CN208349634U

CN208349634U - A kind of branch pipe and the stamping die for processing the branch pipe

Info

Publication number: CN208349634U
Application number: CN201820598508.XU
Authority: CN
Inventors: 何军涛
Original assignee: Zhuji Vertical And Horizontal Cold And Warm Accessories Co Ltd
Current assignee: Zhuji Vertical And Horizontal Cold And Warm Accessories Co Ltd
Priority date: 2018-04-25
Filing date: 2018-04-25
Publication date: 2019-01-08
Anticipated expiration: 2028-04-25

Abstract

A kind of stamping die the utility model discloses branch pipe and for processing the branch pipe, it is related to air conditioner parts, for solving the problems, such as that common branch pipe is easily broken because pad quantity is more, branch pipe includes tap and Duo Gen branched pipe, the tap includes the output head section for being integrally formed and being interconnected by stamping die and input pipeline section, input port is formed on the input pipeline section, multiple delivery outlets are formed on the described one end of output head section far from input pipeline section, the more branched pipes are arranged in respectively in multiple delivery outlets, and it is fixed between branched pipe and output head section by welding；The utility model has the following advantages that and effect: after tap rolls into one the function of header and disagreement connector, the quantity of pad on branch pipe can be reduced, improve the structural strength of branch pipe, so that branch pipe is not allowed to be also easy to produce rupture during use, so that refrigerating fluid be made to be less likely to occur to leak.

Description

A kind of branch pipe and the stamping die for processing the branch pipe

Technical field

The utility model relates to air conditioner parts, in particular to a kind of branch pipe and the stamping die for processing the branch pipe Tool.

Background technique

Branch pipe or central air-conditioning branch pipe, one is input pipe, and other end is equipped with a plurality of efferent duct, is used primarily in In the Pipe installing of central air-conditioning VRV system, effect is in central air-conditioning multi-connected machine installation system, by the refrigeration in pipeline Liquid is diverted in indoor unit, plays the role of shunting.

Currently, Authorization Notice No. is CN203908127U, the Chinese utility model that authorized announcement date is 2014.10.29 is public A kind of air-conditioning branch pipe, including pipe fitting ontology have been opened, disagreement connector, disagreement connector lower end difference are equipped among the ontology Two bypass ducts are connected to, a bypass duct is in bending, and another bypass duct is uprightly perpendicular to horizontal plane, disagreement connector inner cavity It is communicated with bypass duct, filtering body is equipped in the curved end of bending straight tube.

Air-conditioning branch pipe as described above, according to the record of specification and attached drawing, mainly by pipe fitting ontology (one in industry As claim header), disagreement connector and two bypass ducts formed by welding, and refrigeration equipment is in order to enable refrigerating fluid to have recycled Come, it will usually pressurize to refrigerating fluid, coolant flow is driven with high pressure；But found during actual use, Since the welding position quantity of this branch pipe is more, when refrigerating fluid flows through branch pipe, these welding positions are for a long time by hydraulic Effect is easy to produce rupture, and refrigerating fluid is caused to leak.

Utility model content

First purpose of the utility model is to provide a kind of branch pipe, by the function set of header and disagreement connector to one It rises, reduces the quantity of pad on branch pipe, improve the intensity of branch pipe, branch pipe is made to be not easy to generate during use Rupture, so that refrigerating fluid be made to be less likely to occur to leak.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of branch pipe, including Tap and Duo Gen branched pipe, the tap include the output head section for being integrally formed and being interconnected by stamping die With input pipeline section, it is formed with input port on the input pipeline section, the output head section on the one end for inputting pipeline section far from being formed with Multiple delivery outlets, the more branched pipes are arranged in respectively in multiple delivery outlets, and are led between branched pipe and output head section Welding is crossed to be fixed.

By using above scheme, the input pipeline section of tap is for the refrigerating fluid delivery pipe with outdoor unit when in use Road is connected, and the refrigerating fluid that outdoor unit conveying comes is conveyed to multiple indoor units by branched pipe, tap is equivalent at this time The function of header and disagreement connector；Compared with existing branch pipe, this branch pipe is only between tap and branched pipe Just there is pad in connected position, and existing branch pipe is between pipe fitting ontology and disagreement connector, disagreement connector and branch There is pad between pipe, the pad quantity on existing branch pipe is significantly more than the points of the welding on the present embodiment branch pipe Amount, therefore branch pipe involved in the present embodiment can be better than existing branch pipe in structural strength, so that this branch pipe exists Do not allow to be also easy to produce rupture during use, so that refrigerating fluid be made to be less likely to occur to leak.

