CN111390411A - Titanium alloy arc section barrel welding assembly school shape device - Google Patents
Titanium alloy arc section barrel welding assembly school shape device Download PDFInfo
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- CN111390411A CN111390411A CN202010149613.7A CN202010149613A CN111390411A CN 111390411 A CN111390411 A CN 111390411A CN 202010149613 A CN202010149613 A CN 202010149613A CN 111390411 A CN111390411 A CN 111390411A
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/003—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
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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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- Engineering & Computer Science (AREA)
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- Arc Welding In General (AREA)
Abstract
A titanium alloy arc section barrel welding assembly shape correcting device comprises a transverse reinforcing component, an oblique reinforcing component and a positioning supporting block, wherein the transverse reinforcing component, the oblique reinforcing component and the positioning supporting block are installed inside an arc section barrel; the slant is strengthened the subassembly and is set up to two sets ofly, and the both ends of subassembly are strengthened to two sets of slants are passed through the location supporting shoe and are connected on the inner wall of segmental arc barrel, and with transversely strengthen the subassembly and constitute the triangle-shaped structure, segmental arc barrel circumference opening is in after transversely strengthening the regulation of subassembly, utilize the slant to strengthen the change of subassembly axial length in order to avoid segmental arc barrel circumference open-ended enstrophe or flare. The device can realize the consistency of the position and the size of the circumferential opening of the arc-section cylinder body and ensure the good straightness of the circumferential opening of the cylinder body, thereby creating good conditions for subsequent groove machining, assembly and welding.
Description
Technical Field
The invention belongs to the field of titanium alloy processing and manufacturing, and particularly relates to a welding, assembling and correcting device for a titanium alloy arc-section cylinder.
Background
The titanium alloy material has the advantages of light weight (the density is about 60 percent of that of steel), high strength (the yield limit can reach more than 800 MPa), seawater corrosion resistance and no magnetism. Therefore, despite the defects of high welding requirement, complex processing, high price and the like, the titanium alloy material is still the first choice material of the pressure-resistant structure for ocean engineering.
The pressure-resistant structure for ocean engineering is usually made of plates with large thickness due to the use safety of the structure, so that the forming difficulty of a pressure-resistant structure barrel is greatly increased, meanwhile, the titanium alloy has the resilience characteristic, the forming difficulty of the titanium alloy barrel is further improved, the forming and welding requirements are hardly met by the barrel and the dimensional accuracy such as the opening position diameter and the roundness of an arc section, and a great difficult problem is created for the correction, the groove processing, the assembly and the welding of a subsequent formed barrel and the control of the dimensional accuracy after the forming. And the open structure of the arc section cylinder body of the non-whole cylinder body can not provide enough rigidity to realize the inner diameter rounding of the cylinder body, the diameter consistency of the opening port is poor due to the flanging condition of the cylinder body, and the straightness cannot meet the groove machining requirement. Meanwhile, the weak rigidity of the opening cylinder body port is difficult to meet the requirements of subsequent processing and welding. The open port makes the correction of barrel and effectual size fixed more difficult, and the control degree of difficulty is promoted by a wide margin to the expansion and the reduction of arc shape and size, and the correction of the arc section barrel to large thickness titanium alloy, assembly and welding auxiliary device do not yet exist at present.
Disclosure of Invention
The invention aims to provide a welding, assembling and shape correcting device for a titanium alloy arc-section cylinder, which can realize the size correction of the large-thickness titanium alloy arc-section cylinder, ensure the stability of the size of the arc section of the cylinder, simultaneously ensure the effective control of different sizes in the length direction of the cylinder, ensure the consistency of the size of the arc section, realize the good matching of the size of the corrected arc-section cylinder with other arc sections, and further ensure the effective control of shape correction, assembly and welding sizes.
In order to achieve the purpose, the invention adopts the technical scheme that: a titanium alloy arc-section barrel welding, assembling and correcting device comprises a transverse reinforcing component, an oblique reinforcing component and a positioning supporting block, wherein the transverse reinforcing component, the oblique reinforcing component and the positioning supporting block are installed inside an arc-section barrel; the slant is strengthened the subassembly and is set up to two sets ofly, and the both ends of two sets of slant are strengthened the subassembly and are passed through the location supporting shoe and connect on the inner wall of segmental cylinder, and with horizontal reinforcement component constitutes the triangle-shaped structure, segmental cylinder circumference opening is in after the regulation of horizontal reinforcement component, utilize the slant to strengthen subassembly axial length's change in order to avoid segmental cylinder circumference open-ended enstrophe or flare.
