CN111195791A - Assembling and welding manufacturing process of large pressure container - Google Patents
Assembling and welding manufacturing process of large pressure container Download PDFInfo
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- CN111195791A CN111195791A CN202010211958.0A CN202010211958A CN111195791A CN 111195791 A CN111195791 A CN 111195791A CN 202010211958 A CN202010211958 A CN 202010211958A CN 111195791 A CN111195791 A CN 111195791A
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- end cover
- welding
- supporting mechanism
- groove
- supporting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
Abstract
The invention belongs to the technical field of pressure vessels, and particularly relates to a large-scale pressure vessel assembling and welding manufacturing process which is completed by matching large-scale pressure vessel assembling and welding manufacturing machinery, and specifically comprises the following steps: step one, mounting a cylinder body: inserting the bottom end of the cylinder body into the annular groove; step two, reserving welding seams: the mounting block is driven to slide through the electric sliding sleeve until the first supporting mechanism reaches the position above the top surface of the cylinder body; step three, placing an end cover: the end cover is lifted to the second supporting mechanism, and the end cover is supported through the first supporting mechanism and the second supporting mechanism; welding an end cover and a cylinder body: the barrel is driven to rotate through the base, and welding is carried out along the end cover and the edge of the barrel through a welding gun. When the welding method is adopted to weld the end cover and the cylinder body of the large-scale pressure container, the radial and axial deviation of the end cover can be avoided in the welding process, and the accuracy of the welding position of the end cover is improved.
Description
Technical Field
The invention belongs to the technical field of pressure vessels, and particularly relates to an assembling and welding manufacturing process for a large-scale pressure vessel.
Background
The pressure container is a closed device which contains gas or liquid and bears certain pressure. The pressure vessel has wide application, and is mainly used for the technical processes of heat transfer, mass transfer, reaction and the like, and storing and transporting gas or liquefied gas with pressure; it has important position and function in many departments of industry, civil use, military industry and the like and many fields of scientific research. The end cover is required to be welded on the cylinder body when the large-scale pressure container is assembled, the end cover and the cylinder body are firstly butted and fixed, and then the end cover and the cylinder body are welded along the joint of the end cover and the cylinder body through a welding gun, and the method has the following problems in the actual production process: (1) the end cover of the large pressure container has larger volume and heavier weight, and the inner surface and the outer surface of the end cover are cambered surfaces, so that the end cover is difficult to stably support in the welding process, and the end cover is easy to deviate along the radial direction of the cylinder body, thereby causing the position deviation of the end cover after welding; (2) because the side wall of the large pressure container is thick, a certain welding seam needs to be reserved between the end cover and the cylinder body during welding to ensure the welding strength; the end cover is easy to deviate along the axial direction of the cylinder body in the welding process, so that the width of a welding seam at each welding position is uneven, the position deviation of the end cover after welding is caused, and the adverse effect on the overall strength of a large pressure container is also caused.
Disclosure of Invention
Technical problem to be solved
The invention provides an assembly welding manufacturing process of a large pressure container, which aims to solve the following problems existing in the prior art when an end cover and a cylinder body of the large pressure container are welded: (1) the end cover of the large pressure container has larger volume and heavier weight, and the inner surface and the outer surface of the end cover are cambered surfaces, so that the end cover is difficult to stably support in the welding process, and the end cover is easy to deviate along the radial direction of the cylinder body, thereby causing the position deviation of the end cover after welding; (2) because the side wall of the large pressure container is thick, a certain welding seam needs to be reserved between the end cover and the cylinder body during welding to ensure the welding strength; the end cover is easy to deviate along the axial direction of the cylinder body in the welding process, so that the width of a welding seam at each welding position is uneven, the position deviation of the end cover after welding is caused, and the adverse effect on the overall strength of a large pressure container is also caused.
(II) technical scheme
In order to solve the technical problems, the invention adopts the following technical scheme:
the large-scale pressure vessel assembling, welding and manufacturing machine comprises a bottom plate which is horizontally arranged, a turntable is horizontally and rotatably arranged on the upper surface of the bottom plate, and a base is horizontally and fixedly arranged on the upper surface of the turntable. The upper surface of the base is provided with an annular groove which is matched with the pressure container barrel. The upper surface of the base is vertically and fixedly connected with a mounting column at the center of the annular groove.
