CN211727093U

CN211727093U - Pipe fitting flanging device

Info

Publication number: CN211727093U
Application number: CN201921996597.4U
Authority: CN
Inventors: 牟海峰
Original assignee: Zhejiang Franta Co ltd
Current assignee: Zhejiang Franta Co ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-10-23
Anticipated expiration: 2029-11-18

Abstract

The utility model relates to a pipeline flanging device, which comprises a base, two pressing parts and a driving part, wherein at least part of the two pressing parts are respectively accommodated at two ends of a pipe fitting to be flanged and can slide towards the pipe fitting to be flanged so as to be close to each other, and the driving part is positioned at a guide hole in the inner cavity of the pipe fitting to be flanged and is positioned between the two pressing parts; the device adopts a mode that two pressing pieces move from two ends of a pipeline to the interior of the pipeline and then act on the driving piece, so that the driving piece is broken out along the guide hole, the wall surface of the first pore passage, which is adjacent to the periphery of the guide hole, is turned inwards towards the second pore passage to realize flanging, and the flanging mode from inside to outside can ensure that the pressing pieces are accurately broken out from the guide hole without complex operation, thereby being more efficient and accurate in positioning; meanwhile, the pressing piece exerts force from two sides, so that the force acting on the driving piece is more uniform, the flanging is uniform, and cracks are not easy to generate.

Description

Pipe fitting flanging device

Technical Field

The utility model relates to a pipe fitting processing field especially relates to a pipe fitting flanging device.

Background

The clamping and pressing type stainless steel pipe is a water supply part for buildings, has the advantages of high connection strength, good vibration resistance, convenience and rapidness in construction, good sanitary and environment-friendly performance, small pipe flow pressure loss, strong system compatibility, corrosion resistance, scaling resistance and the like, can effectively prevent pollution caused by decay and quality, is a health barrier for household water, and is widely applied to a plurality of building waterway pipes. The three-way clamping and pressing type stainless steel pipe belongs to a common pipe type, wherein the third interface is manufactured by mainly adopting the processing technologies of pipe blanking, elliptical hole punching, flanging, flat head, welding and the like.

Wherein, the flanging process is difficult, fig. 1 and fig. 2 are the prior clamping-pressing type stainless steel pipe, after two steps of blanking and punching an elliptical hole are performed on the pipe, referring to fig. 1, a positioning hole 100 is formed on the side wall of the pipe body, then, outward flanging treatment is performed on the positioning hole 100, so that the positioning hole 101 in fig. 1 is turned over outward to form a flange 102 in fig. 2, the prior flanging process is to place an expansion piece with a front threaded hole in the pipe piece 100 to be flanged, connect the expansion piece from the outside and apply outward pulling force, so as to force the pipe wall to deform outward, thereby forming a flange of a third interface.

As patent numbers: chinese utility model patent CN200620083570.2 (publication No. CN2905260Y) discloses "a device for processing flanging of pipe hole", which limits the pipe in a fixed stop die holder, positions the flanging male die on a die supporting bottom plate, penetrates the die supporting bottom plate into the drilled pipe, penetrates the top end of the flanging male die into the hole on the pipe, presses the die pressing plate on the pipe, fastens the bottom end of the pull rod with the flanging male die, and pulls the pull rod by using the pulling device until the pull rod pulls the flanging male die out of the hole of the pipe, thereby processing the flanging of pipe hole.

Although the processing mode can process the flanging, the complex positioning and connection are needed to be carried out in the pipe, and the processing is time-consuming and labor-consuming; meanwhile, the pull rod can deviate in the pulling process to cause inaccurate positioning, and the formed flanging is easy to have the conditions of unevenness, cracks and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, provide a pipe fitting flanging device that turn-ups is efficient and the turn-ups is even, be difficult to produce crackle.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a pipe flanging device, comprising:

the base is provided with a first pore passage used for positioning the pipe fitting to be flanged, and the side wall of the first pore passage of the base is provided with a second pore passage corresponding to the guide hole on the side wall of the pipe fitting to be flanged;

the pressing pieces are at least partially accommodated at two ends of the pipe fitting to be flanged respectively and can slide towards the pipe fitting to be flanged so as to approach each other;

and the driving piece is positioned at the guide hole in the inner cavity of the pipe fitting to be flanged and is positioned between the two pressing pieces, and under the pushing action of mutual approaching of the two pressing pieces, the driving piece slides to the second pore passage through the guide hole so as to enable the periphery of the guide hole of the pipe fitting to be flanged to be outwards turned and folded to form the flange.