The transverse reinforcing assembly comprises a transverse supporting beam, a fastening block and a screw rod, one end of the transverse supporting beam is detachably connected with the positioning supporting block, the other end of the transverse supporting beam is fixedly provided with the fastening block, the fastening block is rotatably connected with the polished rod end of the screw rod, and the threaded end of the screw rod is in threaded connection with the other positioning supporting block.
The oblique reinforcing assembly comprises an oblique supporting beam, a fastening block and a screw rod, one end of the oblique supporting beam is detachably connected with the positioning supporting block, the other end of the oblique supporting beam is fixed with the fastening block, the fastening block is rotatably connected with the polished rod end of the screw rod, and the threaded end of the screw rod is in threaded connection with the other positioning supporting block.
The positioning support blocks are arranged in three numbers, wherein two positioning support blocks are respectively positioned on the inner wall of the circumferential opening of the arc-section cylinder body, and the other positioning support block is positioned on the inner wall of the circumferential middle part of the arc-section cylinder body.
The oblique supporting component and the transverse supporting component are connected to the positioning supporting block at the circumferential opening of the arc-section cylinder body together.
The two groups of oblique reinforcing components are connected to the positioning supporting block at the circumferential middle part of the arc section cylinder body together.
And the positioning supporting block is provided with an inclined plane for connecting the inclined reinforcing component.
The detachable connection between the transverse supporting beam and the positioning supporting block is realized by the threaded connection of a screw rod.
The detachable connection between the oblique supporting beam and the positioning supporting block is realized by the threaded connection of a screw rod.
The transverse supporting beam and the oblique supporting beam are both made of I-shaped beams, square steel, cylinders or sectional materials.
The invention has the following beneficial effects: by adopting the welding, assembling and shape correcting device for the titanium alloy arc-section cylinder, the circumferential opening of the formed titanium alloy arc-section cylinder can be effectively adjusted, the consistency of the position and the size of the circumferential opening of the cylinder is realized, and the good straightness of the circumferential opening of the cylinder is ensured, so that good conditions are created for subsequent groove machining, assembling and welding. The design of the transverse and oblique reinforcing structures can not only ensure the size of the circumferential opening position of the cylinder body, but also ensure the roundness of the circumferential opening position of the cylinder body, and avoid the situations of closing or opening of the cylinder body, thereby ensuring the size precision of the groove processing of the cylinder body and the final assembly and welding of the cylinder body.
Drawings
FIG. 1 is a schematic structural view of the present invention;
the labels in the figure are: 1. the arc section cylinder body, 2, horizontal reinforcing component, 3, slant reinforcing component, 4, location supporting shoe, 5, horizontal supporting beam, 6, fastening block, 7, screw rod, 8, outer hexagon, 9, slant supporting beam.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, but the invention is not limited thereto.
Referring to the attached figure 1, the welding, assembling and shape correcting device for the titanium alloy arc-section barrel is characterized in that the arc-section barrel 1 in figure 1 is a cross-sectional schematic view, an opening at the upper part of the arc-section barrel 1 in the figure is a circumferential opening of the device, the device comprises three positioning support blocks, namely a transverse reinforcing component 2, an oblique reinforcing component 3 and two positioning support blocks 4, wherein the transverse reinforcing component 2, the oblique reinforcing component 3 and the positioning support blocks 4 are installed inside the arc-section barrel 1, the two positioning support blocks 4 are respectively welded on the inner walls of two sides of the circumferential opening of the arc-section barrel 1, the other positioning support block 4 is welded on the inner wall of the circumferential middle part of the arc-section barrel 1, and the two positioning support.
The transverse reinforcing component 2 is used for guaranteeing the adjustment of the circumferential opening size of the arc section barrel body 1, can realize the stretching reduction and the outer top expansion of the size of a barrel opening, and comprises a transverse supporting beam 5, a fastening block 6 and a screw 7, wherein one end of the transverse supporting beam 5 is detachably connected with the positioning supporting block 4 on one side of the opening position through an intermediate connecting piece, the other end of the transverse supporting beam 5 is fixedly provided with the fastening block 6, the fastening block 6 is rotatably connected with the polished rod end of the screw 7, so that the transverse supporting beam 5 is not moved when the screw 7 rotates, the threaded end of the screw 7 is in threaded connection with the positioning supporting block 4 on the other side of the circumferential opening position, and an outer hexagon 8 convenient for rotating the screw 7.
