CN109877183A - A kind of bypass branch pipe processing method of pipeline - Google Patents

A kind of bypass branch pipe processing method of pipeline Download PDF

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Publication number
CN109877183A
CN109877183A CN201910131892.1A CN201910131892A CN109877183A CN 109877183 A CN109877183 A CN 109877183A CN 201910131892 A CN201910131892 A CN 201910131892A CN 109877183 A CN109877183 A CN 109877183A
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CN
China
Prior art keywords
punch
main pipeline
reaming
areole
pipeline
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Pending
Application number
CN201910131892.1A
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Chinese (zh)
Inventor
肖波
陶航
敬维
向本成
叶永红
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Sichuan Long Stainless Stainless Steel Pipe Co Ltd
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Sichuan Long Stainless Stainless Steel Pipe Co Ltd
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Priority to CN201910131892.1A priority Critical patent/CN109877183A/en
Publication of CN109877183A publication Critical patent/CN109877183A/en
Pending legal-status Critical Current

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Abstract

The present invention discloses a kind of bypass branch pipe processing method of pipeline, areole is formed in the predeterminated position aperture of main pipeline tube wall, spherical reaming die body is built into main pipeline, and it is inserted into the first formed punch respectively at the both ends of main pipeline, second formed punch, first formed punch, the inclined inclined surface in main pipeline axial direction in front end in the insertion main pipeline of at least one of both second formed punches, drive the first formed punch, both second formed punches are close in main pipeline and squeeze promotion reaming die body to areole movement, reaming die body carries out reaming-forming to areole and processes to obtain flanging bore, extension is connected on flanging bore constitutes bypass branch pipe.The present invention uses spherical reaming die body to carry out reaming-forming, improves reaming-forming precision and quality, simple, convenient, high-efficient, it can be achieved that full automatic mechanical produces, reduction labor intensity is time saving and energy saving.

Description

A kind of bypass branch pipe processing method of pipeline
Technical field
The present invention relates to pipe fitting processing technique field more particularly to a kind of bypass branch pipe processing methods of pipeline.
Background technique
There are also the connecting bypass branch pipes on main pipeline other than being directly integrally formed for the mode of production tee tube, four-way pipe etc. Mode, traditional processing method is that an aperture is opened up on main pipeline, and a taper is then placed into inside main pipeline Reamer, the small end face aperture of reamer, then by the small end of reamer be located at aperture outside force application mechanism connect, Force application mechanism by reamer from aperture pull out, thus reamer by pore expansion theory at the flanging bore routed up outward, then to flange Hole modify and then connecting bypass branch pipe is finally made tee tube, four-way pipe etc. on flanging bore again.
Existing processing method needs to be placed into the reamer of taper is point-device in supervisor, needs reamer The accurate alignment apertures of small end, placement operation difficulty is big, inefficiency, during reamer is pulled out reaming from aperture, The axial direction of reamer is easy to appear the situation of skew, and the low precision of the flanging bore processed, centering is poor, be easy to cause flanging bore Wall unevenness, different in size, the peripheral distortion for the flanging bore that reaming-forming processes is serious, and processing quality difference is difficult to meet need It asks.
Summary of the invention
The technical problems to be solved by the invention and the technical assignment of proposition are improved to the prior art, and one kind is provided The bypass branch pipe processing method of pipeline solves to carry out reaming using areole of the reamer of taper to main pipeline in current technology The problem of molding, difficulty of processing is big, low efficiency, low precision.
In order to solve the above technical problems, the technical scheme is that
A kind of bypass branch pipe processing method of pipeline, which comprises the steps of:
A, areole is formed in the predeterminated position aperture of main pipeline tube wall;
B, it is built into spherical reaming die body in main pipeline, and is inserted into the first formed punch, second respectively at the both ends of main pipeline The front end of formed punch, at least one of both first formed punch, second formed punch being inserted into main pipeline is inclined in main pipeline Axial inclined surface, both the first formed punch of driving, second formed punch are close in main pipeline and squeeze promotion reaming die body to side wall Hole is mobile, and reaming die body carries out reaming-forming to areole and processes to obtain flanging bore;
C, extension is connected on flanging bore constitutes bypass branch pipe.
