A T-type three-way pipe processing device and method

Abstract

This invention discloses a T-shaped tee pipe processing device and method, solving the problems of unreliable and complex welding processes. It includes: opening an elliptical hole in a straight pipe section; the elliptical hole is arranged along the axial direction of the straight pipe section, and the circumference of the elliptical hole is equal to the circumference of the branch pipe section; and the elliptical hole is molded or pressed from the inside out to obtain a T-shaped tee pipe containing the branch pipe section. Through the above solution, this invention has the advantages of simple structure, convenient and reliable processing, and has high practical and promotional value in the field of pipe processing technology.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline processing, in particular to a T-shaped three-way pipe processing device and method. Background Art

[0002] The pipeline of this technology is mainly a metal pipeline for gas transmission, which is equipped with a three-way or multi-way pipeline when branching. This technology is mainly for T-type three-way pipes, such as Figure 1 At present, the conventional T-type three-way pipe uses a separate first straight pipe 10 and a second straight pipe 20 for welding connection. Before welding connection, it is necessary to open a circular hole in the first straight pipe 10 along the longitudinal direction and open a circular hole in the second straight pipe 20 in the horizontal direction, as shown in FIG. Figure 2 As shown, its processing equipment is a Chinese utility model with the announcement number CN215034717U and the name of a welding device for processing a reducing tee pipe. At present, the existing processing methods have the following problems: first, the processing efficiency of cutting holes in the first straight tube 10 and the second straight tube 20 respectively is low and complicated; second, when the first straight tube 10 and the second straight tube 20 are welded, they can only weld their outer edges, and it is difficult to weld the inside, and the welding difficulty is high; third, when the first straight tube 10 and the second straight tube 20 are welded and connected, a professional positioning fixture is required, which needs to ensure that the circular hole in the longitudinal direction opened on the first straight tube 10 coincides with the second straight tube 20. It can be seen that the processing efficiency in the prior art is low and the processing quality is poor. In addition, when the diameter of the second straight tube 20 is smaller than the diameter of the first straight tube 10, the difficulty of opening the circular holes on the first straight tube 10 and the second straight tube 20 increases, that is, the diameter of the first straight tube 10 is not equal to the aperture of the circular hole required to be opened on the first straight tube 10, and it needs to be accurately positioned and cut.

[0003] Therefore, it is urgent to propose a T-type three-way pipe processing device and method with simple structure, simple and reliable processing. Summary of the invention

[0004] In view of the above problems, the object of the present invention is to provide a T-type three-way pipe processing device and method, and the technical solution adopted by the present invention is as follows:

[0005] A T-shaped three-way pipe processing method is provided, wherein a straight pipe section is processed to obtain a T-shaped three-way pipe containing a branch pipe section, and the method comprises the following steps:

[0006] An elliptical hole is opened on the straight pipe section; the elliptical hole is arranged along the axial direction of the straight pipe section, and the circumference of the elliptical hole is equal to the circumference of the branch pipe section;

[0007] The elliptical hole is drawn or pressed from the inside to the outside to obtain a T-shaped three-way pipe containing branch pipe sections.

[0008] Furthermore, the T-shaped three-way pipe processing method further includes:

[0009] Use pipes with the same inner and outer diameters as the branch pipe sections for extension welding.

[0010] A processing device adopting a T-shaped three-way pipe processing method adopts a drawing die to obtain a T-shaped three-way pipe, which comprises: a lower workbench, a first workbench arranged on the lower workbench, a first lower die fixed on the first workbench, a lower pulling cylinder fixed on the lower workbench, a plurality of first supporting columns fixed on the first workbench, an upper workbench arranged on the first supporting columns, a first upper extrusion cylinder fixed on the upper workbench and penetrating the upper workbench, a first upper die arranged at the lower part of the first upper extrusion cylinder and arranged opposite to the first lower die, and a first inner die block penetrating the first lower die, the first workbench arrangement and connected to the lower pulling cylinder from top to bottom; a first circular groove is arranged in each of the first lower die and the first upper die; the straight pipe section is placed in the first circular groove;

[0011] The first inner module includes a first hemisphere, a first elliptical cylinder arranged at the bottom of the first hemisphere and connected to the elliptical hole sleeve, a first screw rod that penetrates the first hemisphere and the first elliptical cylinder from bottom to top and is threadedly connected to the first hemisphere and the first elliptical cylinder, and a first connecting rod arranged at the bottom of the first screw rod; the first connecting rod is connected to the lower pulling cylinder; the ball diameter of the first hemisphere is equal to the inner diameter of the branch pipe section.

