CN114433984A - Assembly method based on hemispherical welding tool device - Google Patents
Assembly method based on hemispherical welding tool device Download PDFInfo
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- CN114433984A CN114433984A CN202011206308.3A CN202011206308A CN114433984A CN 114433984 A CN114433984 A CN 114433984A CN 202011206308 A CN202011206308 A CN 202011206308A CN 114433984 A CN114433984 A CN 114433984A
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- 238000003466 welding Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000003825 pressing Methods 0.000 claims abstract description 60
- 239000000463 material Substances 0.000 claims abstract description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 229910052786 argon Inorganic materials 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
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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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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Abstract
The invention relates to an assembly method based on a hemispherical welding tool device, which is mainly applied to the flange welding of the upper end surface and the end surface of a hemispherical shell, designs a welding tool with adjustable pretightening pressure, and can solve the problem that the flange is easy to deform when the flange is welded on the end surface of the hemispherical shell, the hemispherical welding tool device mainly comprises a positioning base, the hemispherical shell and a hemispherical press-mounting mechanism, wherein the positioning base adopts 4 inner supports to simultaneously support the inner wall, the upper part of a supporting block is processed into a cambered surface which can be fully contacted with the inner wall of the hemispherical shell, the material density of the hemispherical body is lower, the whole mass is lighter, the position is easy to adjust, in addition, 8 press plates which are uniformly distributed in the circumferential direction are arranged above the end surface flange welding to press the welding flange, and the pressing position and the stress of the press plates can be adjusted at the same time, so that the stress is prevented from being larger, the semi-spherical shell is also promoted to generate larger internal stress when being welded, and the deformation can be effectively reduced when the flange is welded on the end face of the semi-spherical shell by adopting the technical scheme.
Description
Technical Field
The invention relates to the technical field of welding, in particular to an assembling method based on a hemisphere welding tool device.
Background
When the flange is welded on the end face of the hemispherical shell, the welding difficulty is high and the quality stability is poor due to the adverse effects of the welding performance and the structure of materials, so that the production and the application of the welding structure are restricted, the improvement of a welding tool is the key of the improvement of a welding process, the welding of the hemispherical shell and the flange is limited by a part processing mode and a welding structure, manual argon arc welding is generally adopted, the welding quality stability is poor, the yield is low, and the deformation is easy to occur.
This frock work piece uses when spheroid seal welding, and the work piece is applied to in the experiment cabin, and this design frock is used for the up end and the terminal surface flange welding of hemisphere casing, because hemisphere casing diameter is great, and hemisphere casing wall thickness is 2mm, takes place the deformation easily when welding on it, in order to solve this problem, consequently designs the welding frock of an adjustable pretension pressure.
Disclosure of Invention
The invention provides a hemispherical body welding tool device and an assembling method thereof, which aim to solve the problem that a flange is easy to deform when the end face of a hemispherical shell is welded.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the invention adopts a hemisphere welding tool device which mainly comprises a positioning base, a hemisphere shell and a hemisphere press-fitting mechanism, wherein an end face flange is welded on the upper end face of the hemisphere shell by the device, and full welding is carried out in the circumferential direction of an annular welding line.
Furthermore, the positioning seat 1 consists of a square bottom plate, a supporting rod and a screw rod; the three welding modes are formed, a screw rod is welded in the middle of a square bottom plate, the screw rod is made of seamless steel tubes and is externally twisted, a round boss is arranged on the upper surface of the square bottom plate, the center of the square bottom plate is hollowed out, 4 rib plates are welded in 90-degree positions respectively, two support rods are perpendicularly welded on each rib plate, and a certain size gap is reserved between every two support rods.
Further, the hemispherical shell is a half of a sealed sphere with the wall thickness of 1mm, and the workpiece is used in an experiment chamber.
Furthermore, the hemispheroid press-fitting mechanism is divided into an external press-fitting mechanism and an internal supporting mechanism.