The bypass branch pipe processing method of pipeline of the present invention carries out reaming-forming using spherical reaming die body, spherical Reaming die body itself there is no a directionality, any position can be adopted to carry out areole reaming-forming, and any direction Reaming-forming effect be consistent, spherical reaming die body need to be only put into main pipeline, be eliminated using traditional The operation that the small end of tapered reamer is precisely aligned to aperture, processing method more convenient simple, effect are also needed when tapered reamer Rate is high, and passes through the front end contact of incline plane reaming die body of the first formed punch, the second formed punch that are inserted into main pipeline and push spherical shape Reaming die body moves reaming die body radially towards areole along main pipeline and reaches reaming-forming to areole formation extruding, and And since reaming die body is spherical in shape, upper reaming die body is all uniform to the dilating effect power of areole in any direction, It is all uniform, raising reaming-forming precision and quality in its entire circumferential direction to ensure that reaming-forming obtains flanging bore, the Reaming die body is obtained flanging bore from reaming-forming and squeezes out main pipeline by one formed punch, the second formed punch, then the first formed punch, the second formed punch Main pipeline is exited, the process of main pipeline areole reaming-forming is completed, it is easy to operate, high-efficient.
Further, in the step B, holding position is motionless after the second formed punch is inserted into from one end of main pipeline, reaming mould It is resisted against on the second formed punch in body merging main pipeline and makes reaming die body face areole, then the first formed punch is from main pipeline Other end insertion and close to the second formed punch, the first formed punch, the second formed punch synergistic effect squeeze and push reaming die body to side wall Hole is mobile to which areole reaming-forming is obtained flanging bore.Operation convenience and efficiency are improved, reaming die body is in main pipeline It is limited and is determined by the second formed punch along the position of main pipeline axial direction, it is ensured that reaming die body and areole are located at the same axial direction of main pipeline At position, so that it is guaranteed that reaming die body accurately carries out reaming-forming to areole, machining accuracy is improved.
Further, in the step B, second formed punch is fixed on the base, and the second formed punch is used to be inserted into master Upward, one end of main pipeline is sleeved on from top to bottom on the second formed punch for the front end of pipeline, then from the another of main pipeline End is put into reaming die body, and reaming die body is fallen on the second formed punch under Gravitative Loads along main pipeline and the positive opposite side of reaming die body Cinclides.Improve operation convenience, reaming die body falls in the front end of the second formed punch due to being self-possessed to realize positioning, be not necessarily to manually into Row positioning, reduces labor intensity, improves processing efficiency.
Further, in the step B, first formed punch is driven by driving mechanism and is moved along the axial direction of main pipeline It is dynamic.Without human intervention, it can be achieved that full-automatic mechanical is processed, driving mechanism, which can apply sufficiently large active force to the first formed punch, to be made It obtains reaming die body and reaming-forming reliably is carried out to areole, reduce labor intensity, it is time saving and energy saving, improve processing efficiency.
Further, in the step B, first be also provided on the opposite side outer wall for being resisted against the areole of main pipeline is limited Position part, first locating part and areole are in the same axial positions of main pipeline, avoid main pipeline in reaming-forming It deforms in the process, ensures the structural stability of main pipeline, improve the quality of main pipeline processing.
Further, in the step B, be also provided on the outer wall for the areole side for being resisted against main pipeline Two locating parts, second locating part and areole are in the same axial positions of main pipeline, and second limit It has opened up on the part of position along the channel of main pipeline radial direction being connected to areole and pass through for reaming die body.With the support of the second locating part Supervisor's pipeline outer wall on areole periphery avoids supervisor's pipeline outer wall on areole periphery from deforming under the action of reaming die body, Processing quality is improved, ensures main pipeline structural stability after processing is completed.
Further, the section in the channel is rounded, and the internal diameter in channel and required obtained flanging bore outer diameter phase Together, limit constraint is carried out with periphery of the channel to the flanging bore of reaming-forming, improves the flanging bore uniformity that reaming-forming obtains, It avoids generating the irregular deformation such as ellipse.