The vertical spout of having seted up on the erection column, sliding mounting have with erection column surface complex electric sliding sleeve in the spout, and annular first guide way has been seted up to electric sliding sleeve's surface level. More than three first sliding blocks are arranged in the first guide groove in a sliding mode. The mounting column is fixedly provided with a fixed sleeve above the electric sliding sleeve, the outer surface of the fixed sleeve is horizontally provided with an annular second guide groove, and the second guide groove is internally provided with second sliding blocks the same as the first sliding blocks in quantity in a sliding manner. And a guide rod is fixedly arranged on the outer side of the second sliding block along the radial direction of the mounting column. The guide rod is slidably matched with an installation block, and a first supporting mechanism is arranged above the installation block. A rigid straight rod is installed below the installation block through a pin shaft, and the bottom end of the rigid straight rod is installed on the first sliding block through the pin shaft. And a second supporting mechanism is arranged at the top of the mounting column. The first sliding block is driven to move upwards through the electric sliding sleeve, the rigid straight rod is driven to move, and therefore the installation block is pushed to slide outwards along the guide rod, and the position of the first supporting mechanism is adjusted.
The assembly welding manufacturing process of the large pressure container comprises the following steps:
step one, mounting a cylinder body: and vertically hoisting the cylinder body onto the base, so that the bottom end of the cylinder body is inserted into the annular groove.
Step two, reserving welding seams: the rigid straight rod is driven to move by moving the electric sliding sleeve upwards, so that the mounting block is driven to slide outwards along the guide rod until the first supporting mechanism reaches the position above the top surface of the cylinder body, the height of the first supporting mechanism is adjusted, and the height of the first supporting mechanism is the same as the thickness of a welding seam.
Step three, placing an end cover: the end cover is lifted to the second supporting mechanism, the angle of the end cover is adjusted through the second supporting mechanism, the lower edge of the end cover is in a horizontal state, then the end cover is placed on the first supporting mechanism, and the end cover is supported through the first supporting mechanism and the second supporting mechanism together.
Welding an end cover and a cylinder body: the base drives the barrel to rotate, the welding gun welds along the end cover and the edge of the barrel, and the first supporting mechanism is pushed to move along the circumferential direction of the barrel in the welding process until the adjacent first supporting mechanisms are abutted together. The rigid straight rod is driven to move by moving the electric sliding sleeve downwards, so that the mounting block and the first supporting mechanism are driven to slide towards the inner side along the guide rod, the first supporting mechanism is moved out of a welding seam between the end cover and the barrel, and then a gap formed after the first supporting mechanism is moved out is welded through the welding gun.
As a preferable technical solution of the present invention, the first support mechanism includes a lower support plate, a first thread groove, a first screw, an upper support plate, an air hole, a second thread groove, and a second screw. The lower support plate is horizontally and fixedly arranged on the mounting block, a first thread groove is vertically formed in the upper surface of the lower support plate, a first screw is arranged in the first thread groove, and the upper support plate is horizontally and fixedly arranged at the top of the first screw. An air hole communicated with the first thread groove is vertically arranged in the upper supporting plate and the first screw rod in a penetrating mode. A second thread groove communicated with the first thread groove is formed in the lower supporting plate, and a second screw is installed in the second thread groove. The distance between the top surface of the upper supporting plate and the bottom surface of the lower supporting plate is adjusted by rotating the first screw rod, so that the distance between the top surface of the upper supporting plate and the bottom surface of the lower supporting plate is equal to the thickness of the weld joint required to be reserved. The lower supporting plate is driven by the mounting block to move, so that the lower surface of the lower supporting plate is contacted with the upper surface of the cylinder body. After placing the end cover on the upper surface of the upper support plate, the air pressure in the second thread groove, the first thread groove and the air hole is reduced by rotating the second screw rod, so that the air pressure in the second thread groove, the first thread groove and the air hole is smaller than the external atmospheric pressure, the end cover is pressed on the upper surface of the upper support plate through the air pressure, on one hand, the axial position cannot be generated between the end cover and the barrel, and on the other hand, the end cover and the barrel can be ensured to rotate synchronously.
As a preferred technical scheme of the invention, a plurality of balls are uniformly and rotatably arranged on the bottom surface of the lower supporting plate and the top surface of the upper supporting plate, so that the friction between the bottom surface of the lower supporting plate and the top surface of the cylinder body and between the top surface of the upper supporting plate and the bottom surface of the end cover are reduced, the first supporting mechanism can smoothly move along the butt joint surface of the cylinder body and the end cover, and a position is provided for welding.
As a preferred technical scheme of the invention, the rubber sealing gasket is fixedly arranged on the top surface of the upper supporting plate at the air hole outlet, so that the adsorption effect of the upper supporting plate on the end surface is improved, and the end cover is prevented from sliding radially.