[0012] Furthermore, a first mold mounting plate is arranged on the first workbench; the first lower mold is fixed on the first mold mounting plate; a first circular through hole is provided in the first lower mold, the first mold mounting plate and the first workbench; and the first inner module is placed in the first circular through hole.

[0013] Furthermore, the diameter of the first circular through hole is equal to the outer diameter of the branch pipe section; the first elliptical column has the same size as the elliptical hole.

[0014] A processing device adopts a T-type tee pipe processing method, and a T-type tee pipe is obtained by a die pressing, which includes: a second workbench, a rear support frame and a rotating shaft support rod fixed on the second workbench, a support block rotatably sleeved on the rotating shaft support rod and placed on the second workbench, a center rod fixed at one end on the rear support frame and supported by the support block at the other end, a circular column arranged on the center rod, a second elliptical column arranged on the circular column, a second lower mold and a second upper mold sleeved on the center rod, and a linkage plate arranged on both sides of the second lower mold and the second upper mold; a third circular groove is provided in the second lower mold; a fourth circular groove is provided in the second upper mold; a blind hole is provided in the fourth circular groove; the blind hole has the same outer diameter as the branch pipe section; the second elliptical column is sleeved and connected to the elliptical hole; the circular column has the same inner diameter as the branch pipe section; an extrusion cylinder is provided on the upper part of the second upper mold.

[0015] Furthermore, a first connecting nail is respectively provided on the side of the second lower mold; a second connecting nail is respectively provided on the side of the second upper mold; a strip groove is opened in the linkage plate; the first connecting nail and the second connecting nail are arranged in the strip groove.

[0016] Furthermore, at least two first guide posts are provided on the second lower mold; at least two first guide grooves are opened in the second upper mold; and the first guide posts are sleeved and connected with the first guide grooves in a one-to-one correspondence.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The present invention forms an elliptical hole on a straight pipe section, and the circumference of the elliptical hole is equal to the circumference of the branch pipe section. The portion around the elliptical hole is extruded and bulged by a drawing die or a pressing die to form a tubular branch pipe section, thereby forming a T-shaped three-way pipe containing the branch pipe section. There is no weld between the branch pipe section and the straight pipe section. The branch pipe section is not extruded from a part of the original straight pipe section, and has better sealing performance and high processing efficiency.

[0019] (2) If the branch pipe section needs to be extended, the present invention only needs to weld a pipe with the same inner diameter and external connection as the branch pipe section, and the subsequent welding operation is more convenient and less difficult.

[0020] (3) Under the extrusion action of the first upper extrusion cylinder, the first lower die and the first upper die are wrapped around the straight pipe section, thereby achieving reliable fixed support of the straight pipe section and avoiding deformation of the round pipe of the straight pipe section during the die drawing process. It is ensured that only the part that forms the branch pipe section can be pulled and deformed, and the support is reliable and the processing is convenient.

[0021] (4) The present invention provides a first hemisphere, a first elliptical cylinder, a first screw and a first connecting rod. The first elliptical cylinder is sleeved on the elliptical hole. On the one hand, the position of the straight pipe section is fixed; on the other hand, it is convenient for the first hemisphere to squeeze, expand and deform the elliptical hole, thereby ensuring that the branch pipe section is reliably formed.

[0022] (5) The present invention supports the central rod by setting a rear support frame and a support block, and sets a circular column and a second elliptical column on the central rod. The second elliptical column is connected to the elliptical hole sleeve, and the circular column is used to extrude to form a branch pipe section, and its processing efficiency is high.

