activated carbon agent 30 set in the filter box 27 is filtered, adsorbed and purified. The purified smoke is then discharged to the external environment through the exhaust hole 29, and the purification cylinder 12 is fixedly installed on the mounting seat 13 by threaded connection using the mounting sleeve 26, so that the purification cylinder 12 can be easily disassembled to replace the activated carbon agent 30 in the filter box 27; As a further implementation of this embodiment, Figure 1 , Figure 2 and Figure 4As shown, an adjustment component is arranged between the bottom of the top plate 9 and the top of the connecting frame 25, and the adjustment component includes a shell 10, a screw rod 22 is arranged at the middle position between the two sides inside the shell 10, an adjustment thread sleeve 24 is arranged at the middle position outside the screw rod 22, a servo motor 15 is arranged at the middle position of one side of the shell 10, one side of the screw rod 22 passes through one side inside the shell 10 and is connected to the output end of the servo motor 15, a stabilizing groove 23 is arranged at the middle position of the bottom end of the shell 10, the top end of the connecting frame 25 passes through the stabilizing groove 23 and is fixedly connected with the bottom end of the adjusting thread sleeve 24, the screw rod 22 is driven to rotate by the servo motor 15 to drive the adjusting thread sleeve 24 to move laterally outside the screw rod 22, thereby driving the welding machine 14 to move horizontally under the top plate 9 through the connecting frame 25, and correspondingly the position of the positioning welding machine 14 can be adjusted to perform welding processing on the stiffening rings and support rings arranged at different positions outside the pressure steel pipe, further improving the efficiency and practicality of the welding tooling; As a further implementation of this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, an adjustment component is arranged between the two sides of the bottom of the trough body 3 and the two sides of the top of the base 1, and the adjustment component includes an adjustment rail 2, which is arranged on both sides of the top of the base 1. The adjustment rail 2 is symmetrically arranged on the top of the base 1, and the two sides of the bottom of the trough body 3 are fixedly connected with a movable slider 32, which is embedded in the inside of the adjustment rail 2, and the movable slider 32 can slide inside the adjustment rail 2. By sliding and adjusting the position spacing of the movable slider 32 in the adjustment rail 2, the position spacing of the two groups of trough bodies 3 on the top of the base 1 can be adjusted. The distance between the transmission roller 4 and the linkage roller 16 is adjusted to suit different diameters of pressure steel pipes. A connecting stud 31 is arranged at one end of the top of the movable slider 32. The top of the connecting stud 31 penetrates the top of the inner side of the adjustment rail 2. Fastening nuts 17 are arranged outside the connecting studs 31 at both ends of the top of the adjustment rail 2. After the distance between the transmission roller 4 and the linkage roller 16 is adjusted to suit the diameter of the pressure steel pipe to be welded, the fastening nuts 17 outside the connecting stud 31 can be tightened to stabilize the movable slider 32 and the trough body 3, thereby effectively improving the applicability of the welding tooling. When in use, the position spacing of the two groups of trough bodies 3 on the top of the base 1 can be adjusted by sliding the movable slider 32 in the adjustment rail 2, thereby adjusting the spacing between the transmission roller 4 and the linkage roller 16 to adapt to pressure steel pipes of different diameters, and after adjusting to the right position, tighten the fastening nut 17 set on the outside of the connecting stud 31 to stabilize the movable slider 32 and the trough body 3; Specific working principle: When using the welding fixture, first slide and adjust the position spacing of the movable slider 32 in the adjustment slide rail 2 according to the diameter of the pressure steel pipe to be welded, so as to adjust the position spacing of the two groups of trough bodies 3 on the top of the base 1, thereby adjusting the spacing between the transmission roller 4 and the linkage roller 16 to suit the pressure steel pipe to be welded. After adjusting in place, tighten the fastening nut 17 set on the outside of the connecting stud 31 to stabilize the movable slider 32 and the trough body 3, then hang the pressure steel pipe on the top between the transmission roller 4 and the linkage roller 16, and insert the stiffening ring and support ring set on the outside of the pressure steel pipe into the safety groove 5 to ensure the stable placement of the pressure steel pipe, and then start the servo motor 15 to drive the screw rod 22 to rotate, which can drive the adjusting thread sleeve 24 to move horizontally outside it, thereby driving the welding machine 14 to move horizontally under the top plate 9 through the connecting frame 25, and at the same time limit the stable connection through the stabilizing groove 23. The frame 25 is used to stabilize the welding machine 14, so that the position of the positioning welding machine 14 can be accurately and stably adjusted to align the position of the stiffening ring and the support ring. After the position of the welding machine 14 is positioned, the top plate 9 is lowered by the lifting cylinder 7 so that the welding head 20 contacts the welding point, and the welding machine 14 can be started to weld the stiffening ring and the support ring to the outside of the pressure steel pipe through the welding head 20. At the same time, the driving motor 21 is started to drive the driving shaft 6 to drive the transmission roller 4 to rotate, so that the pressure steel pipe can be rotated to adjust the welding position. When welding is in progress, the negative pressure fan 28 is started to suck the harmful fumes generated during the welding process into the interior of the purification tube 12 through the suction pipe 19 and the gas hose 18, and the activated carbon agent 30 arranged in the filter box 27 is filtered, adsorbed and purified, and the purified fume is discharged to the external environment through the exhaust hole 29, so as to perform safe, environmentally friendly and efficient welding operations.