Furthermore, the external press-fitting mechanism is characterized in that the upper end part of the first middle screw rod is mounted on a connecting rod mounting seat, the lower end part of the first middle screw rod is mounted below the connecting rod mounting seat, 8 lifting lugs are uniformly arranged on the connecting rod mounting seat in the circumferential direction and are respectively connected with the upper end parts of the pressing rods through pin shafts, the lower end positions of the first screw rods are mounted below the connecting rod mounting seat, the 8 lifting lugs are uniformly distributed upwards and are respectively inserted into grooves in the middle parts of the pressing rods, the two pressing rods are connected through the pin shafts, a pressing plate is welded on the lower end face of each pressing rod, and the pressing plate is arc-shaped. The upper end part of the pressure lever is connected with the connecting rod mounting seat, the middle part of the pressure lever is connected with the driving connecting rod through a groove, the lower end part of the pressure lever forms a 30-degree included angle and is welded with the pressure plate, and the welding position of the pressure lever and the pressure plate adopts a full-length welding mode. And after the whole welding, the lower surface of the pressing plate is subjected to plane milling processing, so that the flatness of the pressing plate is ensured.
Furthermore, after the end face flange is placed on the upper end face of the half-shell sphere, the upper position and the lower position of the first relative screw rod on the connecting rod mounting seat are manually adjusted, so that an included angle formed by 8 connecting rods connected with the connecting rod mounting seat and the end face flange placed in the horizontal position is reduced, and the pre-tightening force of the pressing plate on the end face flange is increased. When the connecting rod mounting seat is adjusted to be arranged below, the connecting rod mounting seat moves upwards when rotating anticlockwise, the end parts of the inner sides of 8 driving connecting rods in the circumferential direction move upwards, the end part of the other side connected with the pressing rod moves downwards, and the position of the pressing rod pressing the flange edge of the end face slightly deviates inwards; when the connecting rod mounting seat is adjusted to be arranged below, the connecting rod mounting seat moves downwards when rotating clockwise, the end parts of the inner sides of 8 driving connecting rods in the circumferential direction move downwards, the end parts of the other sides connected with the pressing rods move upwards, and the positions of the pressing rods pressing the flange edges of the end faces slightly deviate outwards; the position of the pressing plate for pressing the end face flange can be adjusted through the two adjusting modes.
Further, inside supporting mechanism, the inside processing of sliding sleeve is the internal thread, locking piece quantity is 4, 4 latch segments of equipartition installation on the outside circumferencial direction of sliding sleeve, the mounting means of latch segment and sliding sleeve is the interference fit installation, the one end of connecting rod is the cell type, the tip trompil, the other end trompil, the one end cell type and the latch segment of connecting rod are fixed through round pin hub connection, the other end of connecting rod inserts inside the rectangular channel of connecting seat, it is fixed through round pin hub connection, interior kicking block is the arc piece, the upper end can laminate with spheroidal inner wall for having an inclination, the intermediate position of connecting rod is installed between 2 bracing pieces, use round pin axle fixed connection. When the adjusting sliding sleeve rotates anticlockwise, the sliding sleeve drives the locking blocks to move upwards simultaneously, the inner side end of the connecting rod moves upwards, the outer side end of the connecting rod moves downwards, the four inner supporting blocks move downwards through connection of the connecting seat, and at the moment, the inner supporting blocks are separated from the inner wall of the half-shell sphere gradually; when the adjustment sliding sleeve clockwise rotation, the sliding sleeve drives the latch segment and moves down simultaneously, and the medial extremity of connecting rod is downward, and the outside end rebound of connecting rod through the connection of connecting seat makes four interior bracers rebound simultaneously, and interior bracer laminates half spheroidal inner wall gradually this moment, plays the supporting role. When the half-shell sphere and the end face flange are welded, the inner wall of the half-shell sphere is supported, and welding deformation is reduced.
The second technical solution adopted by the present invention to solve the above technical problems is as follows:
the invention relates to an assembling method based on a hemispherical welding tool device, which comprises the following steps:
the method comprises the following steps that firstly, a half-shell sphere is placed on a square bottom plate of a positioning base 1, the lower end face of the half-shell sphere is in contact with the upper plane of the square bottom plate, the outer diameter of a cylindrical boss on the square bottom plate is equal to the inner diameter of the half-shell sphere, and the half-shell sphere is positioned; an end face flange is arranged on the upper end opening face of the half-shell sphere.