As a preferable technical scheme of the invention, the second supporting mechanism comprises an air cylinder, a bearing plate, a first motor, a bearing ring, a bearing column, a mounting ring, a tray, a rubber push rod, a first guide block and a second guide block. The cylinder is vertically installed on the top surface of the mounting column, and a bearing plate is horizontally installed on the top of the cylinder. The lower surface of the bearing plate is vertically provided with a first motor, and the upper surface of the bearing plate is horizontally and rotatably provided with a bearing ring fixedly connected with the output end of the first motor. The upper surface of the bearing plate is vertically and fixedly provided with a bearing column coaxial with the bearing ring, and the outer surface of the bearing column is vertically and slidably matched with a horizontal mounting ring. The top of the bearing column is provided with a tray through a ball hinge with damping, the lower surface of the tray is arc-shaped, and the upper edge of the tray is positioned in the same horizontal plane. A plurality of spherical rubber push rods are vertically and uniformly fixedly arranged on the upper surface of the mounting ring along the circumferential direction of the mounting ring. The lower surface of the mounting ring is uniformly and fixedly provided with a plurality of spherical first guide blocks along the circumferential direction, and the upper surface of the bearing ring is uniformly and fixedly provided with a plurality of spherical second guide blocks along the circumferential direction. The opening of the end cover is placed downwards on the tray, so that the upper edge of the tray is completely attached to the lower surface of the end cover. When the end cover deviates, the tray can be driven to rotate by a certain angle, so that the upper edge of the tray is in a non-horizontal plane state. The bearing ring and the second guide block are driven to rotate by the first motor, and the second guide block periodically contacts with the first guide block and pushes the first guide block upwards in the rotating process. The first guide block drives the mounting ring and the push rod to move upwards in the upward movement process, the top of the rubber push rod impacts the lower surface of the tray and deforms, and the rubber push rod pushes the tray to move for a certain distance in the deformation recovery process; as the rubber push rod periodically impacts and pushes the tray, the tray gradually returns to the initial state until the upper edge of the tray is in a horizontal state, namely the lower edge of the end cover is in a horizontal state. The end cover is driven to descend through the cylinder until the lower edge of the end cover butts against the first supporting mechanism, and the end cover is prevented from deviating.
As a preferable technical scheme of the invention, a bevel gear ring is arranged at the edge of the rotary table, a second motor is horizontally and fixedly installed on the upper surface of the bottom plate, and an incomplete bevel gear which is meshed with the bevel gear ring is fixedly installed at the end part of an output shaft of the second motor. The incomplete bevel gear is driven by the second motor to continuously rotate at a constant speed, so that the rotary plate, the base and the barrel are driven to periodically rotate by a fixed angle. An operator can weld the cylinder body and the end cover in a static state at a fixed point, so that the welding quality is improved.
As a preferred technical scheme of the invention, a first oil groove communicated with the annular groove is formed in the base, a plurality of pressure rods positioned in the annular groove are vertically matched in the first oil groove in a sliding manner, a pressure block is fixedly arranged at the top of each pressure rod, and a return spring is vertically arranged between each pressure block and the bottom surface of the annular groove. The mounting column is internally provided with second oil grooves which are the same with the pressing rods in number along the radial direction, and the second oil grooves are communicated with the first oil grooves. A horizontal supporting rod is matched in the second oil groove in a sliding mode, and a supporting block matched with the inner side wall of the cylinder body is fixedly installed at the outer end of the supporting rod. In the process that the cylinder body is inserted into the annular groove, the bottom surface of the cylinder body is abutted to the pressing block, and the pressing block and the pressing rod are pushed to move downwards to compress the return spring. During the depression bar moves down the hydraulic oil extrusion in-process with first oil groove and gets into the second oil groove, the hydraulic oil that gets into the second oil groove promotes the bracing piece and moves to the outside, and the bracing piece contradicts the supporting shoe on the barrel inside wall, drives the synchronous rotation of barrel when guaranteeing base and erection column pivoted.
According to the preferable technical scheme, the outer side surface of the supporting block is provided with the vertical strip-shaped anti-slip lines, so that the static friction force between the supporting block and the inner side wall of the cylinder body is improved, and the cylinder body is ensured to rotate synchronously along with the mounting column.
As a preferable technical scheme of the invention, a telescopic rod is hinged between the guide rod and the rigid straight rod through a pin shaft, so that the strength of the guide rod and the rigid straight rod is improved.
(III) advantageous effects
The invention has at least the following beneficial effects:
(1) when the end cover and the cylinder body of the large-scale pressure container are welded, the bottom surface of the end cover is supported and adjusted through the second supporting mechanism, so that the edge of the bottom end of the end cover is always in a horizontal state in the welding process, the bottom surface of the end cover is adsorbed through the first supporting mechanism, the end cover is ensured not to generate radial deviation in the welding process, and the position deviation of the end cover is avoided.