Further, the diameter of reaming die body is identical as main pipeline internal diameter, so that reaming die body registration in main pipeline, Can accurately aligned sidewalls hole, improve reaming-forming machining accuracy.
Further, all inclined inclined surface in main pipeline axial direction in the front end of both first formed punch, second formed punch, And the inclined direction of both the first formed punch, the second formed punches inclined surface of front end is on the contrary, in the first formed punch, the second formed punch along master Pipeline axially adjacent to when, the first formed punch, the second punch head inclined-plane contacted with reaming die body, the first formed punch, the second formed punch edge The movement of main pipeline axial direction is transformed into reaming die body moving along main pipeline radial direction by inclined-plane, and the first formed punch, the second formed punch can The promotion reaming die body leaned on carries out reaming-forming processing to areole.
Further, in the step C, the flanging bore is connect with extension again after first passing through finishing, and described repairs Whole includes shape shaping to flanging bore tube wall, the process for removing flash removed, cleaning.Modify flanging bore wall unevenness, different in size Situation, improve flange Pore stability, improve the flanging bore stability and leakproofness that connect with extension, raising product matter Amount.
Compared with prior art, the invention has the advantages that:
The bypass branch pipe processing method of pipeline of the present invention carries out reaming-forming, reaming using spherical reaming die body Reaming die body is good to the dilating effect power uniformity of areole in molding process, effectively avoids main pipeline in reaming-forming mistake It deforms in journey, ensures that the uniform wall thickness of flanging bore, length that reaming-forming goes out always, improve reaming-forming precision and matter Amount also needs the operation that the small end of tapered reamer is precisely aligned to aperture when eliminating using traditional tapered reamer, operates Simply, conveniently, it is high-efficient, it can be achieved that full automatic mechanical produce, reduce labor intensity, it is time saving and energy saving.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of pipe side cinclides reaming-forming Installation practice one;
Fig. 2 is the structural schematic diagram before the reaming-forming of pipe side cinclides reaming-forming Installation practice two;
Fig. 3 is the structural schematic diagram after the completion of the reaming-forming of pipe side cinclides reaming-forming Installation practice two;
Fig. 4 is the structural schematic diagram of the pipeline for being connected with bypass branch pipe after processing is completed.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
The bypass branch pipe processing method of a kind of pipeline disclosed by the embodiments of the present invention, using the processing side ejected from inside Formula is not necessarily to artificial exactitude position, easy to operate simple, improves processing efficiency, to flanging bore neutral good, that guarantee reaming-forming goes out Uniform wall thickness, length always, effectively improve processing quality.
Embodiment one
A kind of bypass branch pipe processing method of pipeline, mainly includes the following steps:
A, areole a1 is formed in the predeterminated position aperture of main pipeline a tube wall;
Areole a1 can be process by modes such as cutting or punchings;
When processing areole a1 using punch pattern, the punching concave die with slot is placed in main pipeline a, punching concave die The position that areole a1 is processed needed for slot face main pipeline a, with the matched piercing punch of punching concave die in punching mechanism To punching concave die punching press, it is recessed that piercing punch enters punching after the tube wall of main pipeline a for side outside the tube wall of main pipeline a under drive Mould is processed and obtains areole a1, and then piercing punch reversely exits again and punching concave die exits inside main pipeline a;
B, reaming-forming is carried out to areole a1 and obtains flanging bore a2, be specifically to be put into spherical expansion in main pipeline a The diameter of hole die body 3, reaming die body 3 is identical as main pipeline a internal diameter, and the both ends of main pipeline a be inserted into respectively the first formed punch 1, The front end of second formed punch 2, at least one of both first formed punch 1, second formed punch 2 being inserted into main pipeline a is inclined In the inclined surface of main pipeline a axial direction, drives both the first formed punch 1, second formed punch 2 close in main pipeline a and squeeze promotion and expand Hole die body 3 is mobile to areole a1, and reaming die body 3 carries out reaming-forming to areole a1 and processes to obtain flanging bore a2;
Wherein, the second formed punch 2 is motionless from holding position after the insertion of one end of main pipeline a, and reaming die body 3 is placed in main pipeline a It is inside resisted against on the second formed punch 2 and makes 3 face areole a1 of reaming die body, then the first formed punch 1 is from the another of main pipeline a End insertion is simultaneously close to the second formed punch 2, and the first formed punch 1, the second formed punch 2 synergistic effect squeeze and push reaming die body 3 to areole A1 is mobile to which areole a1 reaming-forming is obtained flanging bore a2;
Also, the first formed punch 1 is driven the axial movement along main pipeline a by driving mechanism, and the driving mechanism can be with Using hydraulic cylinder, cylinder, screw pair etc., enough power can be applied to the first formed punch 1 and make reaming die body 3 by areole a1 Expanding and shaping reduces labor intensity without human intervention;
C, extension b is connected on flanging bore a2 constitutes bypass branch pipe;
Wherein, the flanging bore a2 is connect with extension b again after first passing through finishing, and the finishing includes to flanging bore The shape shaping of a2 tube wall, the process for removing flash removed, cleaning ensure that flanging bore a2 and extension b is more firm, closely connect It connects, junction is avoided to be in the presence of leaking, flanging bore a2 is then passed through into the side such as welding, Nian Jie, card pressure connection with extension b Formula is attached.
