CN220195982U - Large-caliber socket joint press fit type pipe fitting aligning die - Google Patents
Large-caliber socket joint press fit type pipe fitting aligning die Download PDFInfo
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- CN220195982U CN220195982U CN202321435319.8U CN202321435319U CN220195982U CN 220195982 U CN220195982 U CN 220195982U CN 202321435319 U CN202321435319 U CN 202321435319U CN 220195982 U CN220195982 U CN 220195982U
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- correction
- pipe fitting
- correcting
- die
- plane
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- 238000012937 correction Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model discloses a large-caliber socket joint pressing type pipe fitting correcting die, which belongs to the technical field of pipe fitting correction and comprises a die main body, wherein the die main body is in a round table shape, a through hole is formed in the middle of the round table shape, the bottom of the die main body is level with a horizontal plane, at least two correcting planes with different heights are arranged on the periphery of the die main body, two adjacent correcting planes are connected through an annular oblique angle, the sharp angle part of the annular oblique angle is 2-5mm higher than the higher correcting plane connected with the correcting plane, and the sharp angle part of the annular oblique angle is 6-9mm higher than the lower correcting plane connected with the correcting plane; the included angle between the edge of the upper correction plane connected with the annular bevel and the horizontal plane is 120 degrees plus or minus 5 degrees; by means of the die correction, the accuracy of the inner diameter and the outer diameter of the socket press-fit pipe fitting is improved, and therefore the quality of products is improved. The correction method is simple and convenient to use, and compared with a common correction mode, the correction efficiency is improved and the labor intensity is reduced.
Description
Technical Field
The utility model relates to the technical field of pipe fitting verification, in particular to a large-caliber socket joint pressing type pipe fitting correcting die.
Background
The welding head of the large-caliber (generally referred to as a spigot-and-socket press-fit pipe fitting with the diameters DN200, DN250 and DN 300) spigot-and-socket press-fit pipe fitting consists of a core sleeve a and a shell b, wherein the core sleeve and the shell a are formed by rolling plates, the out-of-roundness occasionally exceeds the allowable tolerance of the outer diameter, and the concentricity of the core sleeve and the shell cannot meet the technical requirement in the assembly process. Therefore, it is necessary to correct concentricity of the core sleeve and the outer shell, and as shown in fig. 4, the core sleeve a and the outer shell b constitute a joint, and the part of the joint opening, which is inserted by the main pipe when the crimping is installed, is a socket.
At present, a common correction mode is that a hard short rod or a cutter is inserted for correction, the correction is needed to be carried out along the socket for one circle, time and labor are wasted, and the roundness after the correction and whether the correction is qualified cannot be ensured.
Disclosure of Invention
The utility model aims to provide a large-caliber socket joint press-fit type pipe fitting aligning die for solving the problems.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the large-caliber socket joint pressing type pipe fitting correcting die comprises a die main body, wherein the die main body is in a circular truncated cone shape, a through hole is formed in the middle of the circular truncated cone shape, the bottom of the die main body is parallel to a horizontal plane, at least two correcting planes with different heights are arranged on the periphery of the die main body, two adjacent correcting planes are connected through an annular oblique angle, the sharp corner part of the annular oblique angle is 2-5mm higher than the higher correcting plane connected with the annular oblique angle, and the sharp corner part of the annular oblique angle is 6-9mm higher than the lower correcting plane connected with the annular oblique angle; the included angle between the edge of the upper correction plane connected with the annular bevel and the horizontal plane is 120 degrees plus or minus 5 degrees. According to the pipe fittings with different sizes, annular bevel angles with different diameters are arranged.
The height of the sharp corner is irrelevant to the correction plane, and the sharp corner is formed only by the angle. The height difference between the two correction planes is set to be 2-5mm so as to adapt to the height difference between the core sleeve and the shell of the pipe fitting of the socket joint pressing type to be corrected.
The included angle between the edge of the higher correction plane connected with the annular bevel and the horizontal plane is because a modification process is needed in the correction process, and the included angle is too large or too small to be beneficial to correction.
When the die is used for correcting the mouth, the pipe fitting is only required to be placed in the position corresponding to the mouth correcting die, the pressure is applied by mechanical equipment, the correction effect can be achieved, the labor intensity is reduced, and compared with the existing general correction mode, the correction can be completed in less than one fifth of the time, and the working efficiency is improved; the correction rate can reach more than 90 percent.
As a preferable technical scheme: the number of the annular bevel angles is three, and the width of the horizontal plane between two adjacent annular bevel angles is 35-45mm. The position of each bevel angle is determined according to the inner diameter and the outer diameter of the pipe fitting to be calibrated.