(2) When the welding device is used for welding the end cover and the cylinder body of the large-scale pressure container, the gap required by the welding seam is reserved between the top surface of the cylinder body and the bottom surface of the end cover through the support of the first support mechanism, the first support mechanism can be moved in the welding process, the end cover is ensured not to deviate along the axial direction of the cylinder body in the welding process, and therefore the accuracy of the welding position of the end cover is improved.
(3) When the welding device is used for welding the end cover and the barrel of the large-scale pressure vessel, the support rod can push the support block to horizontally support the inner side wall of the barrel in the process of lifting the barrel, so that the barrel and the end cover can be driven to synchronously rotate when the base rotates, and the welding at the fixed-point position of an operator is realized; the incomplete bevel gear which continuously rotates drives the barrel and the end cover to periodically rotate by a fixed angle, so that the welding gun can be conveniently operated to weld a welding seam, and the welding quality is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a step diagram of a large pressure vessel assembly welding manufacturing process according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a first embodiment of a large-scale pressure vessel assembly welding manufacturing machine according to the present invention;
FIG. 3 is a second perspective view of a large-scale pressure vessel assembling, welding and manufacturing machine according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of a large-scale pressure vessel assembling, welding and manufacturing machine A according to an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of a large-scale pressure vessel assembling, welding and manufacturing machine B according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of a large-scale pressure vessel assembling, welding and manufacturing machine C according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an internal structure of a first supporting mechanism of a large-scale pressure vessel assembling, welding and manufacturing machine according to an embodiment of the present invention;
FIG. 8 is a schematic view of the internal structure of a base of a large-scale pressure vessel assembling, welding and manufacturing machine according to an embodiment of the present invention.
In the figure: 1-bottom plate, 2-rotary table, 3-base, 4-annular groove, 5-mounting column, 6-sliding groove, 7-electric sliding sleeve, 8-first guide groove, 9-first sliding block, 10-fixing sleeve, 11-second guide groove, 12-second sliding block, 13-guide rod, 14-mounting block, 15-first supporting mechanism, 151-lower supporting plate, 152-first thread groove, 153-first screw rod, 154-upper supporting plate, 155-air hole, 156-second thread groove, 157-second screw rod, 158-ball, 159-sealing pad, 16-rigid straight rod, 17-second supporting mechanism, 171-cylinder, 172-supporting plate, 173-first motor, 174-supporting ring, 175-supporting column, 176-mounting ring, 177-tray, 178-push rod, 179-first guide block, 1710-second guide block, 18-second motor, 19-incomplete bevel gear, 20-first oil groove, 21-press rod, 22-press block, 23-return spring, 24-second oil groove, 25-support rod and 26-support block.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 8, the present embodiment provides a large pressure vessel assembling, welding and manufacturing machine, which includes a bottom plate 1 horizontally disposed, a turntable 2 horizontally rotatably mounted on an upper surface of the bottom plate 1, and a base 3 horizontally and fixedly mounted on an upper surface of the turntable 2. The upper surface of the base 3 is provided with an annular groove 4 which is matched with the pressure vessel cylinder. The upper surface of the base 3 is vertically and fixedly connected with a mounting column 5 at the center of the annular groove 4.
The vertical spout 6 of having seted up on the erection column 5, sliding mounting has in the spout 6 with 5 outer surface complex electric sliding sleeve 7 of erection column, and annular first guide way 8 has been seted up to electric sliding sleeve 7's surface level. More than three first sliding blocks 9 are slidably mounted in the first guide groove 8. A fixed sleeve 10 is fixedly arranged above the electric sliding sleeve 7 on the mounting column 5, an annular second guide groove 11 is horizontally formed in the outer surface of the fixed sleeve 10, and second sliding blocks 12 with the same number as the first sliding blocks 9 are arranged in the second guide groove 11 in a sliding manner. And a guide rod 13 is fixedly arranged on the outer side of the second sliding block 12 along the radial direction of the mounting column 5. A mounting block 14 is slidably fitted on the guide bar 13, and a first support mechanism 15 is arranged above the mounting block 14. A rigid straight rod 16 is arranged below the mounting block 14 through a pin shaft, and the bottom end of the rigid straight rod 16 is arranged on the first sliding block 9 through a pin shaft. The top of the mounting post 5 is provided with a second support mechanism 17. The first sliding block 9 is driven to move upwards through the electric sliding sleeve 7, the rigid straight rod 16 is driven to move, and therefore the mounting block 14 is pushed to slide outwards along the guide rod 13, and the position of the first supporting mechanism 15 is adjusted.