[0023] (6) The present invention sets a second lower mold and a second upper mold, and sets a blind hole in the second upper mold. The circular column squeezes the four sides of the elliptical hole and forms a branch pipe section between the circular column and the blind hole, so that the fixed support is reliable.

[0024] (7) The present invention ensures the reliability of its processing by providing a linkage plate, a strip groove, a first guide column, a first connecting pin, a fourth circular groove, a first guide groove and a second connecting pin to perform guiding support and linkage action.

[0025] In summary, the present invention has the advantages of simple structure, easy and reliable processing, etc., and has high practical value and promotion value in the field of pipeline processing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a structural schematic diagram of a T-type three-way pipe.

[0028] Figure 2 The figure is a schematic diagram of the welding connection of a T-shaped three-way pipe in the prior art.

[0029] Figure 3 It is a structural schematic diagram of the straight pipe section of the present invention.

[0030] Figure 4 It is a schematic structural diagram of the drawing die in the present invention.

[0031] Figure 5 It is a structural schematic diagram of the first mold mounting plate, the first lower mold and the first inner module in the present invention.

[0032] Figure 6 It is a schematic structural diagram of the first inner module in the present invention.

[0033] Figure 7 It is a schematic structural diagram of the die in the present invention.

[0034] Figure 8 This is a first structural schematic diagram of a die without a straight pipe section in the present invention.

[0035] Fig. 9 This is a second structural schematic diagram of the die without a straight pipe section in the present invention.

[0036] Fig.10 It is a schematic structural diagram of the second lower mold in the present invention.

[0037] Fig.11 It is a schematic structural diagram of the second upper mold in the present invention.

[0038] In the above drawings, the component names corresponding to the reference numerals are as follows:

[0039] 1. Straight pipe section; 2. Branch pipe section; 10. First straight pipe; 20. Second straight pipe; 11. Elliptical hole; 101. Lower workbench; 102. First workbench; 103. First support column; 104. Upper workbench; 105. First upper extrusion cylinder; 106. Lower pull cylinder; 107. First mold mounting plate; 108. First lower mold; 109. First upper mold; 110. First inner module; 111. First circular through hole; 1101. First hemisphere; 1102. First elliptical column; 1103. First screw; 1 104, first connecting rod; 201, second workbench; 202, rear support frame; 203, second lower mold; 204, second upper mold; 205, shaft support rod; 206, support block; 207, center rod; 208, linkage plate; 209, strip groove; 210, circular column; 211, second elliptical column; 2031, third circular groove; 2032, first guide column; 2033, first connecting nail; 2041, fourth circular groove; 2042, first guide groove; 2043, second connecting nail; 2044, blind hole. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of this application clearer, the present invention is further described below in conjunction with the accompanying drawings and embodiments, and the embodiments of the present invention include but are not limited to the following embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0041] In this embodiment, the term "and / or" is merely a term used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0042] The terms "first" and "second" in the description and claims of this embodiment are used to distinguish different objects rather than to describe a specific order of objects. For example, a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.

[0043] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0044] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more than two. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

[0045] like Figure 1 , Figure 3 , Figures 4 to 11 As shown, this embodiment provides a T-shaped three-way pipe processing method, which processes a straight pipe section 1 to obtain a T-shaped three-way pipe containing a branch pipe section 2, which mainly includes the following steps:

[0046] In the first step, an elliptical hole 11 is opened on the straight pipe section 1 by using a laser; the elliptical hole 11 is arranged along the axial direction of the straight pipe section 1 , and the circumference of the elliptical hole 11 is equal to the circumference of the branch pipe section 2 .

[0047] In the second step, the elliptical hole 11 is drawn or pressed from the inside to the outside to obtain a T-shaped three-way pipe containing the branch pipe section 2.

[0048] In the third step, if the branch pipe section 2 needs to be extended, a pipe with the same inner diameter and outer diameter as the branch pipe section 2 is used for extension welding.