The slant strengthening component 3 is used for ensuring the adjustment of the circumferential opening size of the arc section cylinder body 1, and the phenomenon that the size of the cylinder body is influenced by the inward turning or outward expansion of the cylinder opening after transverse stretching is avoided, so that the size precision of the position of the cylinder opening after transverse shape correction is ensured. The inclined reinforcing assemblies 3 are arranged in two groups, have the same structure, can be symmetrically arranged and respectively comprise an inclined supporting beam 9, a fastening block 6 and a screw 7, one end of the inclined supporting beam 9 is detachably connected to a positioning supporting block 4 positioned on the inner wall of the circumferential middle part of the arc-section cylinder body 1 through an intermediate connecting piece, the other end of the inclined supporting beam 9 is fixedly provided with the fastening block 6, the fastening block 6 is rotatably connected with the polished rod end of the screw 7, the threaded end of the screw 7 is in threaded connection with the positioning supporting block 4 on one side of the opening position, and an outer hexagon 8 convenient for rotating the screw 7 is arranged on the screw 7.
Each inclined supporting beam 9 and one end of the transverse supporting beam 5 in the two groups of inclined reinforcing components 3 share one positioning supporting block 4, and the two inclined supporting beams 9 share the positioning supporting block 4 on the circumferential middle inner wall of the arc-section cylinder body 1, so that the two inclined supporting beams 9 and the transverse supporting beam 5 form a triangular structure to ensure the structural stability of the adjusted cylinder body.
The intermediate connecting piece can also select the screw 7.
The positioning supporting block 4 is provided with an inclined plane for connecting the inclined reinforcing component 9.
The transverse supporting beam 5 and the oblique supporting beam 9 are made of I-beams, square steel, cylinders or section bars.
When the device provided by the invention is used for correcting the shape of the opening on the circumferential direction of the titanium alloy arc section cylinder, the method can be carried out according to the following steps:
1. the positioning support blocks 4 are installed on the inner wall of the arc section cylinder body 1, then the transverse reinforcing component 2 and the oblique reinforcing component 3 are installed, and when the oblique reinforcing component 3 is installed, the middle connecting piece connected with the oblique support beam 9 is not connected with the corresponding positioning support block 4;
2. the screw 7 in the transverse reinforcing component 2 is rotated through the outer hexagon 8, the axial length of the transverse reinforcing component 2 is adjusted, and the transverse reinforcing component can be extended or shortened, so that the adjustment and the shape correction of the circumferential opening size of the arc section cylinder 1 are realized, and the stretching reduction and the outer top expansion of the opening size are realized;
3. the inclined supporting beam 9 is installed in place, then the screw 7 of the inclined reinforcing component 3 is rotated through the outer hexagon 8, the size and the roundness of the circumferential opening position of the arc-section cylinder 1 are effectively adjusted, and the phenomenon that the size of the cylinder is influenced by inward turning or outward expansion of the opening after transverse inward stretching or outward ejection is avoided.
4. After the adjustment is completed, the transverse reinforcing component, the oblique reinforcing component and the positioning supporting block are detached.
The following are illustrated by specific examples:
example 1: the thickness of the plate is 45mm, the diameter of the plate is 3000mm, the actual measurement size of the circumferential opening is 3010mm and is larger than 3000 mm. Therefore, the position of the opening needs to be corrected, the consistency of the subsequent groove machining and assembling size precision and the size of the final cylinder body of 3000mm are ensured, and the size is adjusted by adopting the invention.
In the adjustment, the stretching and the reduction of the opening size can be realized by shortening the axial length of the transverse reinforcing component 2, the inward stretching of the opening position can be effectively implemented by shortening the axial length of the oblique reinforcing component 3, and the inward turning of the opening position can be avoided, so that the opening size of the arc-section cylinder 1 can be adjusted, and the requirement of the diameter of the cylinder can be met.
