CN215919529U - Simple and easy minor diameter flange is taken over aligning device - Google Patents
Simple and easy minor diameter flange is taken over aligning device Download PDFInfo
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- CN215919529U CN215919529U CN202121420789.8U CN202121420789U CN215919529U CN 215919529 U CN215919529 U CN 215919529U CN 202121420789 U CN202121420789 U CN 202121420789U CN 215919529 U CN215919529 U CN 215919529U
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Abstract
The utility model relates to a simple small-diameter flange connecting pipe aligning device, which relates to the technical field of ensuring the verticality and the coaxiality by assembling and welding small-diameter flange connecting pipes in the chemical industry, in particular to a simple small-diameter flange connecting pipe aligning device, and comprises a hollow fixed sleeve main body, wherein one end of the fixed sleeve main body is provided with a first annular positioning groove, the other end of the fixed sleeve main body is provided with a second annular positioning groove, one end of the fixed sleeve main body, which is provided with the second annular positioning groove, is fixedly sleeved with an annular connecting platform, and the central axes of the first annular positioning groove, the second annular positioning groove and the fixed sleeve main body are all positioned on the same straight line; the flange connecting pipe assembling and welding device is simple in structure, convenient to operate, high in assembling and welding precision, particularly suitable for batch assembling and welding of flange connecting pipes, high in efficiency, convenient to install and disassemble and capable of being used repeatedly; only once positioning is needed, the assembly requirement can be met, errors caused by welding deformation can be prevented, and the labor intensity of manpower is reduced.
Description
Technical Field
The utility model relates to the technical field of ensuring verticality and coaxiality in small-diameter flange connecting pipe assembly welding in the chemical industry, in particular to a simple small-diameter flange connecting pipe alignment device.
Background
In the chemical industry, the verticality, the coaxiality, the misalignment amount and the flange gradient of the flange connecting pipe installation are key factors for controlling the manufacturing quality, and the requirements on a liquid level meter port with a smaller diameter, a thermometer port and the like are stricter. The traditional method for assembling and welding the pipe connecting flange comprises the following steps: the square is used for measuring and positioning assembly manually, and then lacing wire spot welding is adopted for fixing. The method cannot control deformation, particularly has large welding shrinkage of stainless steel, causes large deviation, cannot ensure quality, has low efficiency and needs subsequent adjustment and correction to waste time and labor under the condition that a plurality of small-diameter pipe orifices exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems in the background technology and provides a simple small-diameter flange connecting pipe alignment device which is used for correcting the verticality and the coaxiality of a flange and a thick-wall pipe, improving the assembly efficiency of assembly welding and ensuring the verticality and the coaxiality of an assembly welding product.
The utility model discloses a simple small-diameter flange connecting pipe alignment device, which comprises a hollow fixed sleeve main body, wherein one end of the fixed sleeve main body is provided with a first annular positioning groove, the other end of the fixed sleeve main body is provided with a second annular positioning groove, an annular connecting table is fixedly sleeved outside one end of the fixed sleeve main body, which is provided with the second annular positioning groove, and the central axes of the first annular positioning groove, the second annular positioning groove and the fixed sleeve main body are all positioned on the same straight line;
positioning baffle rings are arranged in the first annular positioning groove and the second annular positioning groove in a matching manner, and the difference between the inner diameter of each positioning baffle ring and the outer diameter of the connecting pipe is 0.2 mm;
a plurality of fixed connection devices are uniformly distributed on the annular connection table along the circumferential direction of the fixed sleeve main body, one end of each fixed connection device is fixedly connected with the annular connection table, the other end of each fixed connection device is fixedly connected with the flange, and the central axis of the fixed sleeve main body is parallel to the plane where the flange is located.
Preferably, the location keeps off the ring and all includes that the semicircular ring shape keeps off ring and semicircular right side and keeps off the ring, a left side keeps off the ring and all match the setting in the ring shape positioning groove of place, and keeps off the ring and keep off the ring all through the set screw with the fixed sleeving main part is fixed continuous on the right side.
Preferably, four threaded counter bores are uniformly distributed in the fixing sleeve main body and located at the bottom of the first annular positioning groove and the bottom of the second annular positioning groove respectively, the threaded counter bores located in the same annular positioning groove are uniformly distributed along the circumferential direction of the fixing sleeve main body, and the left retaining ring and the right retaining ring which are arranged in the first annular positioning groove and the second annular positioning groove in a matched mode are connected with the threaded counter bores through the set screws respectively.