In this embodiment, the first support mechanism 15 includes a lower support plate 151, a first screw groove 152, a first screw 153, an upper support plate 154, an air hole 155, a second screw groove 156, and a second screw 157. The lower support plate 151 is horizontally and fixedly mounted on the mounting block 14, a first threaded groove 152 is vertically formed in the upper surface of the lower support plate 151, a first screw 153 is mounted in the first threaded groove 152, and an upper support plate 154 is horizontally and fixedly mounted at the top of the first screw 153. An air hole 155 communicated with the first thread groove 152 vertically penetrates through the upper support plate 154 and the first screw 153. The lower support plate 151 is provided with a second screw groove 156 communicated with the first screw groove 152, and a second screw 157 is installed in the second screw groove 156. The distance between the top surface of the upper support plate 154 and the bottom surface of the lower support plate 151 is adjusted by rotating the first screw 153 so that the distance between the top surface of the upper support plate 154 and the bottom surface of the lower support plate 151 is equal to the thickness of the weld to be reserved. The lower support plate 151 is moved by the mounting block 14 so that the lower surface of the lower support plate 151 contacts the upper surface of the cylinder. After the end cover is placed on the upper surface of the upper support plate 154, the air pressure in the second thread groove 156, the first thread groove 152 and the air hole 155 is reduced by rotating the second screw 157, so that the air pressure in the second thread groove 156, the first thread groove 152 and the air hole 155 is smaller than the external atmospheric pressure, the end cover is pressed on the upper surface of the upper support plate 154 through the air pressure, on one hand, the axial position between the end cover and the cylinder body cannot be ensured, and on the other hand, the synchronous rotation of the end cover and the cylinder body is ensured.
In this embodiment, a plurality of balls 158 are uniformly rotatably installed on the bottom surface of the lower supporting plate 151 and the top surface of the upper supporting plate 154 to reduce the friction between the bottom surface of the lower supporting plate 151 and the top surface of the cylinder and between the top surface of the upper supporting plate 154 and the bottom surface of the end cap, so as to ensure that the first supporting mechanism 15 can smoothly move along the butt joint surface of the cylinder and the end cap, thereby providing a position for welding.
In this embodiment, the top surface of the upper support plate 154 is fixedly mounted with a rubber gasket 159 at the outlet of the air hole 155, so as to improve the adsorption effect of the upper support plate 154 on the end surface and avoid the radial sliding of the end cover.
In this embodiment, the second supporting mechanism 17 includes an air cylinder 171, a supporting plate 172, a first motor 173, a supporting ring 174, a supporting column 175, a mounting ring 176, a tray 177, a rubber pusher 178, a first guide block 179 and a second guide block 1710. The cylinder 171 is vertically installed on the top surface of the mounting post 5, and the bearing plate 172 is horizontally installed on the top of the cylinder 171. The lower surface of the supporting plate 172 is vertically provided with a first motor 173, and the upper surface of the supporting plate 172 is horizontally and rotatably provided with a supporting ring 174 fixedly connected with the output end of the first motor 173. A bearing column 175 coaxial with the bearing ring 174 is vertically and fixedly arranged on the upper surface of the bearing plate 172, and a horizontal mounting ring 176 is vertically and slidably matched on the outer surface of the bearing column 175. The top of the supporting column 175 is provided with a tray 177 through a ball hinge with damping, the lower surface of the tray 177 is arc-shaped, and the upper edge of the tray 177 is positioned in the same horizontal plane. A plurality of rubber push rods 178 with spherical tops are vertically and uniformly and fixedly arranged on the upper surface of the mounting ring 176 along the circumferential direction. A plurality of spherical first guide blocks 179 are uniformly and fixedly arranged on the lower surface of the mounting ring 176 along the circumferential direction, and a plurality of spherical second guide blocks 1710 are uniformly and fixedly arranged on the upper surface of the bearing ring 174 along the circumferential direction. The end cap opening is placed down onto the tray 177 so that the upper edge of the tray 177 and the lower surface of the end cap are fully flush. When the end cover is deviated, the tray 177 is rotated by a certain angle, so that the upper edge of the tray 177 is in a non-horizontal plane. The first motor 173 rotates the retainer ring 174 and the second guide block 1710, and the second guide block 1710 periodically contacts the first guide block 179 and pushes the first guide block 179 upward during the rotation of the second guide block 1710. The first guide block 179 drives the mounting ring 176 and the push rod 178 to move upwards in the upward movement process, the top of the rubber push rod 178 impacts the lower surface of the tray 177 and deforms, and the rubber push rod 178 pushes the tray 177 to move for a certain distance in the deformation recovery process; as the rubber pusher 178 periodically strikes and pushes the tray 177, the tray 177 gradually returns to the initial state until the upper edge of the tray 177 is in a horizontal state, i.e., the lower edge of the end cover is in a horizontal state. The cylinder 171 drives the end cover to descend until the lower edge of the end cover abuts against the first supporting mechanism 15, so that the end cover is prevented from deviating.