Second step, prop the mechanism in the adjustment, the manual work uses the specialized tool to adjust to the sliding sleeve, during clockwise rotation, the sliding sleeve drives the latch segment and moves down simultaneously, the medial extremity of connecting rod is downward, the outside end rebound of connecting rod, through the connection of connecting seat, make four interior bracers rebound simultaneously, interior bracer laminates half spheroidal inner wall gradually this moment, make the inclined plane of interior bracer gradually with half spheroidal inner wall laminating fully, play the effect of inside support hemisphere casing, the supporting shoe material uses 6063, weight is lighter when making the regulation, adjust the height easily.
Thirdly, when end face flanges with different thicknesses are welded, firstly adjusting the extension height of the first screw relative to the inside of the first screw, and when the thickness is increased, rotating the upper hexagonal head of the first screw to rotate anticlockwise by using a wrench to adjust the extension height of the first screw to increase; when the thickness of the end face flange is reduced, the upper hexagonal head of the screw is rotated clockwise by using a wrench, and the extension height of the screw is adjusted to be increased. And after the extending position of the first screw rod is fixed, the pretightening force and the welding position of the end face flange are adjusted.
Fourthly, because the external threads of the first screw rod are matched with the internal threads in the screw rod, when the connecting rod mounting seat is adjusted to be arranged below, the connecting rod mounting seat moves upwards when the connecting rod mounting seat rotates anticlockwise, the end parts of the inner sides of 8 driving connecting rods in the circumferential direction move upwards, the end parts of the other sides of the 8 driving connecting rods connected with the pressing rod move downwards, and the position of the flange edges of the pressing end faces of the pressing rod slightly deviates inwards; when the connecting rod mounting seat is adjusted to be arranged below, the connecting rod mounting seat moves downwards when rotating clockwise, the end parts of the inner sides of 8 driving connecting rods in the circumferential direction move downwards, the end parts of the other sides connected with the pressing rods move upwards, and the positions of the pressing rods pressing the flange edges of the end faces slightly deviate outwards; the position of the pressing plate for pressing the end face flange can be adjusted through the two adjusting modes. The contact position of the end face flange and the upper end face of the hemispherical shell is adjusted according to the two adjusting modes.
Fifthly, after the inner supporting block of the inner supporting mechanism is adjusted to be in contact with the inner wall of the hemispherical shell, after the end flange is pressed and fixed by the pressing plate of the outer mechanism, a welding tool is used for full welding on a circumferential circle at the joint where the end flange is in contact with the hemispherical shell, and the hemispherical shell and the end flange are made of stainless steel 304 and are welded by argon arc welding with a welding rod which is a stainless steel welding rod.
Sixthly, after the joint of the lower end face of the end face flange and the hemispherical shell is fully welded for one circle, firstly, when the sliding sleeve is adjusted to rotate anticlockwise, the sliding sleeve drives the locking blocks to move upwards simultaneously, the inner side end of the connecting rod moves upwards, the outer side end of the connecting rod moves downwards, the four inner supporting blocks are enabled to move downwards simultaneously through connection of the connecting seat, and at the moment, the inner supporting blocks are separated from the inner wall of the hemispherical shell; and then, a wrench tool is used for rotating the first screw rod to increase the extension height of the first screw rod, so that the compression rod is driven to be lifted, and therefore 8 compression plates which are arranged and compressed on the upper surface of the end face flange are simultaneously separated from the end face flange. And manually taking out a finished product welded by the hemispherical shell and the end face flange.