The utility model is further arranged to: described fixed by being stamped and formed out positioning convex point in the output head section Inner cavity side protrusion of the position salient point towards output head section.

By using above scheme, positioning convex point can facilitate control during branched pipe and output head section are attached Depth in branched pipe insertion output head section processed, so that head section is exported during being welded with branched pipe, when fusing When copper bar flows into the gap between output head section and branched pipe, it is not easy to occur not being completely filled with because branched pipe insertion is too deep The case where gap just solidifies, so that the connection between output head section and branched pipe is stronger.

The utility model is further arranged to: by being stamped and formed out on the one end of the branched pipe far from output head section Positioning region, by squeezing the plug division being formed with for being embedded in refrigerating fluid circulating line, and the positioning on the positioning region The diameter in portion is greater than the diameter of plug division.

By using above scheme, plug division is used to be inserted into the refrigerating fluid circulating line of indoor unit when in use, and It is fixed in the refrigerating fluid circulating line of plug division insertion indoor unit since the diameter of positioning region is greater than the diameter of plug division Position portion can be inconsistent with the refrigerating fluid circulating line of indoor unit, and branched pipe is prevented to continue deeper into refrigerating fluid circulating line, so that Branched pipe with refrigerating fluid circulating line during being welded, when the copper bar of fusing flows into branched pipe and refrigerating fluid circulation pipe When gap between road, it is not easy to occur not being completely filled with branched pipe with refrigerating fluid circulating line just because branched pipe insertion is too deep The case where solidification, makes can sufficiently weld between branched pipe and refrigerating fluid circulating line, improves branch pipe and system to reach The purpose of bonding strength between cold liquid circulating line.

Second purpose of the utility model be to provide it is a kind of for processing the stamping die of branch pipe, can be in tap Output head section and input pipeline section are formed on blank, and tap is made to be provided simultaneously with the function of header and disagreement connector, reduction point The quantity of pad on manifold, improves the structural strength of branch pipe, so that branch pipe be made to be not easy to occur during use Rupture.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of for processing disagreement The stamping die of pipe, including pedestal, core block, the left mould group for being slidably connected on pedestal and being located at core block two sides and the right side Mould group, the positioning column for being arranged for tap blank is fixed on the pedestal, and length and the shunting of the positioning column connect The equal length of the input pipeline section of head；The left mould group includes the left die holder being slidably connected on pedestal, is fixed on left die holder Left forming blocks, the left forming blocks offered on the side wall of right mould group side shape and export head section outer shape phase Same left forming tank；The right forming blocks that the right mould group includes the right mould seat being slidably connected on pedestal, is fixed on right mould seat, The right side that shape is identical as the outer shape of head section is exported and is used to cooperate with the formation of left forming tank is offered in the right forming blocks After forming tank, the left mould group and right mould group are closed up, the left forming tank and right forming tank surround and form shape and output head section The identical punching press chamber of outer shape.

Tap blank is set on positioning column first, so by using above scheme when processing tap Core block is driven to be inserted into the output head section of tap blank first by driving parts such as driving cylinders afterwards；Then it drives again Draw close left mould group and right mould group mutually, since the right forming tank in the left forming tank and right forming blocks in left forming blocks is mutually closed It will form shape punching press chamber identical with the output outer shape of head section after holding together, therefore mutually drawn close in left mould group and right mould group In the process, left forming blocks and right forming blocks can generate extruding to tap blank, make the middle part of the output head section of tap Contraction is generated, after being squeezed, will form at least two delivery outlets in the output head section of tap, tap has at this time There is the function of header and disagreement connector, then branched pipe is inserted in delivery outlet again, tap and branched pipe are carried out Welding can form branch pipe, the quantity that can reduce pad on branch pipe be done so, so that the structural strength of branch pipe is more Height, so that branch pipe be made to be less likely to occur to rupture during use.