In order to guarantee that the driving piece can be in advance fixed a position in the pipe fitting, the horizontal arrangement of base is followed to first pore, the second pore is along vertical arrangement of base in the lower part of first pore just has opening downwards, and the guiding hole of pipe fitting just can be corresponding with the second pore like this, consequently, when the driving piece was put into inside the pipe fitting, the guiding hole also was in the state downwards, and the driving piece can directly move to the location of guiding hole department, need not extra location structure and assists.

In order to realize that the outward flanging of the pipe fitting is uniform, the driving piece is spherical, the diameter of the driving piece is larger than that of the guide hole in the side wall of the pipe fitting to be flanged, the guide hole can also be a non-standard round hole such as an elliptical hole, and the spherical driving piece can still ensure the uniformity of the flanging.

In order to ensure that the transverse acting force of the two pressing parts can push the driving part to move vertically, the pressing parts comprise a first pressing part and a second pressing part, the inner ends of the first pressing part and the second pressing part can be matched and combined with each other, pressing parts used for pushing the driving part are formed by combining the first pressing part and the second pressing part, and the pressing parts abut against the outer wall surface of the driving part when the first pressing part and the second pressing part are in a state of pushing the driving part.

In order to realize the insertion and assembly of the two pressing parts, specifically, the inner end of the first pressing part is provided with a guide post, correspondingly, the inner end of the second pressing part is provided with a sliding groove matched with the guide post, the first pressing part and the second pressing part are matched in a sliding way through the matching of the guide post and the sliding groove, the wall surface of one side of the guide post, which is adjacent to the driving part, is provided with an inclined surface inclining downwards from inside to outside, one side of the second pressing part, which is adjacent to the driving part, is provided with a concave surface used for positioning and matching the driving part, and the inclined surface and the concave surface together form the pressing part.

In order to facilitate the external acting force to be more stably transmitted to the two pressing parts, the outer ends of the first pressing part and the second pressing part are respectively provided with a stress part which is convenient for the pressing machine to press.

Compared with the prior art, the utility model has the advantages of: the utility model discloses a pipeline flanging device, the traditional pipeline flanging that abandons adopts from the external application of force, the mode that the pulling formed the turn-ups, adopt two pressure applying parts to move the form that acts on the driving piece from pipeline both ends to intraductal, thereby make the driving piece break out along the guiding hole, make the wall face that the first pore is close to the guiding hole periphery turn over the realization turn-ups towards the second pore, turn-ups mode from inside to outside is through applying the pressure and developing force from both sides through applying the pressure, on the one hand need not complicated operation, just can make the accurate alignment of pressure applying part break out the position, more high efficiency and location are accurate; meanwhile, the force acting on the driving piece is more uniform, the flanging is uniform, and cracks are not easy to generate.

Drawings

Fig. 1 is a schematic structural view of a pipe fitting to be flanged in an embodiment of the present invention;

FIG. 2 is a schematic structural view of the pipe fitting of FIG. 1 after flanging;

FIG. 3 is a schematic view of the fitting between the pipe and the base according to the embodiment of the present invention;

FIG. 4 is a schematic structural diagram of the embodiment of the present invention in which the pressing part acts on the driving member;

FIG. 5 is an exploded view of FIG. 4 from another angle;

fig. 6 is a schematic structural view of fig. 5 at another angle.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to fig. 6, in this embodiment, the pipe flanging device of the present invention includes a base 1, a pressing member 2 and a driving member 3, wherein the base 1 has a first hole 11 for positioning the pipe 100 to be flanged, and a second hole 12 is opened on a sidewall of the first hole 11 of the base 1, in this embodiment, the first hole 11 is transversely disposed, and the second hole 12 is vertically disposed at a lower portion of the first hole 11 and has a downward opening, and an upper end of the second hole 12 just corresponds to the guiding hole 101 on the sidewall of the pipe 100 to be flanged.

In this embodiment, there are two pressing members 2, at least part of the two pressing members 2 are respectively accommodated at two ends of the pipe 100 to be flanged and can slide towards the pipe 100 to be flanged to approach each other, and the driving member 3 is positioned in the guide hole 101 in the inner cavity of the pipe 100 to be flanged and located between the two pressing members 2, and under the pushing action of the two pressing members 2 approaching each other, the driving member 3 slides towards the second hole channel 12 through the guide hole 101, so that the periphery of the guide hole 101 of the pipe 100 to be flanged is turned outwards to form a flange.