The invention designs a welding tool capable of adjusting pretightening pressure, which is mainly applied to the welding of the upper end surface and the end surface flange of the hemispherical shell and can effectively reduce the deformation amount easily generated when the flange is welded on the end surface of the hemispherical shell.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a structural assembly view of a hemisphere welding tooling device of the present invention;
FIG. 2 is a schematic view of a positioning base 1 in a hemisphere welding fixture apparatus of the present invention;
FIG. 3 is a schematic view of a hemisphere pressing mechanism 3 in a hemisphere welding fixture apparatus according to the present invention;
FIG. 4 is a schematic view of an external press-fitting mechanism 6 in the hemispherical body welding tooling device according to the present invention;
FIG. 5 is a schematic view of an internal supporting mechanism 7 of a hemispherical body welding tooling device according to the present invention;
FIG. 6 is a schematic view of a hemispherical shell and an end flange of a hemispherical welding tooling device according to the present invention.
In the drawings:
1. positioning base
2. Semi-spherical shell
3. Hemisphere press-fitting mechanism
4. Square bottom plate
5. Support rod
6. External press-fitting mechanism
7. Internal support mechanism
8. End face flange
9. 8 press rods are arranged in the circumferential direction
10. Pin shaft
11. Driving connecting rod
12. Under the connecting rod mounting seat
13. Screw rod 1
14. On the connecting rod mounting seat
15. A pressing plate with 8 blocks arranged in the circumferential direction
16. 4 connecting rods are evenly distributed in the circumferential direction
17. Locking block
18. Sliding sleeve
19. 4 inner supporting blocks are uniformly distributed in the circumferential direction
20. Connecting seat
21. Circumferential weld
22. Screw rod
Detailed Description
The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.
Referring to fig. 1, the invention discloses a hemisphere welding tool device, which mainly comprises a positioning base 1, a hemisphere shell 2 and a hemisphere press-mounting mechanism 3, wherein an end face flange is welded on the upper end face of the hemisphere shell by the hemisphere welding tool device, and full welding is carried out in the circumferential direction of an annular welding line.
Referring to fig. 2, the positioning seat 1 is composed of a square bottom plate 4, a supporting rod 5 and a screw 22; the three welding modes are formed, the screw rod 22 is welded in the middle of the square bottom plate 4 and is made of seamless steel tubes and external stranded wires, a circular boss is arranged on the upper surface of the square bottom plate 4, the center of the circular boss is hollowed out, 4 rib plates are welded in 90-degree positions respectively, two support rods 5 are welded on each rib plate perpendicularly, and a certain size gap is reserved between every two support rods 5.
In this embodiment, the hemispherical shell 2 is a half of a sealed sphere with a wall thickness of 1mm, and the workpiece is used in an experiment chamber.
Referring to fig. 3, the hemisphere pressing mechanism 3 is divided into an outer pressing mechanism 6 and an inner supporting mechanism 7.
Referring to fig. 4, in the external press-fitting mechanism 6, an upper end of a middle screw rod 13 is mounted on an upper connecting rod mounting seat 14, a lower connecting rod mounting seat 12 is mounted on a lower portion of the middle screw rod 13, 8 lifting lugs are uniformly arranged on the upper connecting rod mounting seat 14 in the circumferential direction and are respectively connected with upper ends of pressure rods 9 through pin shafts, the lower connecting rod mounting seat 12 is mounted at a lower end of the screw rod 13, the 8 lifting lugs are uniformly arranged upward and are respectively inserted into a groove in the middle of the pressure rod 9, the two are connected through the pin shafts, a pressure plate 15 is welded on a lower end face of each pressure rod 9, and the pressure plate is arc-shaped. The upper end part of the pressure lever 9 is connected with the upper 14 of the connecting rod mounting seat, the middle part of the pressure lever is connected with the driving connecting rod 11 through a groove, the lower end part of the pressure lever 9 forms a 30-degree included angle and is welded with the pressure plate 15, and the welding position of the pressure lever 9 and the pressure plate 15 adopts a full-length welding mode. And after the integral welding, the lower surface of the pressing plate 15 is subjected to plane milling processing, so that the flatness of the pressing plate is ensured.