The utility model is further arranged to: further including being set on left die holder and right mould seat and connecing for limiting shunting Capillus base generates the limit assembly of offset, and the limit assembly includes telescopically being installed on left die holder by driving assembly Left limit block and the same driving assembly that passes through telescopically are installed on the right limit block on right mould seat, the left limit block and right limit The distance between position block is less than the distance between left forming blocks and right forming blocks, and left limit block and right limit block close to each other one Shape limiting slot identical with the input outer shape of pipeline section is offered on the surface of side, the left mould group and right mould group are mutual It is identical with the outer shape of tap that shape is formed when closing up, between left forming tank, right forming tank and two limiting slots Forming cavity.

By using above scheme, the general cylindrical structure of tap blank, left forming blocks and right forming blocks exist During squeezing tap blank, may result in tap blank generate deflection so that tap at After type, multiple delivery outlets is not of uniform size in output head section, and after limit assembly is set, due to left limit block and right limit The distance between position block is less than the distance between left forming blocks and right forming blocks, therefore mutually close up in left mould group and right mould group In the process, left limit block and right limit block can be contacted with the generation of tap blank first, and limitation tap generates offset, makes Left forming blocks and right forming blocks are obtained during squeezing tap blank, tap blank is not allowed to be also easy to produce partially It moves, after forming the output head section on tap, the size of multiple delivery outlets is able to maintain unanimously, to facilitate branched pipe Installation.

The utility model is further arranged to: the driving component includes that one end is fixed on left limit block and the other end The left connecting rod that is arranged on left die holder, the left elastic component being sheathed in left connecting rod, one end are fixed on right limit block and another Right connecting rod that one end is arranged on right mould seat, the right elastic component being sheathed in right connecting rod, the left connecting rod pass through left mould It is threaded with left limit nut on one end of seat, and the both ends of the left elastic component are pushed against left limit block and left die holder respectively On, the right connecting rod is threaded with right limit nut, and the both ends of the right elastic component point on one end of right mould seat It is not pushed against on right limit block and right mould seat.

By using above scheme, since left limit block is telescopically installed in left forming blocks by left connecting rod, and Right limit block is mutually supported by being telescopically installed in right forming blocks in right connecting rod in left limit block and right limit block After touching and clamping tap blank under the resilient force of left elastic component and right elastic component, left die holder and right mould seat can also Continue close to each other, the right forming blocks in left forming blocks and right mould seat on left die holder is mutually drawn close, and mutual Extruding is generated to tap blank during drawing close, so that tap be enable to form.

The utility model is further arranged to: the left die holder offers left dovetail on the surface of right mould seat side Slot, the left forming blocks are fixed with the left dovetails for being embedded in left dovetail groove, the left swallow on one end of left die holder Tail block is embedded in left dovetail groove and is fixed by screw and left die holder.

By using above scheme, the cooperation of left dovetails and left dovetail groove can be limited between left forming blocks and left die holder It produces relative rotation, and screw can limit and generate relative displacement between left forming blocks and left die holder, after being arranged in this way, Neng Gouzeng Add the firmness connected between left forming blocks and left die holder so that left forming blocks to tap blank generate extruding when, no It is easy to produce shaking, to achieve the purpose that improve tap formed precision.

The utility model is further arranged to: the right mould seats against and offers right dovetail on the closely surface of left die holder side Slot, the right forming blocks are fixed with the right dovetails for being embedded in right dovetail groove, the right swallow on one end of right mould seat Tail block is embedded in right dovetail groove and is fixed by screw and right mould seat.

By using above scheme, as the purpose of left forming blocks, right forming blocks and the right side can be increased after being arranged in this way The firmness connected between die holder, when so that right forming blocks and the formation cooperation of left forming blocks squeezing tap blank, Do not allow to be also easy to produce shaking, to achieve the purpose that further increase tap formed precision.