[0049] In this embodiment, the portion around the elliptical hole 11 is extruded, which can be formed by a drawing die or a pressing die. Here, the structure of the processing device for obtaining a T-shaped three-way pipe by a drawing die is as follows: it includes: a lower workbench 101, a first workbench 102 arranged on the lower workbench 101, a first lower die 108 fixed on the first workbench 102, a lower pulling cylinder 106 fixed on the lower workbench 101, a plurality of first support columns 103 fixed on the first workbench 102, an upper workbench 104 arranged on the first support columns 103, a first upper extrusion cylinder 105 fixed on the upper workbench 104 and penetrating the upper workbench 104, a first upper die 109 arranged at the lower part of the first upper extrusion cylinder 105 and arranged opposite to the first lower die 108, and a first inner module 110 penetrating the first lower die 108 from top to bottom, arranged on the first workbench 102, and connected to the lower pulling cylinder 106. Among them, the first inner module 110 includes a first hemisphere 1101, a first elliptical cylinder 1102 arranged at the bottom of the first hemisphere 1101 and sleeved with the elliptical hole 11, a first screw 1103 that penetrates the first hemisphere 1101 and the first elliptical cylinder 1102 from bottom to top and is threadedly connected to the first hemisphere 1101 and the first elliptical cylinder 1102, and a first connecting rod 1104 arranged at the lower part of the first screw 1103.

[0050] In this embodiment, a first circular groove is provided in each of the first lower mold 108 and the first upper mold 109, and the straight pipe section 1 is clamped in the first circular grooves of the first lower mold 108 and the first upper mold 109. A first mold mounting plate 107 is provided on the first workbench 102, and the first lower mold is fixed on the first mold mounting plate 107. In addition, a first circular through hole 111 is provided in the first lower mold 108, the first mold mounting plate 107 and the first workbench 102. Among them, the first inner mold block 110 is placed in the first circular through hole 111. In this embodiment, the first connecting rod 1104 is connected to the lower pull cylinder 106.

[0051] In this embodiment, the diameter of the first hemispherical body 1101 is equal to the inner diameter of the branch pipe section 2 , the diameter of the first circular through hole 111 is equal to the outer diameter of the branch pipe section 2 , and the first elliptical column 1102 is the same size as the elliptical hole 11 .

[0052] When in use, the elliptical hole 11 is facing downward and is sleeved on the first screw 1103. The first hemisphere 1101 and the first elliptical column 1102 are placed from the straight pipe section 1 and are threadedly connected to the first screw 1103. After the connection, the first upper extrusion cylinder 105 is used to drive the first upper die 109 to approach the first lower die 108 and squeeze and support the outer edge of the straight pipe section 1. The lower pulling cylinder 106 is then used to pull the first hemisphere 1101 and the first elliptical column 1102 downward, and the first elliptical column 1102 is sleeved in the elliptical hole 11, and the first hemisphere 1101 and the first elliptical column 1102 are continuously pulled downward, so that the first hemisphere 1101 squeezes the inner wall around the elliptical hole 11 and deforms it into the pipe section 2, and the drawing die forming of the T-shaped three-way pipe is completed. It should be noted that the processing equipment is suitable for the case where the straight pipe section 1 has a larger diameter and can be installed with the first hemisphere 1101 and the first elliptical cylinder 1102 .

[0053] In addition, when the pipe diameter is small or in general use, the present embodiment can adopt die pressing to obtain a T-shaped three-way pipe. Specifically, the processing device includes: a second workbench 201, a rear support frame 202 and a shaft support rod 205 fixed on the second workbench 201, a support block 206 rotatably sleeved on the shaft support rod 205 and placed on the second workbench 201, a center rod 207 with one end fixed on the rear support frame 202 and the other end supported by the support block 206, a circular column 210 disposed on the center rod 207, a second elliptical column 211 disposed on the circular column 210, a second lower mold 203 and a second upper mold 204 sleeved on the center rod 207, and a linkage plate 208 disposed on both sides of the second lower mold 203 and the second upper mold 204. A strip groove 209 is provided in the linkage plate 208, a first connecting pin 2033 is provided on the side of the second lower mold 203, and a second connecting pin 2043 is provided on the side of the second upper mold 204, and the first connecting pin 2033 and the second connecting pin 2043 are provided in the strip groove 209. Therefore, the second lower mold 203 can move up and down with the second upper mold 204.