In this embodiment, a bevel gear ring is arranged at the edge of the turntable 2, a second motor 18 is horizontally and fixedly mounted on the upper surface of the base plate 1, and an incomplete bevel gear 19 meshed with the bevel gear ring is fixedly mounted at the end of an output shaft of the second motor 18. The incomplete bevel gear 19 is driven by the second motor 18 to rotate continuously at a constant speed, so that the turntable 2, the base 3 and the cylinder are driven to rotate periodically by a fixed angle. An operator can weld the cylinder body and the end cover in a static state at a fixed point, so that the welding quality is improved.
In this embodiment, a first oil groove 20 communicated with the annular groove 4 is formed in the base 3, a plurality of pressure rods 21 located in the annular groove 4 are vertically and slidably matched in the first oil groove 20, a pressure block 22 is fixedly installed at the top of each pressure rod 21, and a return spring 23 is vertically installed between each pressure block 22 and the bottom surface of the annular groove 4. The mounting column 5 is internally provided with second oil grooves 24 with the same number as the compression bars 21 along the radial direction, and the second oil grooves 24 are communicated with the first oil grooves 20. A horizontal supporting rod 25 is in sliding fit in the second oil groove 24, and a supporting block 26 matched with the inner side wall of the cylinder body is fixedly installed at the outer end part of the supporting rod 25. When the cylinder is inserted into the annular groove 4, the bottom surface of the cylinder is abutted against the pressing block 22, and the pressing block 22 and the pressing rod 21 are pushed to move downwards to compress the return spring 23. During the depression bar 21 moves down the in-process and gets into second oil groove 24 with the hydraulic oil extrusion in the first oil groove 20, the hydraulic oil that gets into second oil groove 24 promotes bracing piece 25 and moves to the outside, and bracing piece 25 contradicts supporting shoe 26 on the barrel inside wall, drives the synchronous rotation of barrel when guaranteeing base 3 and erection column 5 pivoted.
In this embodiment, the lateral surface of the supporting block 26 is provided with a vertical strip-shaped anti-slip pattern to improve the static friction between the supporting block 26 and the inner lateral wall of the cylinder, and ensure that the cylinder rotates synchronously with the mounting column 5.
In this embodiment, the guide rod 13 and the rigid straight rod 16 are hinged to each other through a hinge pin to form a telescopic rod, so as to improve the strength of the guide rod 13 and the rigid straight rod 16.
As shown in fig. 1, the present embodiment further provides a large pressure vessel assembly welding manufacturing process, which is completed by using the large pressure vessel assembly welding manufacturing machine, where the large pressure vessel assembly welding manufacturing process includes the following steps:
step one, mounting a cylinder body: the cartridge is vertically suspended from the base 3 so that the bottom end of the cartridge is inserted into the annular groove 4.
Step two, reserving welding seams: the rigid straight rod 16 is driven to move by moving the electric sliding sleeve 7 upwards, so that the mounting block 14 is driven to slide outwards along the guide rod 13 until the first supporting mechanism 15 reaches the position above the top surface of the cylinder body, the height of the first supporting mechanism 15 is adjusted, and the height of the first supporting mechanism 15 is the same as the thickness of a welding seam.
Step three, placing an end cover: the end cover is lifted to the second supporting mechanism 17, the angle of the end cover is adjusted through the second supporting mechanism 17, the plane where the lower edge of the end cover is located is horizontal, then the end cover is placed on the first supporting mechanism 15, and the end cover is supported through the first supporting mechanism 15 and the second supporting mechanism 17 together.