In conclusion the utility model has the following beneficial effects:

1. after tap rolls into one the function of header and disagreement connector, pad on branch pipe can be reduced Quantity improves the structural strength of branch pipe, so that branch pipe is not allowed to be also easy to produce rupture during use, to make refrigerating fluid It is less likely to occur to leak；

2. the plug division on branched pipe can be used in being docked with the refrigerating fluid circulating line of indoor unit, and positioning region energy The enough length in branched pipe insertion refrigerating fluid circulating line controls, enable the copper of fusing be uniformly filled in plug division and The weld strength between branched pipe and refrigerating fluid circulating line is improved, to make to freeze in gap between refrigerating fluid circulating line Liquid circulating line is less likely to occur to rupture during use；

3. punching press grinding tool can stamp out output head section and input pipeline section on tap blank, make tap simultaneously Have the function of header and disagreement connector, reduces the quantity of pad on branch pipe, improve the structural strength of branch pipe, thus Branch pipe is set to be not easy to rupture during use.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of embodiment one；

Fig. 2 is the structural schematic diagram of embodiment two, for embodying the structure of left mould group；

Fig. 3 is the structural schematic diagram of embodiment two, for embodying the structure of right mould group.

In figure: 1, tap；11, head section is exported；12, pipeline section is inputted；13, delivery outlet；14, input port；15, convex Point；2, branched pipe；21, positioning region；22, plug division；3, pedestal；31, sliding rail；32, positioning column；4, core block；41, core plate；42, Plug；5, left mould group；51, left die holder；511, left dovetail groove；52, left forming blocks；521, left dovetails；522, left forming tank；6, Right mould group；61, right mould seat；611, right dovetail groove；62, right forming blocks；621, right dovetails；622, right forming tank；7, sliding slot；8, Punching press chamber；9, limit assembly；91, left limit block；92, right limit block；93, limiting slot；10, driving assembly；101, left connecting rod； 102, left elastic component；103, right connecting rod；104, right elastic component；105, left limit nut；106, right limit nut；20, it forms Chamber；30, tap blank.

Specific embodiment

The utility model is described in further detail below in conjunction with attached drawing.

Embodiment one:

As shown in Figure 1, a kind of branch pipe, including tap 1 and branched pipe 2, tap 1 include output 11 He of head section Pipeline section 12 is inputted, input pipeline section 12 is cylindrical, inputs on pipeline section 12 and is formed with input port 14, inputs 12 shape of pipeline section when in use At there is one end of input port 14 to be connected with the refrigerating fluid circulating line of outdoor unit, the refrigerating fluid that outdoor unit conveying comes is passed through defeated Head section 11 is conveyed to multiple indoor units out；And it exports in head section 11 through stamping die integrally formed at least two delivery outlets 13；Positioning convex point 15 is also formed with by punching press in output head section 11, and positioning convex point 15 is towards the inner cavity one for exporting head section 11 Side protrusion.

Branched pipe 2 is at least provided with two, wherein one is in straight tube-like, in addition one by being bent to form " Z " shape Structure, two branched pipes 2 are inserted in respectively in two delivery outlets 13；Branched pipe 2 is inserted into bottom during installation, make branched pipe 2 with Positioning convex point 15 offsets, then copper arc welding electrode fusing is blown into branched pipe 2 by spray welding gun and is exported in the gap between head section 11, Branched pipe 2 and output head section 11 are welded and fixed.

Positioning region 21, positioning region 21 are also formed with by punching press on the one end of two branched pipes 2 far from output head section 11 Diameter be greater than branched pipe 2 diameter；It after positioning region 21 forms, is squeezed to forming part, makes forming part far from output One end of head section 11 forms the plug division 22 for being inserted into the refrigerating fluid circulating line of indoor unit, and the diameter of plug division 22 is less than The diameter of positioning region 21, in this way when plug division 22 is docked with refrigerating fluid circulating line, positioning region 21, which can contradict, is freezing On the end face of liquid circulating line, the inserting depth of branched pipe 2 is positioned, so that the copper of fusing can uniformly fill when welding Gap between full marks branch pipe 2 and refrigerating fluid circulating line, so that welding structure is stronger.

Specific implementation process: the molding tap 1 of integrated punching is provided simultaneously with the function of header and disagreement connector, makes After tap 1 and branched pipe 2 be connected to form branch pipe, the pad quantity on this branch pipe is common compared to three-stage For branch pipe, the quantity of pad is less, therefore its overall structural strength is higher, therefore is not easy during use Rupture is generated, so that refrigerating fluid be made to be less likely to occur to leak.