Preferably, the fixed connection device comprises a positioning stud, wherein external threads are arranged at two ends of the positioning stud, the middle part of the positioning stud is of a polished rod structure, and the diameter of the positioning stud of the polished rod part is larger than that of the positioning stud provided with the external threads;
the flange edge is provided with a plurality of connecting holes which are uniformly distributed along the circumferential direction of the flange, the positions of the annular connecting table corresponding to the connecting holes are provided with mounting holes, the diameters of the connecting holes and the mounting holes are smaller than the diameter of the positioning studs of the polished rod part, and the number of the studs is the same as that of the connecting holes;
one end of the positioning stud penetrates through the mounting hole in the connecting table and then is connected with an upper locking nut, and the other end of the positioning stud penetrates through the flange and is connected with a lower locking nut.
Preferably, the studs of the polished rod portion are of equal length.
Preferably, four studs are provided.
Preferably, the thickness of the positioning baffle ring is equal to the depth of the circular positioning groove.
The flange connecting pipe assembling and welding device is simple in structure, convenient to operate, high in assembling and welding precision, particularly suitable for batch assembling and welding of flange connecting pipes, high in efficiency, convenient to install and disassemble and capable of being used repeatedly; only once positioning is needed, the assembly requirement can be met, errors caused by welding deformation can be prevented, and the labor intensity of manpower is reduced.
The successful development of the utility model not only meets the production requirement on operability, but also improves the assembly precision of equipment and pipelines in the industry.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Reference numerals: 1-fixing a sleeve main body, 2-positioning studs, 3-upper locking nuts, 4-positioning retaining rings, 5-fastening screws, 6-connecting pipes and 7-flanges.
Detailed Description
The utility model discloses a simple small-diameter flange connecting pipe alignment device, which comprises a hollow fixed sleeve main body 1, wherein one end of the fixed sleeve main body 1 is provided with a first annular positioning groove, the other end of the fixed sleeve main body 1 is provided with a second annular positioning groove, an annular connecting table is fixedly sleeved outside one end of the fixed sleeve main body 1, which is provided with the second annular positioning groove, and the central axes of the first annular positioning groove, the second annular positioning groove and the fixed sleeve main body 1 are all positioned on the same straight line;
the first annular positioning groove and the second annular positioning groove are both internally provided with positioning baffle rings 4 in a matching way, and the difference between the inner diameter of each positioning baffle ring 4 and the outer diameter of the connecting pipe 6 is 0.2 mm;
a plurality of fixed connection devices are uniformly distributed on the annular connection table along the circumferential direction of the fixed sleeve main body 1, one end of each fixed connection device is fixedly connected with the annular connection table, the other end of each fixed connection device is fixedly connected with the flange 7, and the central axis of the fixed sleeve main body 1 is parallel to the plane where the flange 7 is located.
The positioning retaining ring 4 comprises a semicircular left retaining ring and a semicircular right retaining ring, the left retaining ring and the right retaining ring are matched and arranged in the circular positioning groove, and the left retaining ring and the right retaining ring are fixedly connected with the fixing sleeve main body 1 through the set screws 5.
Four thread counter bores are uniformly distributed on the fixing sleeve main body 1 and located at the bottom of the first annular positioning groove and the bottom of the second annular positioning groove respectively, the thread counter bores located in the same annular positioning groove are uniformly distributed along the circumferential direction of the fixing sleeve main body 1, and the left retaining ring and the right retaining ring which are arranged in the first annular positioning groove and the second annular positioning groove in a matched mode are connected with the thread counter bores through the set screws 5 respectively.
The fixed connecting device comprises a positioning stud 2, wherein external threads are arranged at two ends of the positioning stud 2, the middle part of the positioning stud 2 is of a polished rod structure, the diameter of the positioning stud 2 of the polished rod part is larger than that of the positioning stud 2 provided with the external threads, and the difference between the two is at least 8 mm;
the flange 7 edge is provided with a plurality of connecting holes, the connecting holes are evenly distributed along the flange 7 circumference, the positions on the annular connecting table corresponding to the connecting holes are provided with mounting holes, the diameters of the connecting holes and the mounting holes are smaller than the diameter of the positioning studs 2 of the polished rod part, and the number of the studs is the same as the number of the connecting holes;
one end of the positioning stud 2 penetrates through the mounting hole on the connecting platform and then is connected with an upper locking nut 3, and the other end of the positioning stud 2 penetrates through the flange 7 and is connected with a lower locking nut.
The studs of the polished rod portion are of equal length.
The number of the studs is four.
The thickness of the positioning baffle ring 4 is equal to the depth of the circular positioning groove.