The pipeline handled by the bypass branch pipe processing method of above-mentioned pipeline is as shown in figure 4, on the side wall of main pipeline a Bypass branch pipe is formed to constitute a tee tube, also can be processed four-way pipe etc. according to above-mentioned method.
Embodiment two
A kind of bypass branch pipe processing method of pipeline, mainly includes the following steps:
A, areole a1 is formed in the predeterminated position aperture of main pipeline a tube wall;
Areole a1 can be process by modes such as cutting or punchings;
When processing areole a1 using punch pattern, the punching concave die with slot is placed in main pipeline a, punching concave die The position that areole a1 is processed needed for slot face main pipeline a, with the matched piercing punch of punching concave die in punching mechanism To punching concave die punching press, it is recessed that piercing punch enters punching after the tube wall of main pipeline a for side outside the tube wall of main pipeline a under drive Mould is processed and obtains areole a1, and then piercing punch reversely exits again and punching concave die exits inside main pipeline a;
B, reaming-forming is carried out to areole a1 and obtains flanging bore a2, be specifically, spherical expansion is built into main pipeline a The diameter of hole die body 3, reaming die body 3 is identical as main pipeline a internal diameter, and the both ends of main pipeline a be inserted into respectively the first formed punch 1, The front end of second formed punch 2, at least one of both first formed punch 1, second formed punch 2 being inserted into main pipeline a is inclined In the inclined surface of main pipeline a axial direction, drives both the first formed punch 1, second formed punch 2 close in main pipeline a and squeeze promotion and expand Hole die body 3 is moved along main pipeline a radially towards areole a1, and reaming die body 3 carries out reaming-forming to areole a1 and processes to obtain Flanging bore a2;
Wherein, the second formed punch 2 is fixed on pedestal 4, the second formed punch 2 for being inserted into the front end of main pipeline a upward, One end of main pipeline a is sleeved on from top to bottom on the second formed punch 2, is then put into reaming die body 3 from the other end of main pipeline a, Reaming die body 3 is fallen on the second formed punch 2 under Gravitative Loads along main pipeline a and 3 face areole a1 of reaming die body, then First formed punch 1 is from the insertion of the other end of main pipeline a and close to the second formed punch 2, and the first formed punch 1, the second formed punch 2 synergistic effect are squeezed Pressure pushes reaming die body 3 mobile to which areole a1 reaming-forming is obtained flanging bore a2 to areole a1;
Also, the first formed punch 1 is driven the axial movement along main pipeline a by driving mechanism, and the driving mechanism can be with Using hydraulic cylinder, cylinder, screw pair etc., enough power can be applied to the first formed punch 1 and make reaming die body 3 by areole a1 Expanding and shaping reduces labor intensity without human intervention;
Before the first formed punch 1 starts movement, first be arranged against on the opposite side outer wall of the areole a1 of main pipeline a is limited Position part 5, the first locating part 5 and areole a1 are in the same axial positions of main pipeline a, the first locating part 5 and side Cinclides a1 is located at the diametric two sides main pipeline a, and main pipeline is avoided to deform during reaming-forming, improves main pipeline The quality of processing;And before the first formed punch 1 starts movement, it is also provided with the areole a1 side for being resisted against main