CN215967218U - Flange positioning pin capable of being used for accurate welding positioning and detection within tolerance range - Google Patents
Flange positioning pin capable of being used for accurate welding positioning and detection within tolerance range Download PDFInfo
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- CN215967218U CN215967218U CN202122547983.9U CN202122547983U CN215967218U CN 215967218 U CN215967218 U CN 215967218U CN 202122547983 U CN202122547983 U CN 202122547983U CN 215967218 U CN215967218 U CN 215967218U
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Abstract
The utility model discloses a flange positioning pin which can be used for accurate welding positioning and inspection within tolerance range, wherein both ends of a small positioning pin main body are respectively coaxially provided with a small positioning pin inspection end positioning column and a small positioning pin welding end positioning column, the outer end of the small positioning pin inspection end positioning column is coaxially provided with a small positioning pin inspection end flange positioning column, the outer end of the small positioning pin welding end positioning column is coaxially provided with a small positioning pin welding end flange positioning column, both ends of a large positioning pin main body are respectively coaxially provided with a large positioning pin inspection end positioning column and a large positioning pin welding end positioning column, the outer end of the large positioning pin inspection end positioning column is coaxially provided with a large positioning pin inspection end flange positioning column, and the outer end of the large positioning pin welding end positioning column is coaxially provided with a large positioning pin welding end flange positioning column. And whether the position of the welded flange is within the tolerance required by the drawing can be quickly checked.
Description
Technical Field
The utility model relates to the field of machinery, in particular to a flange positioning technology, and specifically relates to a flange positioning pin which can be used for accurate welding positioning and inspection within a tolerance range.
Background
The traditional flange positioning and inspection generally adopts two sets of equipment, has the problems of complex structure, high cost and great operation difficulty, and greatly increases the inspection time, so an improved technology is urgently needed to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a flange positioning pin which can be used for accurate welding positioning and inspection within a tolerance range, has simple structure, convenient operation and low cost, can be widely applied to positioning of end flanges of welded pipes, is provided with two ends with different sizes, and can quickly inspect whether the position of the welded flange is within the tolerance required by a drawing, wherein the outer diameter of the welding end is smaller than that of the inspection end, so as to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a flange locating pin which can be used for accurate welding location and inspection within tolerance range comprises a locating plate, a small hole locating pin assembly and a large hole locating pin assembly;
the positioning plate is provided with a large positioning hole and a small positioning hole;
the small-hole positioning pin assembly comprises a small positioning pin main body, a small positioning pin inspection end positioning column and a small positioning pin welding end positioning column are coaxially arranged at two ends of the small positioning pin main body respectively, a small positioning pin inspection end flange positioning column is coaxially arranged at the outer end of the small positioning pin inspection end positioning column, a small positioning pin welding end flange positioning column is coaxially arranged at the outer end of the small positioning pin welding end positioning column, the outer diameter of the small positioning pin inspection end flange positioning column is smaller than that of the small positioning pin welding end flange positioning column, and the small positioning pin inspection end positioning column and the small positioning pin welding end positioning column are matched with a small positioning hole formed in a positioning plate;
the big hole positioning pin subassembly includes big locating pin main part, big locating pin main part both ends are coaxial respectively to be provided with big locating pin inspection end reference column and big locating pin weld end reference column, the coaxial big locating pin inspection end flange reference column that is provided with in big locating pin inspection end reference column outer end, the coaxial big locating pin weld end flange reference column that is provided with in big locating pin weld end reference column outer end, the external diameter of big locating pin inspection end flange reference column is less than the external diameter of big locating pin weld end flange reference column, big locating pin inspection end reference column and big locating pin weld end reference column all cooperate with the big locating hole that the locating plate opened.
Preferably, a channel is formed in the large-hole positioning pin assembly in a penetrating mode along the axial direction, and the channel is used for reducing weight.
Preferably, the small positioning pin main body and the large positioning pin main body are both provided with anti-falling holes along the diameter direction and are connected with the clamp seat through a steel wire rope, so that the loss is avoided.
Preferably, the outer diameters of the small positioning pin inspection end positioning column and the small positioning pin welding end positioning column are consistent so as to be matched with the small positioning hole of the positioning plate.
Preferably, the outer diameters of the large positioning pin inspection end positioning column and the large positioning pin welding end positioning column are consistent so as to be matched with the large positioning hole of the positioning plate.
Compared with the prior art, the utility model has the beneficial effects that:
(1) through setting up little locating pin and big locating pin to through the cooperation of locating plate, can realize the location of flange, improve flange welded accuracy greatly.
(2) The small positioning pin and the large positioning pin are respectively provided with a welding end and a detection end at two ends, the outer diameter of the welding end is smaller than that of the detection end, and whether the position of the welded flange is in the tolerance required by a drawing can be quickly detected.