Embodiment two:

As shown in Fig. 2, a kind of for processing the stamping die of branch pipe, including pedestal 3, core block 4, left mould group 5, right mould Group 6, pedestal 3 are in square, are fixed with two sliding rails 31 in the upper surface of pedestal 3, on the base 3 and be located at two sliding rails 31 it Between position be further fixed on the positioning column 32 for being arranged for tap blank 30, the length and tap 1 of positioning column 32 The equal length of upper input pipeline section 12；Core block 4 include core plate 41 and two plugs 42, core plate 41 be located at positioning column 32 just on Side；Two plugs 42 are fixed on the surface on core plate 41 and close to 32 side of positioning column, when processing tap 1, two Core plate 41 forms tap blank 30 and supports for being inserted into tap blank 30, squeezes left mould group 5 and right mould group 6 When pressing tap blank 30, tap blank 30 is unlikely to be crowded flat.

Left mould group 5 includes left die holder 51, left forming blocks 52, and left die holder 51 is in square, on the surface of left 51 side of die holder On open up there are two the sliding slot 7 for forming cooperation with the sliding rail 31 on pedestal 3, left die holder 51 passes through sliding slot 7 and sliding rail 31 Cooperation is slidably connected on pedestal 3；A left side is offered on the left one end of die holder 51 far from pedestal 3 and close to the side of positioning column 32 Dovetail groove 511；Left forming blocks 52 are in square, are fixed on the surface of left 52 side of forming blocks for being embedded in dovetail groove Left dovetails 521, left dovetails 521 are embedded in left dovetail groove 511, and left dovetails 521 by screw and left die holder 51 into Row is fixed；It is also provided with shape on surface of the left forming blocks 52 back to left 521 side of dovetails and exports a left side half for head section 11 The identical left forming tank 522 of side shape.

As shown in Figures 2 and 3, right mould group 6 includes right mould seat 61, right forming blocks 62, and right mould seat 61 is in square, in right mould It is also opened up on the surface of 61 sides of seat there are two the sliding slot 7 for forming cooperation with the sliding rail 31 on pedestal 3, right mould seat 61 is logical The cooperation for crossing sliding slot 7 and sliding rail 31 is slidably connected on pedestal 3, and left die holder 51 and right mould seat 61 are located at positioning column 32 Two sides；Right dovetail groove 611 is also provided on the one end of right mould seat 61 far from pedestal 3 and close to the side of positioning column 32；It is right at Type block 62 is in square, and the right dovetails 621 for being embedded in dovetail groove are fixed on the surface of right 62 side of forming blocks, right Dovetails 621 are embedded in right dovetail groove 611, and right dovetails 621 are fixed by screw with right mould seat 61；In right molding Block 62 back to be also provided on the surface of right 621 side of dovetails shape it is identical with the right half of shape of head section 11 is exported it is right at Type groove 622 forms shape between left forming tank 522 and right forming tank 622 when left forming blocks 52 are mutually closed up with right forming blocks 62 The identical punching press chamber 8 of shape of shape and output head section 11.

It is additionally provided on left die holder 51 and right mould group 6 and is generated partially in punching course for limiting tap blank 30 The limit assembly 9 of shifting, limit assembly 9 include left limit block 91 and right limit block 92, and left limit block 91 and right limit block 92 are distinguished It is installed on left die holder 51 and right mould seat 61 by the way that driving assembly 10 is telescopic.

Driving assembly 10 includes left connecting rod 101, left elastic component 102, right connecting rod 103, right elastic component 104, left connection One end of bar 101 is fixed in left forming blocks 52, and the other end is arranged on left die holder 51, and passes through left mould in left connecting rod 101 Left limit nut 105 is threaded on one end of seat 51；Left elastic component 102 is sheathed in left connecting rod 101, left elastic component 102 one end is pushed against in left forming blocks 52, and the other end is pushed against on left die holder 51；One end of right connecting rod 103 is fixed on In right forming blocks 62, the other end is arranged on right mould seat 61, and screw thread connects on one end that right connecting rod 103 passes through right mould seat 61 It is connected to right limit nut 106；Right elastic component 104 is sheathed in right connecting rod 103, one end of right elastic component 104 be pushed against it is right at On type block 62, and the other end is pushed against on right mould seat 61.