Welding an end cover and a cylinder body: the base 3 drives the barrel to rotate, the welding gun welds along the edge of the end cover and the barrel, and the first supporting mechanism 15 is pushed to move along the circumferential direction of the barrel in the welding process until the adjacent first supporting mechanisms 15 are abutted together. The rigid straight rod 16 is driven to move by moving the electric sliding sleeve 7 downwards, so that the mounting block 14 and the first supporting mechanism 15 are driven to slide inwards along the guide rod 13, the first supporting mechanism 15 moves out of a welding seam between the end cover and the cylinder body, and then a gap formed after the first supporting mechanism 15 is moved out is welded through a welding gun.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a large-scale pressure vessel assembly welding manufacturing process, welds to the barrel and the end cover of large-scale pressure vessel, adopts the mechanical cooperation completion of a large-scale pressure vessel assembly welding manufacturing, its characterized in that: the large-scale pressure vessel assembling, welding and manufacturing machine comprises a bottom plate (1) which is horizontally arranged, a turntable (2) is horizontally and rotatably arranged on the upper surface of the bottom plate (1), and a base (3) is horizontally and fixedly arranged on the upper surface of the turntable (2); the upper surface of the base (3) is provided with an annular groove (4) which is matched with the pressure container cylinder body; the upper surface of the base (3) is vertically and fixedly connected with a mounting column (5) at the center of the annular groove (4);
a sliding groove (6) is vertically formed in the mounting column (5), an electric sliding sleeve (7) matched with the outer surface of the mounting column (5) is installed in the sliding groove (6) in a sliding mode, and an annular first guide groove (8) is horizontally formed in the outer surface of the electric sliding sleeve (7); more than three first sliding blocks (9) are arranged in the first guide groove (8) in a sliding way; a fixed sleeve (10) is fixedly arranged on the mounting column (5) above the electric sliding sleeve (7), an annular second guide groove (11) is horizontally formed in the outer surface of the fixed sleeve (10), and second sliding blocks (12) with the same number as the first sliding blocks (9) are arranged in the second guide groove (11) in a sliding manner; a guide rod (13) is fixedly arranged on the outer side of the second sliding block (12) along the radial direction of the mounting column (5); a mounting block (14) is slidably matched on the guide rod (13), and a first supporting mechanism (15) is arranged above the mounting block (14); a rigid straight rod (16) is arranged below the mounting block (14) through a pin shaft, and the bottom end of the rigid straight rod (16) is arranged on the first sliding block (9) through the pin shaft; the top of the mounting column (5) is provided with a second supporting mechanism (17);
the assembly welding manufacturing process of the large pressure container comprises the following steps:
step one, mounting a cylinder body: vertically hoisting the cylinder body on the base (3) to enable the bottom end of the cylinder body to be inserted into the annular groove (4);
step two, reserving welding seams: the rigid straight rod (16) is driven to move by moving the electric sliding sleeve (7) upwards, so that the mounting block (14) is driven to slide outwards along the guide rod (13) until the first supporting mechanism (15) reaches the position above the top surface of the cylinder body, and the height of the first supporting mechanism (15) is adjusted, so that the height of the first supporting mechanism (15) is the same as the thickness of a welding seam;
step three, placing an end cover: the end cover is lifted to a second supporting mechanism (17), the angle of the end cover is adjusted through the second supporting mechanism (17), so that the plane of the lower edge of the end cover is horizontal, then the end cover is placed on a first supporting mechanism (15), and the end cover is supported through the first supporting mechanism (15) and the second supporting mechanism (17);
welding an end cover and a cylinder body: the barrel is driven to rotate by the base (3), the welding gun welds the barrel along the end cover and the edge of the barrel, and the first supporting mechanisms (15) are pushed to move along the circumferential direction of the barrel in the welding process until the adjacent first supporting mechanisms (15) are abutted together; the rigid straight rod (16) is driven to move by moving the electric sliding sleeve (7) downwards, so that the mounting block (14) and the first supporting mechanism (15) are driven to slide inwards along the guide rod (13), the first supporting mechanism (15) moves out of a welding seam between the end cover and the cylinder, and then a gap formed after the first supporting mechanism (15) is moved out is welded through the welding gun.
2. The assembly welding manufacturing process of the large-scale pressure vessel as claimed in claim 1, wherein: the first supporting mechanism (15) comprises a lower supporting plate (151), a first thread groove (152), a first screw rod (153), an upper supporting plate (154), an air hole (155), a second thread groove (156) and a second screw rod (157); the lower supporting plate (151) is horizontally and fixedly installed on the installation block (14), a first threaded groove (152) is vertically formed in the upper surface of the lower supporting plate (151), a first screw (153) is installed in the first threaded groove (152), and the top of the first screw (153) is horizontally and fixedly installed on the upper supporting plate (154); an air hole (155) communicated with the first thread groove (152) vertically penetrates through the upper supporting plate (154) and the first screw (153); a second thread groove (156) communicated with the first thread groove (152) is arranged in the lower supporting plate (151), and a second screw (157) is arranged in the second thread groove (156).
3. The assembly welding manufacturing process of the large-scale pressure vessel as claimed in claim 2, wherein: and a plurality of balls (158) are uniformly and rotatably arranged on the bottom surface of the lower supporting plate (151) and the top surface of the upper supporting plate (154).
4. The assembly welding manufacturing process of the large-scale pressure vessel as claimed in claim 2, wherein: and a rubber sealing gasket (159) is fixedly arranged on the top surface of the upper supporting plate (154) at the outlet of the air hole (155).