[0017] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tool for synchronously welding a penstock stiffening ring support ring on both sides, comprising a base (1), characterized in that: Grooves (3) are provided at both ends of the top of the base (1), a transmission mechanism is provided between the inner sides of the grooves (3), a lifting cylinder (7) is provided at the middle position of both sides of the top of the base (1), a top plate (9) is provided between the top ends of the lifting cylinders (7), a welding machine (14) is provided at the bottom of the top plate (9), a welding head (20) is provided at the bottom of the welding machine (14), a connecting frame (25) is provided at the top of the welding machine (14), an electric control cabinet (8) is provided at the rear end of one side of the top of the base (1), a suction pipe (19) is provided at the rear end of the connecting frame (25), a mounting seat (13) is provided at the middle position of the top of the top plate (9), and the rear end of the mounting seat (13) is inserted into the mounting seat (13). A gas delivery hose (18) is connected, a purification cylinder (12) is arranged on the top of the mounting seat (13), a negative pressure fan (28) is installed between the inner side walls of the purification cylinder (12) near the top, a filter box (27) is arranged between the inner side walls of the purification cylinder (12) near the bottom, an activated carbon agent (30) is arranged inside the filter box (27), an exhaust hole (29) is arranged at the top end of the inner side wall of the purification cylinder (12), a mounting sleeve (26) is arranged at the bottom end of the inner side wall of the purification cylinder (12), an adjustment component is arranged between the bottom of the top plate (9) and the top of the connecting frame (25), and an adjustment component is arranged between the two sides of the bottom of the tank body (3) and the two sides of the top of the base (1).

2. According to claim 1, a penstock stiffening ring support ring double-sided synchronous welding tool is characterized in that: The outside of the mounting sleeve (26) is provided with an external thread, and the inner side wall of the mounting seat (13) is provided with an internal thread matching the external thread at a position close to the top, and the mounting sleeve (26) is fixed to the inner side of the mounting seat (13) by means of a threaded connection.

3. The tooling for synchronously welding two sides of a stiffening ring and a support ring of a pressure steel pipe according to claim 1, characterized in that: The bottom end of the gas delivery hose (18) and the top end of the suction pipe (19) are fixedly connected, and the gas delivery hose (18) and the suction pipe (19) are in communication, and the exhaust holes (29) are arranged at equal intervals at the top end of the inner side wall of the purification cylinder (12).

4. The tooling for synchronously welding two sides of a penstock stiffening ring and support ring according to claim 1, characterized in that: The transmission mechanism comprises a drive shaft (6), the drive shaft (6) being arranged at the top between the inner side of the front end slot body (3) at the top of the base (1), a linkage shaft (11) being arranged at the top between the inner side of the rear end slot body (3) at the top of the base (1), a drive motor (21) being arranged at the top of the front end of one side of the slot body (3), a drive roller (4) being arranged outside the drive shaft (6), a linkage roller (16) being arranged outside the linkage shaft (11), and safety grooves (5) being arranged outside the drive roller (4) and the linkage roller (16).

5. The tooling for synchronously welding two sides of a penstock stiffening ring and a support ring according to claim 4, characterized in that: One side of the driving shaft (6) passes through the top of one side of the interior of the groove body (3) and is connected to the output end of the driving motor (21), and the safety grooves (5) are arranged at equal intervals outside the driving roller (4) and the linkage roller (16).

6. The tooling for synchronously welding two sides of a penstock stiffening ring and a support ring according to claim 1, characterized in that: The adjustment component comprises a housing (10), a screw rod (22) is arranged at a middle position between two sides inside the housing (10), an adjustment thread sleeve (24) is arranged at a middle position outside the screw rod (22), a servo motor (15) is arranged at a middle position on one side of the housing (10), one side of the screw rod (22) passes through one side inside the housing (10) and is connected to an output end of the servo motor (15), a stabilizing groove (23) is arranged at a middle position at the bottom end inside the housing (10), and a top end of the connecting frame (25) passes through the stabilizing groove (23) and is fixedly connected to a bottom end of the adjustment thread sleeve (24).

7. The tooling for synchronously welding two sides of a penstock stiffening ring and a support ring according to claim 1, characterized in that: The adjustment applicable component comprises an adjustment rail (2), wherein the adjustment rail (2) is arranged on both sides of the top of the base (1), and movable sliders (32) are fixedly connected to both sides of the bottom of the trough body (3), and a connecting stud (31) is arranged at one end of the top of the movable slider (32), and the top of the connecting stud (31) passes through the top of the adjusting rail (2), and fastening nuts (17) are arranged outside the connecting studs (31) at both ends of the top of the adjusting rail (2).

8. The tooling for synchronously welding two sides of a stiffening ring and a support ring of a pressure steel pipe according to claim 7, characterized in that: The adjusting slide rail (2) is symmetrically arranged on the top of the base (1), and the movable slider (32) is embedded in the interior of the adjusting slide rail (2), and the movable slider (32) can slide inside the adjusting slide rail (2).

Images