CN209697866U - A kind of pipeline enlarging device - Google Patents

Abstract

The utility model discloses a kind of pipeline enlarging device, including flare formation mould and for the fixture of fixed -piping, the flare formation mould includes pedestal, guide tube, punch-pin and screw rod, screw rod passes through the through-hole opened up on pedestal and connect after passing through guide tube with punch-pin, between pedestal and guide tube, buffer layer is both provided between guide tube and punch-pin, the fixture is mainly made of upper clamp formwork and lower clamp formwork split, the upper clamp formwork and lower clamp formwork has opened up the die cavity with the matched cross section semicircular in shape of pipeline respectively, the entire circumferential direction of pipeline is clamped in upper clamp formwork and lower clamp formwork obvolvent, the nozzle of punch-pin push-in pipeline is carried out expanding under the drive of driving mechanism by flare formation mould.The utility model eliminates the mismatch error between flare formation mould and pipeline using the flare formation mould with elastic deformation ability, accurately carries out expanding, reduces abrasion, pipeline is effectively avoided to be in the presence of rupturing in expanding process.

Description

A kind of pipeline enlarging device

Technical field

The utility model relates to pipe fitting processing technique field more particularly to a kind of pipeline enlarging devices.

Background technique

Pipeline is the channel of pumped (conveying) medium, is widely used in all trades and professions.When carrying out pipeline connection, without flaring It is usually necessary to use connectors to be attached for pipeline, the pipeline with flaring can direct abutting joint, used without additional increase Connector saves the installation cost of pipeline.When carrying out expanding to pipeline, flare formation mould is generallyd use along pipeline Axial direction penetrate the nozzle of pipeline and carry out expanding, existing flare formation mould is whole rigid structure, in expanding In the process, flare formation mould is difficult to ensure high-precision with docking for pipeline, to will appear the situation of unbalance stress, is easy to cause Pipeline breaking, and flare formation mould serious wear, need frequent maintenance to replace, high production cost.

Utility model content

Technical problem to be solved in the utility model and the technical assignment of proposition are improved to the prior art, are provided A kind of pipeline enlarging device solves the unbalance stress serious wear in processing of the flare formation mould in current technology, is easy to cause The problem of piping failure.

In order to solve the above technical problems, the technical solution of the utility model is:

A kind of pipeline enlarging device, including flare formation mould and for the fixture of fixed -piping, the flare formation mould Including pedestal, guide tube, punch-pin and screw rod, screw rod passes through the through-hole opened up on pedestal and connect after passing through guide tube with punch-pin, described Pedestal be located at the tail end of guide tube, the punch-pin is located at guide tube front end, and between pedestal and guide tube, between guide tube and punch-pin It is both provided with buffer layer, the fixture is mainly made of upper clamp formwork and lower clamp formwork split, the upper clamp formwork and lower clamp formwork point The die cavity with the matched cross section semicircular in shape of pipeline has not been opened up, and the entire week of pipeline is clamped in upper clamp formwork and lower clamp formwork obvolvent To the nozzle of punch-pin push-in pipeline is carried out expanding under the drive of driving mechanism by flare formation mould.The utility model institute The pipeline enlarging device stated makes flare forming die have certain elastic deformation ability using buffer layer, in flare formation mould Punch-pin can eliminate the mismatch error between flare formation mould and pipeline by elastic deformation when being inserted into the nozzle of pipeline, so that expanding Mouth shaping mould accurately can carry out expanding to pipeline, reduce abrasion, extend the service life of flare formation mould, effectively avoid Pipeline is in the presence of rupturing in expanding process, improves yields, improves processing quality, reduces production cost.

Further, the front end of the guide tube is provided with the lower deep gouge being inserted into for punch-pin, the buffering between guide tube and punch-pin Layer is arranged in lower deep gouge, and the buffer layer is in U-shape along axial section, which covers axial end face and the week of punch-pin To outer wall, so that the buffer layer can provide axial and entire circumferential elastic buffer effect, it is ensured that flare formation mould can be stable Expanding is carried out to pipeline, reduces abrasion, avoids pipeline breaking, improves processing quality.

Further, the buffer layer is rubber mat layer, and use cost is low, and cushion performance is good.

Further, the front end of the punch-pin is provided with the arc-shaped transition section that outer diameter gradually increases.

Further, guide post and and guide post are respectively provided in the mating surface of the upper clamp formwork and both lower clamp formworks The pilot hole of cooperation.