In this embodiment, after the end flange is placed on the upper end surface of the half-shell sphere, the upper and lower positions of the first 14 connecting rod mounting seats relative to the first screw rod are manually adjusted, so that the included angle formed by the 8 connecting rods 9 connected with the first connecting rod mounting seats and the end flange placed in the horizontal position is reduced, and the pretightening force of the pressing plate 15 on the end flange is increased. When the connecting rod mounting seat lower 12 is adjusted and rotates anticlockwise, the connecting rod mounting seat lower 12 moves upwards, the end parts of the inner sides of 8 driving connecting rods 11 in the circumferential direction move upwards, the end part of the other side connected with the pressing rod 9 moves downwards, and the position of the pressing rod 9 pressing the flange edge of the end face slightly deviates inwards; when the connecting rod mounting seat lower 12 is adjusted and rotates clockwise, the connecting rod mounting seat lower 12 moves downwards, the end parts of the inner sides of 8 driving connecting rods 11 in the circumferential direction move downwards, the end parts of the other sides connected with the pressing rods 9 move upwards, and the positions of the pressing rods 9 pressing the flange edges of the end faces slightly offset outwards; the position of the pressing plate for pressing the end face flange can be adjusted through the two adjusting modes.
Please refer to fig. 5, the inner supporting mechanism 7 is configured such that the inner portion of the sliding sleeve 18 is processed into an internal thread, the number of the locking blocks 17 is 4, 4 locking blocks 17 are uniformly installed in the outer circumferential direction of the sliding sleeve, the locking blocks 17 and the sliding sleeve 18 are installed in an interference fit manner, one end of the connecting rod 16 is a groove shape, the end portion of the connecting rod is provided with a hole, the other end of the connecting rod 16 is provided with a hole, the groove shape of one end of the connecting rod 16 is fixed to the locking blocks 17 through a pin, the other end of the connecting rod 16 is inserted into the rectangular groove of the connecting seat 20 and fixed through a pin, the inner supporting block 19 is an arc-shaped block, the upper end of the inner supporting block can be attached to the inner wall of the sphere for having an inclination, the middle position of the connecting rod 16 is installed between 2 supporting rods 5, and the connecting rod is fixedly connected through a pin. When the adjusting sliding sleeve 18 rotates anticlockwise, the sliding sleeve 18 drives the locking block 17 to move upwards at the same time, the end part of the inner side of the connecting rod 16 moves upwards, the end part of the outer side of the connecting rod 16 moves downwards, and the four inner supporting blocks move downwards through the connection of the connecting seat 20, so that the inner supporting blocks 19 are gradually separated from the inner wall of the half-shell sphere at the moment; when the adjusting sliding sleeve 18 rotates clockwise, the sliding sleeve 18 drives the locking block 17 to move downwards at the same time, the inner side end of the connecting rod 16 moves downwards, the outer side end of the connecting rod 16 moves upwards, the four inner supporting blocks move upwards through connection of the connecting seat 20, and the inner supporting blocks 19 are gradually attached to the inner wall of the half-shell sphere to play a supporting role. When the half-shell sphere and the end face flange are welded, the inner wall of the half-shell sphere is supported, and welding deformation is reduced.
The invention discloses an assembling method based on a hemispherical welding tool device, which comprises the following steps:
firstly, placing a half-shell sphere 2 on a square bottom plate 4 of a positioning base 1, wherein the lower end face of the half-shell sphere is in contact with the upper plane of the square bottom plate 4, and the outer diameter of a cylindrical boss on the square bottom plate 4 is equal to the inner diameter of the half-shell sphere 2, so that the half-shell sphere 2 is positioned; an end flange 8 is placed on the upper opening surface of the half-shell sphere.
Second step, prop the mechanism in the adjustment, the manual work uses the specialized tool to adjust to sliding sleeve 18, during clockwise rotation, sliding sleeve 18 drives latch segment 17 and moves down simultaneously, the medial extremity of connecting rod 16 is downward, the lateral extremity rebound of connecting rod 16, through the connection of connecting seat 20, make four interior kickers rebound simultaneously, interior kicker 19 laminates half spheroidal inner wall gradually this moment, it is abundant with half spheroidal inner wall laminating gradually to make the inclined plane of 4 interior kickers, play the effect of inside support hemisphere casing, the supporting shoe material uses 6063, the weight is lighter when making the regulation, adjust the height easily.