Example 2: the plate thickness is 20mm, and the diameter is the semicircle titanium alloy barrel of 1500mm, and circumference opening actual measurement size is 1480mm, is less than 1500 mm. Therefore, the position of the opening needs to be corrected, the consistency of the subsequent groove machining and assembling size precision and the size of the final cylinder body of 1500mm are ensured, and the size is adjusted by adopting the invention.
In the adjustment, the outer top of the opening size can be expanded by stretching the axial length of the transverse reinforcing component 2, the opening position is effectively ejected outwards by stretching the axial length of the oblique reinforcing component 3, and the outward expansion of the opening position can be avoided, so that the opening size of the arc-section cylinder 1 can be adjusted, and the requirement on the diameter of the cylinder can be met.
While the foregoing is directed to embodiments of the present invention, it will be appreciated by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and it is intended that all such changes and modifications be considered as within the scope of the invention.
Claims (10)
1. The utility model provides a titanium alloy arc section barrel welding assembly school shape device which characterized in that: the device comprises a transverse reinforcing component (2), an oblique reinforcing component (3) and a positioning supporting block (4) which are arranged in an arc section cylinder body (1), wherein two ends of the transverse reinforcing component (2) are respectively connected to the inner wall of a circumferential opening of the arc section cylinder body (1) in a supporting mode through the positioning supporting block (4), and the change of the axial length of the transverse reinforcing component (2) is used for adjusting the circumferential opening size of the arc section cylinder body (1); subassembly (3) are strengthened to the slant sets up to two sets ofly, and the both ends of subassembly (3) are strengthened to two sets of slants are passed through location supporting shoe (4) and are connected on the inner wall of arc section barrel (1), and with transversely strengthen subassembly (2) and constitute the triangle-shaped structure, arc section barrel (1) circumference opening is in the warp transversely strengthen the regulation back of subassembly (2), utilize the slant to strengthen subassembly (3) axial length's change in order to avoid arc section barrel (1) circumference open-ended enstrophe or flare.
2. The titanium alloy arc segment cylinder welding, assembling and correcting device of claim 1, which is characterized in that: the transverse reinforcing assembly (2) comprises a transverse supporting beam (5), a fastening block (6) and a screw rod (7), one end of the transverse supporting beam (5) is detachably connected with the positioning supporting block (4), the other end of the transverse supporting beam is fixed with the fastening block (6), the fastening block (6) is rotatably connected with the polish rod end of the screw rod (7), and the threaded end of the screw rod (7) is in threaded connection with the other positioning supporting block (4).
3. The titanium alloy arc segment cylinder welding, assembling and correcting device of claim 3, wherein: subassembly (3) is strengthened to slant includes a slant supporting beam (9), fastening block (6) and screw rod (7), a slant supporting beam (9) one end with the connection can be dismantled in location supporting shoe (4), and the other end is fixed with fastening block (6), and the polished rod end of fastening block (6) and screw rod (7) rotates to be connected, the threaded end and another location supporting shoe (4) threaded connection of screw rod (7).
4. The titanium alloy arc segment cylinder welding, assembling and correcting device of claim 1, which is characterized in that: the number of the positioning supporting blocks (4) is three, wherein two positioning supporting blocks (4) are respectively positioned on the inner wall of the circumferential opening of the arc-section cylinder body (1), and the other positioning supporting block (4) is positioned on the inner wall of the circumferential middle part of the arc-section cylinder body (1).
5. The titanium alloy arc segment cylinder welding, assembling and correcting device of claim 4, wherein: the oblique supporting component (3) and the transverse supporting component (2) are connected to a positioning supporting block (4) at the circumferential opening of the arc-section cylinder body (1) together.
6. The titanium alloy arc segment cylinder welding, assembling and correcting device of claim 5, wherein: the two groups of oblique reinforcing components (3) are connected to the positioning support block (4) in the middle of the arc section cylinder body (1) in the circumferential direction.
7. The titanium alloy arc segment cylinder welding, assembling and correcting device of claim 6, wherein: and the positioning supporting block (4) is provided with an inclined plane for connecting the inclined reinforcing component (3).
8. The titanium alloy arc segment cylinder welding, assembling and correcting device of claim 2, wherein: the detachable connection between the transverse supporting beam (5) and the positioning supporting block (4) is realized by the threaded connection of a screw rod (7).