Specifically, the pressing member 2 includes a first pressing member 21 and a second pressing member 22 whose inner ends are capable of matching and matching with each other, the first pressing member 21 and the second pressing member 22 are matched to form a pressing portion 2a for pushing the driving member 3, and the pressing portion 2a abuts against the outer wall surface of the driving member 3 in a state where the first pressing member 21 and the second pressing member 22 push the driving member 3. Through the action of the pressing parts 2a, the transverse movement of the two pressing parts 2 can be converted into the vertical movement of the driving part 3 by extruding the driving part 3, so that the side wall of the pipe fitting of the driving part 3 is realized, and the flanging is realized; in order to realize the relative sliding of the first pressing member 21 and the second pressing member 22, a guide post 211 is provided at the inner end of the first pressing member 21, correspondingly, a sliding slot 221 matching with the guide post 211 is provided at the inner end of the second pressing member 22, the first pressing member 21 and the second pressing member 22 are matched in a sliding manner by matching the guide post 211 with the sliding slot 221, a wall surface of one side of the guide post 211 adjacent to the driving member 3 is provided with a slope 2b inclining downwards from inside to outside, one side of the second pressing member 22 adjacent to the driving member 3 is provided with a concave surface 2c used for positioning and matching with the driving member 3, and the slope 2b and the concave surface 2c form a pressing part 2a together.

The driving member 3 in this embodiment can be pre-positioned at the guiding hole 101, and since the guiding hole 101 of the pipe can correspond to the second hole 12, when the driving member 3 is inserted into the pipe, the guiding hole 101 is also in a downward state, the driving member 3 can be directly moved to the guiding hole 101 for positioning, without the assistance of an additional positioning structure, the driving member 3 in this embodiment is spherical, and the diameter of the driving member 3 is larger than the diameter of the guiding hole 101 on the side wall of the pipe 100 to be flanged.

Claims

1. The utility model provides a pipe fitting flanging device which characterized in that includes:

the base (1) is provided with a first hole channel (11) for positioning the pipe fitting (100) to be flanged, and a second hole channel (12) corresponding to a guide hole (101) in the side wall of the pipe fitting (100) to be flanged is formed in the side wall of the first hole channel (11) of the base (1);

the two pressing pieces (2) are respectively and at least partially accommodated at two ends of the pipe fitting (100) to be flanged and can slide towards the pipe fitting (100) to be flanged so as to approach each other;

the driving piece (3) is positioned at the guide hole (101) in the inner cavity of the pipe fitting (100) to be flanged and positioned between the two pressing pieces (2), and under the pushing action that the two pressing pieces (2) are close to each other, the driving piece (3) slides towards the second pore passage (12) through the guide hole (101) so that the periphery of the guide hole (101) of the pipe fitting (100) to be flanged is turned outwards to form the flange.

2. The pipe flanging device of claim 1, wherein: the first pore canal (11) is arranged along the transverse direction of the base (1), and the second pore canal (12) is vertically arranged along the base (1) at the lower part of the first pore canal (11) and is provided with a downward opening.

3. The pipe flanging device of claim 1, wherein: the driving piece (3) is spherical, and the diameter of the driving piece (3) is larger than that of a guide hole (101) in the side wall of the pipe fitting (100) to be flanged.

4. The pipe flanging device of claim 1, wherein: the pressing piece (2) comprises a first pressing piece (21) and a second pressing piece (22) of which the inner ends can be matched and involuted with each other, the first pressing piece (21) and the second pressing piece (22) are involuted to form a pressing portion (2a) used for pushing the driving piece (3), and the pressing portion (2a) is abutted against the outer wall surface of the driving piece (3) when the first pressing piece (21) and the second pressing piece (22) are in a state of pushing the driving piece (3).

5. The pipe flanging device of claim 4, wherein: the inner end of the first pressing piece (21) is provided with a guide column (211), correspondingly, the inner end of the second pressing piece (22) is provided with a sliding groove (221) matched with the guide column (211), the first pressing piece (21) and the second pressing piece (22) are matched in a sliding mode through the matching of the guide column (211) and the sliding groove (221), the wall surface of one side, adjacent to the driving piece (3), of the guide column (211) is provided with a slope surface (2b) inclining downwards from inside to outside, one side, adjacent to the driving piece (3), of the second pressing piece (22) is provided with a concave surface (2c) used for positioning the matching driving piece (3), and the slope surface (2b) and the concave surface (2c) form the pressing portion (2a) together.

6. The pipe flanging device of claim 4, wherein: the outer ends of the first pressing piece (21) and the second pressing piece (22) are respectively provided with a stress part (4) which is convenient for the pressing machine to press.