Thirdly, when end face flanges with different thicknesses are welded, firstly adjusting the extending height of the first screw 13 relative to the inner part of the screw 22, and when the thickness is increased, rotating the upper hexagonal head of the screw 13 by using a wrench to rotate anticlockwise so as to adjust the extending height to be increased; when the end face flange thickness is reduced, the extension height thereof is adjusted to be increased by rotating the upper hexagonal head of the screw 13 clockwise using a wrench. And after the extending position of the first screw rod 13 is fixed, the pretightening force and the welding position of the end face flange are adjusted.
Fourthly, because the external threads of the first screw rod 13 are matched with the internal threads in the screw rod 22, when the connecting rod mounting seat lower 12 is adjusted and rotates anticlockwise, the connecting rod mounting seat lower 12 moves upwards, the end parts of the inner sides of 8 driving connecting rods 11 in the circumferential direction move upwards, the end parts of the other sides connected with the pressing rods 9 move downwards, and the positions of the pressing end face flange edges of the pressing rods 9 slightly deviate inwards; when the connecting rod mounting seat lower 12 is adjusted and rotates clockwise, the connecting rod mounting seat lower 12 moves downwards, the end parts of the inner sides of 8 driving connecting rods 11 in the circumferential direction move downwards, the end parts of the other sides connected with the pressing rods 9 move upwards, and the positions of the pressing rods 9 pressing the flange edges of the end faces slightly offset outwards; the position of the pressing plate for pressing the end face flange can be adjusted through the two adjusting modes. The contact position of the end face flange and the upper end face of the hemispherical shell is adjusted according to the two adjusting modes.
Fifthly, after the inner supporting block of the inner supporting mechanism is adjusted to be in contact with the inner wall of the hemispherical shell, after the end flange is pressed and fixed by the pressing plate of the outer mechanism, a welding tool is used for full welding on a circumferential circle at the joint where the end flange is in contact with the hemispherical shell, and the hemispherical shell and the end flange are made of stainless steel 304 and are welded by argon arc welding with a welding rod which is a stainless steel welding rod.
Sixthly, after the joint of the lower end face of the end face flange and the hemispherical shell is fully welded for one circle, firstly, when the sliding sleeve 18 is adjusted to rotate anticlockwise, the sliding sleeve 18 drives the locking block 17 to move upwards simultaneously, the inner side end of the connecting rod 16 moves upwards, the outer side end of the connecting rod 16 moves downwards, the four inner supporting blocks are connected through the connecting seat 20 and move downwards simultaneously, and at the moment, the inner supporting block 19 is separated from the inner wall of the hemispherical shell; and then the first screw 13 is rotated by using a wrench tool, so that the extension height of the first screw is increased, the pressure rod 9 is promoted to be lifted, and therefore 8 pressure plates 15 which are tightly pressed on the upper surface of the end face flange are arranged and are simultaneously separated from the end face flange. And manually taking out a finished product welded by the hemispherical shell and the end face flange.
Although the illustrative embodiments of the present invention have been described above to enable those skilled in the art to understand the present invention, the present invention is not limited to the scope of the embodiments, and it is apparent to those skilled in the art that all the inventive concepts using the present invention are protected as long as they can be changed within the spirit and scope of the present invention as defined and defined by the appended claims.
Claims (1)
1. An assembling method based on a hemispherical body welding tool device is characterized by comprising the following steps:
the method comprises the following steps that firstly, a half-shell sphere (2) is placed on a square bottom plate (4) of a positioning base 1, the lower end face of the half-shell sphere is in contact with the upper plane of the square bottom plate (4), the outer diameter of a cylindrical boss on the square bottom plate (4) is equal to the inner diameter of the half-shell sphere (2), and the half-shell sphere (2) is positioned; an end face flange (8) is arranged on the upper end opening face of the half-shell sphere.