9. The titanium alloy arc segment cylinder welding, assembling and correcting device of claim 3, wherein: the detachable connection between the oblique supporting beam (9) and the positioning supporting block (4) is realized by the threaded connection of a screw rod (7).
10. The titanium alloy arc segment cylinder welding, assembling and correcting device of claim 3, wherein: the transverse supporting beam (5) and the oblique supporting beam (9) are both made of I-beams, square steel, cylinders or section bars.
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CN202010149613.7A CN111390411A (en) | 2020-03-06 | 2020-03-06 | Titanium alloy arc section barrel welding assembly school shape device |
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CN202010149613.7A CN111390411A (en) | 2020-03-06 | 2020-03-06 | Titanium alloy arc section barrel welding assembly school shape device |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112139751A (en) * | 2020-07-31 | 2020-12-29 | 四川明日宇航工业有限责任公司 | Device and method for calibrating small-curvature metal honeycomb structure part |
CN112246915A (en) * | 2020-09-25 | 2021-01-22 | 中国航空制造技术研究院 | Titanium alloy hemispherical shell shape correction device and shape correction method thereof |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1184632A1 (en) * | 1983-06-24 | 1985-10-15 | Трест "Металлургпрокатмонтаж" | Arrangement for assembling and calibrating tubes to be welded |
CN201300156Y (en) * | 2008-11-25 | 2009-09-02 | 浙江省交通工程建设集团有限公司 | Roundness corrector for steel casing |
CN102371464A (en) * | 2011-09-26 | 2012-03-14 | 张家港化工机械股份有限公司 | Large-diameter cylinder rounding tool |
CN205600149U (en) * | 2016-04-06 | 2016-09-28 | 中铁七局集团第三工程有限公司 | A supporting member for preventing warp in steel reinforcement cage course of working |
CN106311814A (en) * | 2016-10-25 | 2017-01-11 | 苏州天沃科技股份有限公司 | Assembling type circle supporting tool |
CN208107444U (en) * | 2018-03-21 | 2018-11-16 | 江苏华邦管业有限公司 | A kind of distortion-free glass reinforced plastic push pipe of the sealing of multilayered structure |
CN208746776U (en) * | 2018-09-07 | 2019-04-16 | 江西昌宇能源设备有限公司 | With the detachable SF double Deck Oil Storage Tank for reinforcing coil structures |
-
2020
- 2020-03-06 CN CN202010149613.7A patent/CN111390411A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1184632A1 (en) * | 1983-06-24 | 1985-10-15 | Трест "Металлургпрокатмонтаж" | Arrangement for assembling and calibrating tubes to be welded |
CN201300156Y (en) * | 2008-11-25 | 2009-09-02 | 浙江省交通工程建设集团有限公司 | Roundness corrector for steel casing |
CN102371464A (en) * | 2011-09-26 | 2012-03-14 | 张家港化工机械股份有限公司 | Large-diameter cylinder rounding tool |
CN205600149U (en) * | 2016-04-06 | 2016-09-28 | 中铁七局集团第三工程有限公司 | A supporting member for preventing warp in steel reinforcement cage course of working |
CN106311814A (en) * | 2016-10-25 | 2017-01-11 | 苏州天沃科技股份有限公司 | Assembling type circle supporting tool |
CN208107444U (en) * | 2018-03-21 | 2018-11-16 | 江苏华邦管业有限公司 | A kind of distortion-free glass reinforced plastic push pipe of the sealing of multilayered structure |
CN208746776U (en) * | 2018-09-07 | 2019-04-16 | 江西昌宇能源设备有限公司 | With the detachable SF double Deck Oil Storage Tank for reinforcing coil structures |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112139751A (en) * | 2020-07-31 | 2020-12-29 | 四川明日宇航工业有限责任公司 | Device and method for calibrating small-curvature metal honeycomb structure part |
CN112139751B (en) * | 2020-07-31 | 2022-02-11 | 四川明日宇航工业有限责任公司 | Method for calibrating small-curvature metal honeycomb structure part |
CN112246915A (en) * | 2020-09-25 | 2021-01-22 | 中国航空制造技术研究院 | Titanium alloy hemispherical shell shape correction device and shape correction method thereof |
CN112246915B (en) * | 2020-09-25 | 2022-01-07 | 中国航空制造技术研究院 | Titanium alloy hemispherical shell shape correction device and shape correction method thereof |
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