As a preferable technical scheme: and a through hole is formed in the middle of the die main body. Through the arrangement of the through holes, the weight of the mouth correcting die is reduced, otherwise, the die is too heavy to be convenient to carry and use;
compared with the prior art, the utility model has the advantages that: by means of the die correction, the accuracy of the inner diameter and the outer diameter of the socket press-fit pipe fitting is improved, and therefore the quality of products is improved. The correction method is simple and convenient to use, and compared with a common correction mode, the correction efficiency is improved and the labor intensity is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a structural dimension diagram of an embodiment of the present utility model;
FIG. 3 is a block diagram illustrating the operation of an embodiment of the present utility model;
fig. 4 is a block diagram of a weld joint of a large diameter socket press fitting pipe.
In the figure: 1. a mold body; 2. a through hole; 3. correcting the plane; 4. an annular bevel; 5. sharp corner; A. a pipe fitting welding head; B. a work table; a. a core sleeve; b. a housing.
Description of the embodiments
The utility model will be further described with reference to the accompanying drawings.
Examples
Referring to fig. 1, a large-caliber socket joint press-fit type pipe fitting aligning die comprises a die main body 1, wherein the die main body 1 is in a circular truncated cone shape, a through hole 2 is formed in the middle of the circular truncated cone shape, the bottom of the die main body 1 is level with a horizontal plane, at least two aligning planes 3 with different heights are arranged on the periphery of the die main body 1, two adjacent aligning planes 3 are connected through an annular oblique angle 4, sharp corners 5 of the annular oblique angle 4 are 2-5mm higher than the upper aligning planes 3 connected with the adjacent aligning planes, and sharp corners 5 of the annular oblique angle 4 are 6-9mm higher than the lower aligning planes 3 connected with the upper aligning planes; the included angle between the edge of the upper correction plane 3 connected with the annular bevel 4 and the horizontal plane is 120 degrees;
in this embodiment, the number of correction planes 3 is four, the number of annular bevel angles 4 is three, the specific size is shown in fig. 2, and the unit of size in fig. 2 is mm;
during operation, the die body 1 for correcting the mouth is placed on the stable workbench B, the socket joint pressing type pipe fitting welding head A to be corrected is placed above the die, the welding head core sleeve is ensured to be positioned in the annular inclined mouth with corresponding specification, pressure is applied downwards, the welding head core sleeve and the shell deform along the inclined mouth, after the welding head is pressed down to be in full contact with the correction plane 3 of the die for correcting the mouth (figure 3), the outer diameter of the welding head core sleeve and the inner diameter of the welding head shell reach the design size, and the correction is completed.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (3)
1. A large-caliber socket joint pressfitting formula pipe fitting school mouth mould which characterized in that: the novel plastic mold comprises a mold body (1), wherein the mold body (1) is in a circular truncated cone shape, the bottom of the mold body (1) is flush with a horizontal plane, at least two correction planes (3) with different heights are arranged around the mold body (1), two adjacent correction planes (3) are connected through an annular bevel angle (4), the sharp corner part (5) of the annular bevel angle (4) is 2-5mm higher than the higher correction plane (3) connected with the annular bevel angle (4), and the sharp corner part (5) of the annular bevel angle (4) is 6-9mm higher than the lower correction plane (3) connected with the annular bevel angle; the included angle between the edge of the upper correction plane (3) connected with the annular bevel (4) and the horizontal plane is 120 DEG plus or minus 5 deg.
2. The large-caliber socket joint press-fit type pipe fitting aligning die as claimed in claim 1, wherein: the number of the annular bevel angles (4) is three, and the width of the horizontal plane between two adjacent annular bevel angles (4) is 35-45mm.
3. The large-caliber socket joint press-fit type pipe fitting aligning die as claimed in claim 1, wherein: a through hole (2) is arranged in the middle of the die main body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321435319.8U CN220195982U (en) | 2023-06-07 | 2023-06-07 | Large-caliber socket joint press fit type pipe fitting aligning die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321435319.8U CN220195982U (en) | 2023-06-07 | 2023-06-07 | Large-caliber socket joint press fit type pipe fitting aligning die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220195982U true CN220195982U (en) | 2023-12-19 |
Family
ID=89145742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321435319.8U Active CN220195982U (en) | 2023-06-07 | 2023-06-07 | Large-caliber socket joint press fit type pipe fitting aligning die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220195982U (en) |
-
2023
- 2023-06-07 CN CN202321435319.8U patent/CN220195982U/en active Active
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