The flange 7 to be installed is placed on a workbench, attention is paid to taking protective measures on the sealing surface of the flange 7, the connecting platform on the fixing sleeve main body is fixedly connected with the flange 7 through the positioning studs 2, then the semicircular left retaining ring and the semicircular right retaining ring are respectively placed into the first circular ring-shaped positioning groove and the second circular ring-shaped positioning groove through the set screws 5 and are connected with the sleeve main body through the set screws, finally, the connecting pipe 6 is vertically inserted into the fixing sleeve main body 1, attention is paid to the fact that impurities such as oil stains and scrap iron on the outer wall of the connecting pipe 6 need to be removed in advance, after the spot welding is completed with the flange 7 group, the verticality of the flange 7 of the connecting pipe 6 is measured, and welding can be carried out after requirements are met. And after the welding is finished and the stand is carried out for a period of time, dismantling the tool. In the embodiment, the pipe cap is welded at the end part of the connecting pipe 6, the weld joint surplus height exists between the connecting pipe 6 and the pipe cap, and after the connecting pipe is welded with the flange 7, two sets of left retaining rings and right retaining rings need to be removed firstly when the tool is removed, and then the positioning stud 2 is removed.
Claims (7)
1. A simple small-diameter flange connecting pipe alignment device comprises a hollow fixing sleeve main body (1) and is characterized in that one end of the fixing sleeve main body (1) is provided with a first annular positioning groove, the other end of the fixing sleeve main body (1) is provided with a second annular positioning groove, an annular connecting table is fixedly sleeved outside one end of the fixing sleeve main body (1) provided with the second annular positioning groove, and the central axes of the first annular positioning groove, the second annular positioning groove and the fixing sleeve main body (1) are all located on the same straight line;
positioning baffle rings (4) are arranged in the first circular positioning groove and the second circular positioning groove in a matching manner, and the difference between the inner diameter of each positioning baffle ring (4) and the outer diameter of the connecting pipe (6) is 0.2 mm;
a plurality of fixed connection devices are uniformly distributed on the annular connection table along the circumferential direction of the fixed sleeve main body (1), one end of each fixed connection device is fixedly connected with the annular connection table, the other end of each fixed connection device is fixedly connected with the flange (7), and the central axis of the fixed sleeve main body (1) is parallel to the plane where the flange (7) is located.
2. The simple small-diameter flanged pipe aligning device according to claim 1, wherein the positioning retaining rings (4) each comprise a semicircular left retaining ring and a semicircular right retaining ring, the left retaining ring and the right retaining ring are respectively disposed in the circular positioning grooves in a matching manner, and the left retaining ring and the right retaining ring are respectively fixedly connected with the fixed sleeve main body (1) through the set screws (5).
3. The simple small-diameter flanged connection pipe aligning device according to claim 2, wherein four threaded counterbores are uniformly distributed on the fixing sleeve main body (1) at the bottom of the first annular positioning groove and the bottom of the second annular positioning groove, the threaded counterbores in the same annular positioning groove are uniformly distributed along the circumferential direction of the fixing sleeve main body (1), and the left retaining ring and the right retaining ring which are arranged in the first annular positioning groove and the second annular positioning groove in a matched manner are respectively connected with the threaded counterbores through the set screws (5).
4. The simple small-diameter flanged pipe aligning device according to claim 3, wherein the fixed connection device comprises a positioning stud (2), both ends of the positioning stud (2) are provided with external threads, the middle part of the positioning stud (2) is of a polished rod structure, and the diameter of the positioning stud (2) of the polished rod part is larger than that of the positioning stud (2) provided with the external threads;
a plurality of connecting holes are formed in the edge of the flange (7), the connecting holes are uniformly distributed along the circumferential direction of the flange (7), mounting holes are formed in the positions, corresponding to the connecting holes, on the annular connecting table, the diameters of the connecting holes and the mounting holes are smaller than those of the positioning studs (2) of the polished rod part, and the number of the studs is the same as that of the connecting holes;
one end of the positioning stud (2) penetrates through the mounting hole on the connecting table and then is connected with an upper locking nut (3), and the other end of the positioning stud (2) penetrates through the flange (7) and is connected with a lower locking nut.
5. The apparatus of claim 4, wherein the studs of the polished rod portion are of equal length.
6. A simple small diameter spud alignment device as defined in claim 5 wherein said studs are provided in the form of four.
7. A simple small-diameter flanged pipe aligning device as claimed in claim 6, wherein the thickness of the positioning retaining ring (4) is equal to the depth of the circular positioning groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121420789.8U CN215919529U (en) | 2021-06-24 | 2021-06-24 | Simple and easy minor diameter flange is taken over aligning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121420789.8U CN215919529U (en) | 2021-06-24 | 2021-06-24 | Simple and easy minor diameter flange is taken over aligning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215919529U true CN215919529U (en) | 2022-03-01 |
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ID=80398929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121420789.8U Active CN215919529U (en) | 2021-06-24 | 2021-06-24 | Simple and easy minor diameter flange is taken over aligning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215919529U (en) |
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2021
- 2021-06-24 CN CN202121420789.8U patent/CN215919529U/en active Active
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