pipeline a Outer wall on the second locating part 6, the described second locating part 6 and areole a1 is in the same axial positions of main pipeline a, And it is opened up on second locating part 6 and has been connected to areole a1 and passes through for reaming die body 3 along main pipeline a is radial The section in channel 61, channel 61 is rounded, and the internal diameter in channel 61 is identical as required obtained flanging bore a2 outer diameter, the first punching Reaming die body 3 is squeezed out main pipeline a from areole a1 by the first 1, second formed punch 2, and reaming die body 3 enters in channel 61, reaming at The periphery for the flanging bore that type goes out is resisted against on 61 inner wall of channel;
C, extension b is connected on flanging bore a2 constitutes bypass branch pipe;
Wherein, the flanging bore a2 is connect with extension b again after first passing through finishing, and the finishing includes to flanging bore The shape shaping of a2 tube wall, the process for removing flash removed, cleaning ensure that flanging bore a2 and extension b is more firm, closely connect It connects, junction is avoided to be in the presence of leaking, flanging bore a2 is then passed through into the side such as welding, Nian Jie, card pressure connection with extension b Formula is attached.
As shown in Figure 1, realizing a kind of pipe side cinclides reaming-forming dress of the bypass branch pipe processing method of above-mentioned pipeline Set, the main reaming die body 3 including the first formed punch 1, the second formed punch 2 and spherical shape, the diameter of spherical reaming die body 3 with it is to be processed Main pipeline a internal diameter it is identical, reaming die body 3 is the high sphere of structural strengths such as steel ball, and the first formed punch 1, the second formed punch 2 are whole to be in Along the strip of main pipeline a axial direction, the front end in both the first formed punch 1, second formed punch 2 insertion main pipeline a is all inclined in master The inclined surface of pipeline a axial direction, and the inclined direction of both the first formed punch 1, second formed punch 2 inclined surface of front end is on the contrary, first The front end inclined surface of both formed punch 1, the second formed punch 2 and the angle of main pipeline a axial direction are 40~45 °, the punching of the first formed punch 1, second First 2 are inserted into from the both ends of main pipeline a respectively, and the tip of the front end inclined surface of the first formed punch 1 is arc-shaped, the arc of the first formed punch 1 The tip of the front end inclined surface of the second formed punch 2 is played the role of avoiding in tip, avoids both the first formed punch 1, second formed punch 2 close When run-off the straight face tip collision situation, reaming die body 3 be placed in main pipeline a in and be located at the first formed punch 1, the second formed punch Between 2, it is located at the punching of the first formed punch 1, second to the areole a1 of the main pipeline a of reaming-forming on the axial direction of main pipeline a Between first 2, the first formed punch 1, the second formed punch 2 are in main pipeline a along main pipeline a axially adjacent to the punching of the first formed punch 1, second First 2 front end inclined surface is contacted with reaming die body 3, and the first formed punch 1, the second formed punch 2 push reaming die body 3 along the diameter of main pipeline To mobile towards the areole a1 opened up on main pipeline a side wall, reaming die body is squeezed out from areole and is led by the first formed punch, the second formed punch Pipeline processes the reaming-forming of areole a1 to realize.