[0054] In this embodiment, a third circular groove 2031 is provided in the second lower mold 203, a fourth circular groove 2041 is provided in the second upper mold 204, and a blind hole 2044 is provided in the fourth circular groove 2041, and the blind hole 2044 has the same outer diameter as the branch pipe section 2. The second elliptical column 211 is sleeved and connected with the elliptical hole 11, and the circular column 210 has the same inner diameter as the branch pipe section 2. In order to achieve the guiding connection, at least two first guide columns 2023 are provided on the second lower mold 203, and at least two first guide grooves 2042 are provided in the second upper mold 204, and the first guide columns 2023 are sleeved and connected with the first guide grooves 2042 in a one-to-one correspondence.

[0055] When in use, the support block 206 is rotated with the rotating shaft support rod 205 as support, so that the support block 206 is away from the bottom of the center rod 207, and the straight pipe section 1 can be inserted, and the elliptical hole 11 faces upward, and is sleeved on the second elliptical column 211. The support block 206 is rotated to close, so that the support block 206 supports the lower outer part of the center rod 207. An extrusion cylinder is set on the upper part of the second upper mold 204 to squeeze the second upper mold 204 downward, squeeze the straight pipe section 1, and form a branch pipe section 2 between the blind hole 2044 and the circular column.

[0056] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any changes that adopt the design principles of the present invention and are made through non-creative labor on this basis should fall within the protection scope of the present invention.

Claims

1. A method for processing a T-shaped tee pipe, wherein a straight pipe section (1) is processed to obtain a T-shaped tee pipe having a branch pipe section (2), wherein: The following steps are involved: An elliptical hole (11) is provided on the straight pipe section (1); the elliptical hole (11) is arranged along the axial direction of the straight pipe section (1), and the circumference of the elliptical hole (11) is equal to the circumference of the branch pipe section (2); The elliptical hole (11) is drawn from the inside to the outside to obtain a T-shaped three-way pipe containing a branch pipe section (2); The T-shaped three-way pipe is obtained by drawing a die, and comprises: a lower workbench (101), a first workbench (102) arranged on the lower workbench (101), a first lower die (108) fixed on the first workbench (102), a lower drawing cylinder (106) fixed on the lower workbench (101), a plurality of first support columns (103) fixed on the first workbench (102), an upper workbench (104) arranged on the first support columns (103), and a first lower die (108) fixed on the upper workbench (104) and passing through the first support columns (103). A first upper extrusion cylinder (105) is arranged on the workbench (104); a first upper mold (109) is arranged at the lower part of the first upper extrusion cylinder (105) and is arranged opposite to the first lower mold (108); and a first inner mold block (110) passes through the first lower mold (108) from top to bottom, is arranged on the first workbench (102), and is connected to the lower pulling cylinder (106); a first circular groove is arranged in each of the first lower mold (108) and the first upper mold (109); and the straight pipe section (1) is placed in the first circular groove; The first inner module (110) comprises a first hemisphere (1101), a first elliptical column (1102) arranged at the bottom of the first hemisphere (1101) and sleeve-connected to the elliptical hole (11), a first screw rod (1103) penetrating the first hemisphere (1101) and the first elliptical column (1102) from bottom to top and connected to the first hemisphere (1101) and the first elliptical column (1102) by threaded connection, and a first connecting rod (1104) arranged at the bottom of the first screw rod (1103); the first connecting rod (1104) is connected to the lower pulling cylinder (106); the ball diameter of the first hemisphere (1101) is equal to the inner diameter of the branch pipe section (2); A first mold mounting plate (107) is disposed on the first workbench (102); the first lower mold is fixed on the first mold mounting plate (107); a first circular through hole (111) is provided in the first lower mold (108), the first mold mounting plate (107) and the first workbench (102); the first inner mold block (110) is placed in the first circular through hole (111); The diameter of the first circular through hole (111) is equal to the outer diameter of the branch pipe section (2); and the first elliptical column (1102) has the same size as the elliptical hole (11).

2. A T-shaped three-way pipe processing method according to claim 1, characterized in that: Also includes: A pipe with the same inner and outer diameters as the branch pipe section (2) is used for extension welding.

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