(3) The flange positioning pin also has the characteristics of simple structure, convenient operation and low cost.
Drawings
FIG. 1 is a schematic structural view of the assembled state of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a left side view of the structure of FIG. 2;
FIG. 4 is a schematic diagram of the right side view of FIG. 2;
FIG. 5 is a cross-sectional view of FIG. 2;
FIG. 6 is a schematic view of a small locating pin;
FIG. 7 is a schematic view of the construction of a large locating pin (at the inspection end identifier);
fig. 8 is a schematic view of a large locating pin (welding end mark).
In the figure: positioning plate 1, big locating hole 2, little locating hole 3, little locating pin 4, little locating pin main part 401, little locating pin inspection end reference column 402, little locating pin inspection end flange reference column 403, little locating pin welding end reference column 404, little locating pin welding end flange reference column 405, big locating pin 5, big locating pin main part 501, big locating pin inspection end reference column 502, big locating pin inspection end flange reference column 503, big locating pin welding end reference column 504, big locating pin welding end flange reference column 505.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments and the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present invention;
it should be noted that, in the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a flange locating pin which can be used for accurate welding location and inspection within tolerance range comprises a locating plate 1, a small hole locating pin assembly and a large hole locating pin assembly;
the positioning plate 1 is provided with a large positioning hole 2 and a small positioning hole 3;
the small-hole positioning pin assembly 4 comprises a small positioning pin main body 401, a small positioning pin inspection end positioning column 402 and a small positioning pin welding end positioning column 404 are coaxially arranged at two ends of the small positioning pin main body 401 respectively, a small positioning pin inspection end flange positioning column 403 is coaxially arranged at the outer end of the small positioning pin inspection end positioning column 402, a small positioning pin welding end flange positioning column 405 is coaxially arranged at the outer end of the small positioning pin welding end positioning column 404, the outer diameter of the small positioning pin inspection end flange positioning column 403 is smaller than the outer diameter of the small positioning pin welding end flange positioning column 405, the small positioning pin inspection end positioning column 402 and the small positioning pin welding end positioning column 404 are matched with a small positioning hole 3 formed in the positioning plate 1, and the outer diameters of the small positioning pin inspection end positioning column 402 and the small positioning pin welding end positioning column 404 are consistent;
the large positioning pin 5 comprises a large positioning pin main body 501, a large positioning pin inspection end positioning column 502 and a large positioning pin welding end positioning column 504 are coaxially arranged at two ends of the large positioning pin main body 501 respectively, a large positioning pin inspection end flange positioning column 503 is coaxially arranged at the outer end of the large positioning pin inspection end positioning column 502, a large positioning pin welding end flange positioning column 505 is coaxially arranged at the outer end of the large positioning pin welding end positioning column 504, the outer diameter of the large positioning pin inspection end flange positioning column 503 is smaller than that of the large positioning pin welding end flange positioning column 505, the large positioning pin inspection end positioning column 502 and the large positioning pin welding end positioning column 504 are matched with a large positioning hole 2 formed in a positioning plate 1, the outer diameters of the large positioning pin inspection end positioning column 502 and the large positioning pin welding end positioning column 504 are consistent,
anti-falling holes are formed in the small positioning pin main body 401 and the large positioning pin main body 501 along the diameter direction.
The use method and the principle are as follows: the method comprises the steps of firstly fixing a pipe connected with a flange on a clamp, and then customizing a small positioning assembly and a large positioning pin assembly according to the caliber of the pipe and the hole position of the flange, so that the flange can be easily inserted to ensure accurate positioning when the hole of the flange is machined to the minimum. Then, the flange to be welded is welded with the positioning plate 1, the large hole of the flange corresponds to the large positioning hole 2 of the positioning plate 1, the small hole of the flange corresponds to the small positioning hole 3 of the positioning plate 1, then the small positioning pin welding end flange positioning column 405 of the small positioning pin 4 penetrates through the small positioning hole 3 of the top plate and is inserted into the small hole of the flange, at the moment, the small positioning pin welding end positioning column 404 is positioned in the small positioning hole 3 of the positioning plate 1, the large positioning pin welding end flange positioning column 505 of the large positioning pin 5 penetrates through the large positioning hole 2 of the top plate and is inserted into the large hole of the flange, at the moment, the large positioning pin welding end positioning column 504 is positioned in the large positioning hole 2 of the positioning plate 1, and the flange is welded with the end face of the pipe. After welding, the small positioning pin 4 and the large positioning pin assembly are pulled out, the small positioning pin inspection end positioning column 402 and the large positioning pin inspection end positioning column 502 are respectively inserted into the small hole and the large hole of the flange again for tolerance range inspection, the end is used for inspection, and the design size of the inspection end mainly refers to the positioning flange hole machining size and the position precision of the flange hole required in the welding assembly drawing. Because the welding can cause shrinkage deformation, if the welding end (the small positioning pin welding end flange positioning column 405 and the large positioning pin welding end flange positioning column 505) can not be freely inserted after welding, the welding end can be checked by using the checking end (the small positioning pin checking end flange positioning column 403 and the large positioning pin checking end flange positioning column 503), and if the checking end can be freely inserted, the position of the welded flange is proved to be in the tolerance required by the drawing. The flange welding device is reasonable in structure, the flange can be positioned by arranging the small positioning pin 4 and the large positioning pin 5 and matching the positioning plate 1, and the flange welding accuracy is greatly improved; the two ends of the small positioning pin 4 and the large positioning pin 5 are respectively provided with a welding end and a checking end, the outer diameter of the welding end is smaller than that of the checking end, and whether the position of the welded flange is within the tolerance required by a drawing can be quickly checked; the flange positioning pin also has the characteristics of simple structure, convenient operation and low cost.