In originally implementing, the second formed punch 2 is dismountable by bolt and along being vertically fixed on pedestal 4, is responsible for One end of road a is sleeved on from top to bottom on the second formed punch 2, the setting of the lower part of the second formed punch 2 for the end main pipeline a against limit Position portion 21, meanwhile, the first formed punch 1, the second formed punch 2 it is whole in the matched strip of main pipeline a internal diameter, thus in main pipeline a It may make main pipeline a effectively to be fixed and be accurately positioned after being sleeved on the second formed punch 2, no longer need to setting for fixed supervisor The devices such as the anchor ear of road a, structure are more simplified, and simpler, efficiency is operated, main after main pipeline a is sleeved on the second formed punch 2 Pipeline a can not arbitrarily moved in the radial direction, and the limiting section 21 of the second formed punch 2 also realizes the axial direction of main pipeline a It being accurately positioned, spherical reaming die body 3 is entered from the upper ends of main pipeline a, reaming die body 3 falls in the end of the second formed punch 2, and And reaming die body 3 is consistent with the height of areole a1 that preparatory punching on main pipeline a goes out at this time, the first formed punch 1 is by driving mechanism It drives from the top of main pipeline a and is inserted into, hydraulic cylinder, cylinder, screw body etc., the front end of the first formed punch 1 can be used in driving mechanism Inclined-plane is contacted with reaming die body 3, and the first formed punch 1 continues on the axial movement of main pipeline a, passes through the first formed punch 1 and the second punching The effect reaming die body 3 on first 2 front end inclined-plane is pushed along main pipeline radially towards the areole opened up on main pipeline a side wall A1 is mobile, and reaming die body 3 is to areole a1 dilating effect power, finally in the promotion reaming mould of the first formed punch 1 and the second formed punch 2 Body 3 squeezes out main pipeline a from areole a1, to realize the reaming-forming processing to areole a1.
In order to avoid deforming occur in main pipeline a in reaming-forming process, pipe side cinclides reaming-forming Device is also provided with the first locating part 5 on the opposite side outer wall for being resisted against the areole a1 of main pipeline a, i.e. 5 He of the first locating part Areole a1 is in the same axial positions of main pipeline a, and the first locating part 5 and areole a1 are located at main pipeline a diameter The two sides in direction, the first locating part 5 pass through stand device on pedestal 4, and the first locating part 5 is along main pipeline a axial direction Position is adjustable, so as to adapt to different location areole a1 process requirements.
For above-mentioned pipe side cinclides reaming-forming device when carrying out reaming-forming processing, reaming die body 3 is directly placed into master It is easy to process quick, high-efficient without adjusting direction, the position of reaming die body 3 in pipeline a, it is time saving and energy saving, it is at low cost It is honest and clean, good processing stability.
As shown in Figures 2 and 3, the difference from embodiment 1 is that pipe side cinclides reaming-forming devices for embodiment two It further include the second locating part 6 on the outer wall for the areole a1 side for being resisted against main pipeline a, the second locating part 6 passes through branch Frame connects on the base, and the second locating part 6 and areole a1 are in the same axial positions of main pipeline a, and the second locating part 6 is just To having been opened up on areole a1 and the second locating part 6 along the channel 61 of main pipeline a radial direction being connected to areole a1, channel 61 Pass through for the reaming die body 3 squeezed out from areole a1, the section in channel 61 is rounded, and the internal diameter in channel 61 is obtained with required Flanging bore outer diameter it is identical, the first formed punch 1, the second formed punch 2 by reaming die body 3 from areole a1 squeeze out main pipeline a, reaming die body 3 enter in channel 61, and the periphery for the flanging bore that reaming-forming goes out is resisted against on 61 inner wall of channel, effectively improve reaming-forming and go out Flanging bore quality, avoid flanging bore from generating deformation, deformation occurs for the main pipeline a side wall for also avoiding around flanging bore, thus Stability and compactness that flanging bore is connect with bypass branch pipe can be improved, avoids junction from leaking, ensures the circle of main pipeline a Degree, improves the aesthetic appearance of main pipeline.
The above is only the preferred embodiment of the present invention, it is noted that above-mentioned preferred embodiment is not construed as pair Limitation of the invention, protection scope of the present invention should be defined by the scope defined by the claims..For the art For those of ordinary skill, without departing from the spirit and scope of the present invention, several improvements and modifications can also be made, these change It also should be regarded as protection scope of the present invention into retouching.