Further, the die cavity of the upper clamp formwork and both lower clamp formworks is in bend pipe structure, for being flared to bend pipe Processing, is respectively provided with flare formation mould in two nozzles of bend pipe, can carry out flare formation to two nozzles of bend pipe simultaneously Processing.

Further, on the table, upper clamp formwork is driven by elevating mechanism and is moved up and down for lower clamp formwork connection.

Further, being provided on the workbench can fix along the movable movable plate of table top of workbench, lower clamp formwork It is also provided with two orthogonal screw rod jacking mechanisms for being used to position movable plate on movable plate, and on workbench, leads to Movable plate is crossed the position of lower clamp formwork to be adjusted flexibly, movable plate is then held out against by fixation by screw rod jacking mechanism, is protected The stability of lower clamp formwork, improves expanding precision during barrier expanding.

Compared with prior art, the utility model advantage is:

Pipeline enlarging apparatus structure described in the utility model is simple, compact, makes flare forming die using buffer layer Flexible deformability eliminates the mismatch error between flare formation mould and pipeline by elastic deformation, so that flare formation Mould accurately can carry out expanding to pipeline, reduce abrasion, extend the service life of flare formation mould, effectively pipeline is avoided to exist Rupturing occur in expanding process, and improves yields, improves processing quality, reduces production cost.

Detailed description of the invention

Fig. 1 is the overlooking structure diagram of pipeline enlarging device；

Fig. 2 is the side structure schematic view of pipeline enlarging device；

Fig. 3 is the structural schematic diagram of flare formation mould another embodiment.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

A kind of pipeline enlarging device disclosed in the utility model embodiment, structure is simple, compact, in process can be into Certain elastic deformation go to adapt to the butting error between pipeline and flaring die, reduces the abrasion of flaring die, extends and uses the longevity Life reduces maintenance, replacement frequency, effectively avoids pipeline breaking, reduces production cost.

As depicted in figs. 1 and 2, a kind of pipeline enlarging device mainly includes flare formation mould 1 and the folder for fixed -piping Tool 2, the flare formation mould 1 include pedestal 11, guide tube 12, punch-pin 13 and screw rod 14, and screw rod 14 passes through to be opened up on pedestal 11 Through-hole and pass through guide tube 12 after connect with punch-pin 13, after the completion of connection, pedestal 11 is located at the tail end of guide tube 12, and punch-pin 13 is located at 12 front end of guide tube, the front end of punch-pin 13 are provided with the arc-shaped transition section that outer diameter gradually increases, and play the role of being oriented to transition, avoid Pipeline breaking ensures processing quality, and is both provided with buffering between pedestal 11 and guide tube 12, between guide tube 12 and punch-pin 13 Layer 15, buffer layer 15 use rubber mat layer, and the fixture 2 is mainly made of upper clamp formwork 21 and 22 split of lower clamp formwork, and described is upper Clamping 21 and lower clamp formwork 22 have opened up the die cavity with the matched cross section semicircular in shape of pipeline respectively, and lower clamp formwork 22 is connected to work On platform 3, upper clamp formwork 21 drives up and down action by elevating mechanism, and the entire week of pipeline is clamped in upper clamp formwork 21 and 22 obvolvent of lower clamp formwork To so that effective fixed -piping, the stability of pipeline when ensureing expanding, improve machining accuracy, flare formation mould 1 is being driven The nozzle that punch-pin 13 is pushed into pipeline is subjected to expanding under the drive of mechanism.

It is respectively provided with guide post on the upper clamp formwork 21 of fixture 2 and the mating surface of both lower clamp formworks 22 and cooperates with guide post Pilot hole, ensure the accuracy of upper clamp formwork 21 and 22 split of lower clamp formwork, it is ensured that upper clamp formwork 21 and lower clamp formwork 22 can be reliable and stable Pipeline is gripped, improve processing stability and accuracy.