5. The assembly welding manufacturing process of the large-scale pressure vessel as claimed in claim 1, wherein: the second supporting mechanism (17) comprises an air cylinder (171), a bearing plate (172), a first motor (173), a bearing ring (174), a bearing column (175), a mounting ring (176), a tray (177), a rubber push rod (178), a first guide block (179) and a second guide block (1710); the cylinder (171) is vertically arranged on the top surface of the mounting column (5), and the top of the cylinder (171) is horizontally provided with a bearing plate (172); a first motor (173) is vertically arranged on the lower surface of the bearing plate (172), and a bearing ring (174) fixedly connected with the output end of the first motor (173) is horizontally and rotatably arranged on the upper surface of the bearing plate (172); a bearing column (175) coaxial with the bearing ring (174) is vertically and fixedly arranged on the upper surface of the bearing plate (172), and a horizontal mounting ring (176) is vertically and slidably matched with the outer surface of the bearing column (175); the top of the supporting column (175) is provided with a tray (177) through a ball hinge with damping, the lower surface of the tray (177) is arc-shaped, and the upper edge of the tray (177) is positioned in the same horizontal plane; a plurality of rubber push rods (178) with spherical tops are vertically and uniformly and fixedly arranged on the upper surface of the mounting ring (176) along the circumferential direction of the mounting ring; a plurality of spherical first guide blocks (179) are uniformly and fixedly arranged on the lower surface of the mounting ring (176) along the circumferential direction of the mounting ring, and a plurality of spherical second guide blocks (1710) are uniformly and fixedly arranged on the upper surface of the bearing ring (174) along the circumferential direction of the bearing ring.
6. The assembly welding manufacturing process of the large-scale pressure vessel as claimed in claim 1, wherein: the edge of the turntable (2) is provided with a bevel gear ring, the upper surface of the base plate (1) is horizontally and fixedly provided with a second motor (18), and the end part of an output shaft of the second motor (18) is fixedly provided with an incomplete bevel gear (19) which is meshed with the bevel gear ring.
7. The assembly welding manufacturing process of the large-scale pressure vessel as claimed in claim 1, wherein: a first oil groove (20) communicated with the annular groove (4) is formed in the base (3), a plurality of pressure rods (21) positioned in the annular groove (4) are vertically and slidably matched in the first oil groove (20), a pressing block (22) is fixedly installed at the top of each pressure rod (21), and a return spring (23) is vertically installed between each pressing block (22) and the bottom surface of the annular groove (4); second oil grooves (24) with the same number as the compression bars (21) are formed in the mounting column (5) along the radial direction of the mounting column, and the second oil grooves (24) are communicated with the first oil grooves (20); a horizontal supporting rod (25) is in sliding fit in the second oil groove (24), and a supporting block (26) matched with the inner side wall of the cylinder body is fixedly installed at the outer end part of the supporting rod (25).
8. The assembly welding manufacturing process of the large-scale pressure vessel as claimed in claim 7, wherein: the outer side surface of the supporting block (26) is provided with vertical strip-shaped anti-skid grains.
9. The assembly welding manufacturing process of the large-scale pressure vessel as claimed in claim 1, wherein: and a telescopic rod is hinged between the guide rod (13) and the rigid straight rod (16) through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010211958.0A CN111195791A (en) | 2020-03-24 | 2020-03-24 | Assembling and welding manufacturing process of large pressure container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010211958.0A CN111195791A (en) | 2020-03-24 | 2020-03-24 | Assembling and welding manufacturing process of large pressure container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111195791A true CN111195791A (en) | 2020-05-26 |
Family
ID=70745303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010211958.0A Withdrawn CN111195791A (en) | 2020-03-24 | 2020-03-24 | Assembling and welding manufacturing process of large pressure container |
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| Country | Link |
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| CN (1) | CN111195791A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799715A (en) * | 2022-04-18 | 2022-07-29 | 张景心 | Intelligent stainless steel bucket welding machine |
| CN117340435A (en) * | 2023-12-06 | 2024-01-05 | 中机生产力促进中心有限公司 | Circumferential laser welding equipment for annular pipe fitting |
-
2020
- 2020-03-24 CN CN202010211958.0A patent/CN111195791A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114799715A (en) * | 2022-04-18 | 2022-07-29 | 张景心 | Intelligent stainless steel bucket welding machine |
| CN117340435A (en) * | 2023-12-06 | 2024-01-05 | 中机生产力促进中心有限公司 | Circumferential laser welding equipment for annular pipe fitting |
| CN117340435B (en) * | 2023-12-06 | 2024-02-09 | 中机生产力促进中心有限公司 | Circumferential laser welding equipment for annular pipe fitting |
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Application publication date: 20200526 |