Claims (10)

1. a kind of bypass branch pipe processing method of pipeline, which comprises the steps of:
A, areole (a1) is formed in the predeterminated position aperture of main pipeline (a) tube wall;
B, it is built into spherical reaming die body (3) in main pipeline (a), and is inserted into the first formed punch respectively at the both ends of main pipeline (a) (1), the insertion main pipeline (a) of the second formed punch (2), at least one of both first formed punch (1), second formed punch (2) is interior The inclined inclined surface in main pipeline (a) axial direction in front end, driving the first formed punch (1), both the second formed punches (2) are in main pipeline (a) close and squeeze and push reaming die body (3) mobile to areole (a1) in, reaming die body (3) expands areole (a1) Hole forming is processed to obtain flanging bore (a2);
C, extension (b) is connected on flanging bore (a2) constitutes bypass branch pipe.
2. the bypass branch pipe processing method of pipeline according to claim 1, which is characterized in that in the step B, second Holding position is motionless after formed punch (2) is inserted into from one end of main pipeline (a), and the is resisted against in reaming die body (3) merging main pipeline (a) On two formed punches (2) and make reaming die body (3) face areole (a1), then the first formed punch (1) is from the another of main pipeline (a) End insertion is simultaneously close to the second formed punch (2), and the first formed punch (1), the second formed punch (2) synergistic effect squeeze and push reaming die body (3) It is mobile to which areole (a1) reaming-forming is obtained flanging bore (a2) to areole (a1).
3. the bypass branch pipe processing method of pipeline according to claim 2, which is characterized in that described in the step B The second formed punch (2) be fixed on pedestal (4), the second formed punch (2) for being inserted into the front end of main pipeline (a) upward, will One end of main pipeline (a) is sleeved on from top to bottom on the second formed punch (2), is then put into reaming mould from the other end of main pipeline (a) Body (3), reaming die body (3) fallen on the second formed punch (2) under Gravitative Loads along main pipeline (a) and reaming die body (3) just To areole (a1).
4. the bypass branch pipe processing method of pipeline according to claim 2, which is characterized in that described in the step B The first formed punch (1) by driving mechanism drive along main pipeline (a) axial movement.
5. the bypass branch pipe processing method of pipeline according to claim 1, which is characterized in that in the step B, also set The first locating part (5) being resisted against on the opposite side outer wall of the areole (a1) of main pipeline (a), first locating part are set (5) the same axial positions of main pipeline (a) are in areole (a1).
6. the bypass branch pipe processing method of pipeline according to claim 1, which is characterized in that in the step B, also set The second locating part (6) on the outer wall of areole (a1) side for being resisted against main pipeline (a), second limit are set Part (6) and areole (a1) are in the same axial positions of main pipeline (a), and open up on second locating part (6) Along the channel (61) of main pipeline (a) radial direction being connected to areole (a1) and pass through for reaming die body (3).
7. the bypass branch pipe processing method of pipeline according to claim 6, which is characterized in that the channel (61) is cut Face is rounded, and the internal diameter of channel (61) is identical as required obtained flanging bore (a2) outer diameter.
8. the bypass branch pipe processing method of pipeline according to claim 1, which is characterized in that the diameter of reaming die body (3) It is identical as main pipeline (a) internal diameter.
9. the bypass branch pipe processing method of pipeline according to claim 1, which is characterized in that first formed punch (1), The all inclined inclined surface in main pipeline (a) axial direction in front end of both second formed punches (2), and the first formed punch (1), the second formed punch (2) inclined direction of the inclined surface of the two front end is opposite.
10. the bypass branch pipe processing method of pipeline according to claim 1, which is characterized in that in the step C, institute The flanging bore (a2) stated is connect with extension (b) again after first passing through finishing, and the finishing includes to flanging bore (a2) tube wall Shape shaping, the process for removing flash removed, cleaning.
CN201910131892.1A 2019-02-22 2019-02-22 A kind of bypass branch pipe processing method of pipeline Pending CN109877183A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110814135A (en) * 2019-12-09 2020-02-21 安徽中巨智能科技有限公司 Pipe side opening drawing device

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Publication number Priority date Publication date Assignee Title
CN110814135A (en) * 2019-12-09 2020-02-21 安徽中巨智能科技有限公司 Pipe side opening drawing device
CN110814135B (en) * 2019-12-09 2021-04-09 安徽中巨智能科技有限公司 Pipe side opening drawing device

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