In the present embodiment, the die cavity of 22 the two of upper clamp formwork 21 and lower clamp formwork is in bend pipe structure, for expanding bend pipe Mouth processing, is respectively provided with flare formation mould in two nozzles of bend pipe, can be flared into simultaneously to two nozzles of bend pipe Type processing

Activity can be fixed on along the movable movable plate 31 of table top of workbench 3, lower clamp formwork 22 by being also provided on workbench 3 Two orthogonal screw rod jacking mechanisms 32 for being used to position movable plate 31, spiral shell are also provided on plate 31, and on workbench 3 Bar jacking mechanism 32 includes the fixed block being fixed on workbench 3 and the screw rod being screwed on the screw hole opened up on fixed block, is led to It crosses and screws screw rod and make screw rod withstand movable plate to be accurately positioned fixed movable plate 31, by movable plate 31 come the position to lower clamp formwork Set and be adjusted flexibly, improve flare formation mould 1 and tube fit accuracy, improve expanding precision, while adjustment by The position for the upper clamp formwork that elevating mechanism drives, it is ensured that 22 precise match of upper clamp formwork 21 and lower clamp formwork adjusts essence in lower clamp formwork position Movable plate 31 is held out against by fixation by screw rod jacking mechanism 32 after really, avoids the position of lower clamp formwork during expanding from occurring inclined It moves, ensures machining accuracy, reduce the abrasion of flare formation mould 1, pipeline processing is avoided to be in the presence of rupturing.

As shown in figure 3, the lower deep gouge 121 being inserted into for punch-pin 13, guide tube 12 and punch-pin can also be arranged in the front end of guide tube 12 Buffer layer 15 between 13 is arranged in lower deep gouge 121, and the buffer layer 15 is in U-shape along the axial section of punch-pin 13, i.e., should Buffer layer 15 covers the axial rear end face of punch-pin 13 and peripheral outer wall, so as to provide axial and entire circumferential elastic buffer

Above are merely preferred embodiments of the utility model, it is noted that above-mentioned preferred embodiment should not regard For limitations of the present invention, the protection scope of the utility model should be defined by the scope defined by the claims..For For those skilled in the art, without departing from the spirit and scope of the utility model, it can also make several Improvements and modifications, these improvements and modifications also should be regarded as the protection scope of the utility model.

Claims (8)

1. a kind of pipeline enlarging device, which is characterized in that including flare formation mould (1) and for the fixture (2) of fixed -piping, institute The flare formation mould (1) stated includes pedestal (11), guide tube (12), punch-pin (13) and screw rod (14), and screw rod (14) passes through pedestal (11) through-hole that opens up on simultaneously passes through guide tube (12) and connect afterwards with punch-pin (13), and the pedestal (11) is located at the tail of guide tube (12) End, the punch-pin (13) is located at guide tube (12) front end, and between pedestal (11) and guide tube (12), guide tube (12) and punch-pin (13) it being both provided between buffer layer (15), the fixture (2) is mainly made of upper clamp formwork (21) and lower clamp formwork (22) split, The upper clamp formwork (21) and lower clamp formwork (22) has opened up the die cavity with the matched cross section semicircular in shape of pipeline, upper clamp formwork respectively (21) and the entire circumferential direction of pipeline is clamped in lower clamp formwork (22) obvolvent, and flare formation mould (1) is under the drive of driving mechanism by punch-pin (13) nozzle for being pushed into pipeline carries out expanding.

2. pipeline enlarging device according to claim 1, which is characterized in that the front end of the guide tube (12) is provided with for convex The lower deep gouge (121) of mould (13) insertion, the buffer layer (15) between guide tube (12) and punch-pin (13) are arranged in lower deep gouge (121) It is interior, and the buffer layer (15) is in U-shape along axial section, and which covers the axial end face and circumferential direction of punch-pin (13) Outer wall.

3. pipeline enlarging device according to claim 1, which is characterized in that the buffer layer (15) is rubber mat layer.

4. pipeline enlarging device according to claim 1, which is characterized in that the front end of the punch-pin (13) is provided with outer diameter The arc-shaped transition section gradually increased.

5. pipeline enlarging device according to any one of claims 1 to 3, which is characterized in that the upper clamp formwork (21) and Guide post and the pilot hole with guide post cooperation are respectively provided in the mating surface of both lower clamp formworks (22).

6. pipeline enlarging device according to any one of claims 1 to 3, which is characterized in that the upper clamp formwork (21) and The die cavity of both lower clamp formworks (22) is in bend pipe structure.

7. pipeline enlarging device according to any one of claims 1 to 3, which is characterized in that the lower clamp formwork (22) is even It connects on workbench (3), upper clamp formwork (21) is driven by elevating mechanism and moved up and down.

8. pipeline enlarging device according to claim 7, which is characterized in that being provided on the workbench (3) can edge The movable movable plate of table top (31) of workbench (3), lower clamp formwork (22) are fixed on movable plate (31), and on workbench (3) It is also provided with two orthogonal screw rod jacking mechanisms (32) for being used to position movable plate (31).