The second step, prop the mechanism in the adjustment, artifical specialized tool that uses adjusts to sliding sleeve (18), during clockwise rotation, sliding sleeve (18) drive latch segment (17) downstream simultaneously, the medial extremity of connecting rod (16) is downward, the outside end rebound of connecting rod (16), through the connection of connecting seat (20), make four interior kicking block rebound simultaneously, interior kicking block (19) laminate half spheroidal inner wall gradually this moment, make the inclined plane of 4 interior kicking blocks laminate fully with half spheroidal inner wall gradually, play the effect of inside support hemisphere casing, the supporting shoe material uses 6063, weight is lighter when making the adjustment, easy height-adjusting.
Thirdly, when end face flanges with different thicknesses are welded, firstly adjusting the extension height of the first screw (13) relative to the inner part of the screw (22), and when the thickness is increased, rotating the upper hexagonal head of the screw (13) by using a wrench to rotate anticlockwise to adjust the extension height to increase; when the thickness of the end face flange is reduced, the upper hexagonal head of the screw (13) is rotated clockwise by using a wrench, and the extension height of the screw is adjusted to be increased. And after the extending position of the screw rod I (13) is fixed, the pretightening force and the welding position of the end face flange are adjusted.
Fourthly, because the external threads of the first screw (13) are matched with the internal threads in the screw (22), when the lower connecting rod mounting seat (12) is adjusted and rotates anticlockwise, the lower connecting rod mounting seat (12) moves upwards, the end parts of the inner sides of 8 driving connecting rods (11) in the circumferential direction move upwards, the end parts of the other sides connected with the pressing rods (9) move downwards, and the positions of the pressing end face flange edges of the pressing rods (9) slightly deviate inwards; when the lower connecting rod mounting seat (12) is adjusted and rotates clockwise, the lower connecting rod mounting seat (12) moves downwards, the end parts of the inner sides of 8 driving connecting rods (11) in the circumferential direction move downwards, the end parts of the other sides connected with the pressing rods (9) move upwards, and the positions of the pressing end face flange edges of the pressing rods (9) slightly deviate outwards; the position of the pressing plate for pressing the end face flange can be adjusted through the two adjusting modes. The contact position of the end face flange and the upper end face of the hemispherical shell is adjusted according to the two adjusting modes.
Fifthly, after the inner supporting block of the inner supporting mechanism is adjusted to be in contact with the inner wall of the hemispherical shell, after the end flange is pressed and fixed by the pressing plate of the outer mechanism, a welding tool is used for full welding on a circumferential circle at the joint where the end flange is in contact with the hemispherical shell, and the hemispherical shell and the end flange are made of stainless steel 304 and are welded by argon arc welding with a welding rod which is a stainless steel welding rod.
Sixthly, after the joint of the lower end face of the end face flange and the hemispherical shell is fully welded for one circle, firstly, when the sliding sleeve (18) is adjusted to rotate anticlockwise, the sliding sleeve (18) drives the locking block (17) to move upwards simultaneously, the inner side end of the connecting rod (16) moves upwards, the outer side end of the connecting rod (16) moves downwards, the four inner supporting blocks are connected through the connecting seat (20) and move downwards simultaneously, and at the moment, the inner supporting blocks (19) are separated from the inner wall of the half-shell sphere; and then, a wrench tool is used for rotating the first screw (13) to increase the extension height of the first screw, so that the compression rod (9) is lifted, 8 compression plates (15) which are arranged and compressed on the upper surface of the end face flange leave the end face flange at the same time, and a finished product welded by the semispherical shell and the end face flange is manually taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011206308.3A CN114433984A (en) | 2020-11-02 | 2020-11-02 | Assembly method based on hemispherical welding tool device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011206308.3A CN114433984A (en) | 2020-11-02 | 2020-11-02 | Assembly method based on hemispherical welding tool device |
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| Publication Number | Publication Date |
|---|---|
| CN114433984A true CN114433984A (en) | 2022-05-06 |
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| CN202011206308.3A Pending CN114433984A (en) | 2020-11-02 | 2020-11-02 | Assembly method based on hemispherical welding tool device |
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2020
- 2020-11-02 CN CN202011206308.3A patent/CN114433984A/en active Pending
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Application publication date: 20220506 |