The utility model is not described in detail, but is well known to those skilled in the art.
Finally, it is to be noted that: although the present invention has been described in detail with reference to examples, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (5)
1. The utility model provides a flange locating pin that can be used to accurate welding position and inspection within the tolerance range which characterized in that: comprises a positioning plate (1), a small hole positioning pin component and a large hole positioning pin component;
the positioning plate (1) is provided with a large positioning hole (2) and a small positioning hole (3);
the small-hole positioning pin assembly (4) comprises a small positioning pin main body (401), a small positioning pin inspection end positioning column (402) and a small positioning pin welding end positioning column (404) are coaxially arranged at two ends of the small positioning pin main body (401), a small positioning pin inspection end flange positioning column (403) is coaxially arranged at the outer end of the small positioning pin inspection end positioning column (402), a small positioning pin welding end flange positioning column (405) is coaxially arranged at the outer end of the small positioning pin welding end positioning column (404), the outer diameter of the small positioning pin inspection end flange positioning column (403) is smaller than that of the small positioning pin welding end flange positioning column (405), and the small positioning pin inspection end positioning column (402) and the small positioning pin welding end positioning column (404) are matched with a small positioning hole (3) formed in the positioning plate (1);
the large-hole positioning pin component (5) comprises a large positioning pin main body (501), two ends of the large positioning pin main body (501) are respectively and coaxially provided with a large positioning pin inspection end positioning column (502) and a large positioning pin welding end positioning column (504), the outer end of the large positioning pin inspection end positioning column (502) is coaxially provided with a large positioning pin inspection end flange positioning column (503), the outer end of the large positioning pin welding end positioning column (504) is coaxially provided with a large positioning pin welding end flange positioning column (505), the outer diameter of the large positioning pin inspection end flange positioning column (503) is smaller than that of the large positioning pin welding end flange positioning column (505), and the large positioning pin inspection end positioning column (502) and the large positioning pin welding end positioning column (504) are matched with a large positioning hole (2) formed in a positioning plate (1).
2. A flange dowel useful for precision weld positioning and in-tolerance inspection according to claim 1, wherein: and a channel penetrates through the inside of the large-hole positioning pin assembly (5) along the axis direction.
3. A flange dowel useful for precision weld positioning and in-tolerance inspection according to claim 1, wherein: the small positioning pin main body (401) and the large positioning pin main body (501) are both provided with anti-falling holes along the diameter direction.
4. A flange dowel useful for precision weld positioning and in-tolerance inspection according to claim 1, wherein: the small positioning pin inspection end positioning column (402) and the small positioning pin welding end positioning column (404) have the same outer diameter.
5. A flange dowel useful for precision weld positioning and in-tolerance inspection according to claim 1, wherein: the outer diameters of the large positioning pin checking end positioning column (502) and the large positioning pin welding end positioning column (504) are consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122547983.9U CN215967218U (en) | 2021-10-22 | 2021-10-22 | Flange positioning pin capable of being used for accurate welding positioning and detection within tolerance range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122547983.9U CN215967218U (en) | 2021-10-22 | 2021-10-22 | Flange positioning pin capable of being used for accurate welding positioning and detection within tolerance range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215967218U true CN215967218U (en) | 2022-03-08 |
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ID=80512623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122547983.9U Active CN215967218U (en) | 2021-10-22 | 2021-10-22 | Flange positioning pin capable of being used for accurate welding positioning and detection within tolerance range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215967218U (en) |
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2021
- 2021-10-22 CN CN202122547983.9U patent/CN215967218U/en active Active
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