For limit assembly 9 after installing, the distance between left limit block 91 and right limit block 92 are less than left 52 He of forming blocks The distance between right forming blocks 62；It is also offered respectively on the surface of left limit block 91 and the side close to each other of right limit block 92 Shape limiting slot 93 identical with the input outer shape of pipeline section 12 of tap 1, when left forming blocks 52 and right forming blocks 62 When mutually closing up, the external shape of shape and tap 1 is formed between left forming blocks 52, right forming blocks 62 and two limiting slots 93 The identical forming cavity 20 of shape.

Tap blank 30: when processing tap 1, being sheathed on positioning column 32 by specific implementation process first, Then left mould group 5 and right mould group 6 is driven mutually to be drawn close by actuators such as external driving cylinders, and in left 5 He of mould group While right mould group 6 is mutually drawn close, external actuator drives core block 4 to be inserted into tap blank 30 simultaneously, to shunting Connector blank 30 forms support；During left mould group 5 and right mould group 6 are persistently drawn close, due to left limit block 91 and right limit The distance between block 92 is less than the distance between left forming blocks 52 and right forming blocks 62, therefore left limit block 91 and right limit block 92 It can first be contacted with the generation of tap blank 30, tap blank 30 is positioned；Then external actuator continues to drive It moves left mould group 5 and right mould group 6 is mutually drawn close, it, can be to tap hair during left mould group 5 and right mould group 6 are mutually drawn close Base 30 generates extruding, and makes to form output head section 11 on tap blank 30 under the support of core block 4, then tap 1 molding；Branched pipe 2 is inserted into the delivery outlet 13 of output head section 11 again later, is welded by branched pipe 2 and output head section 11 It connects；Such branch pipe, tap 1 are provided simultaneously with the function of disagreement connector and header, compare common three-stage Branch pipe, pad quantity thereon will obviously be lacked, therefore its structural strength can also be better than common branch pipe, to make this Branch pipe is not allowed to be also easy to produce rupture during use.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but As long as all by the protection of Patent Law in the scope of the claims of the utility model.

Claims

1. a kind of branch pipe, it is characterised in that: including tap (1) and more branched pipes (2), tap (1) packet Include the output head section (11) and input pipeline section (12) that are integrally formed and are interconnected by stamping die, the input pipeline section (12) On be formed with input port (14), it is described output head section (11) far from input pipeline section (12) one end on be formed with multiple delivery outlets (13), the more branched pipes (2) are arranged in respectively in multiple delivery outlets (13), and branched pipe (2) and output head section (11) it is fixed between by welding.

2. a kind of branch pipe according to claim 1, it is characterised in that: by being stamped and formed out on the output head section (11) Have positioning convex point (15), the positioning convex point (15) is protruded towards the inner cavity side of output head section (11).

3. a kind of branch pipe according to claim 1, it is characterised in that: the branched pipe (2) is far from output head section (11) One end on by being stamped and formed out positioning region (21), be formed with by squeezing for being embedded in refrigerating fluid on the positioning region (21) Plug division (22) in circulating line, and the diameter of the positioning region (21) is greater than the diameter of plug division (22).

4. a kind of for processing the stamping die of branch pipe, it is characterised in that: including pedestal (3), core block (4), be slidably connected In on pedestal (3) and being located at the left mould group (5) and right mould group (6) of core block (4) two sides, it is fixed on the pedestal (3) Positioning column (32) for being arranged for tap blank (30), the length of the positioning column (32) are defeated with tap (1) Enter the equal length of pipeline section (12)；The left mould group (5) includes the left die holder (51) being slidably connected on pedestal (3), is fixed on Left forming blocks (52) on left die holder (51), the left forming blocks (52) open up tangible on the side wall of right mould group (6) side Shape left forming tank (522) identical with the output outer shape of head section (11)；The right mould group (6) includes being slidably connected to pedestal (3) right mould seat (61) on, the right forming blocks (62) being fixed on right mould seat (61) open up on the right forming blocks (62) tangible Shape is identical as the output outer shape of head section (11) and for forming the right forming tank (622) cooperated, institute with left forming tank (522) State left mould group (5) and after right mould group (6) close up, the left forming tank (522) and right forming tank (622) surround formed shape with it is defeated The identical punching press chamber (8) of the outer shape of head section (11) out.

5. according to claim 4 a kind of for processing the stamping die of branch pipe, it is characterised in that: further include being set to The limit assembly (9) of offset is generated on left die holder (51) and right mould seat (61) and for limiting tap blank (30), it is described Limit assembly (9) includes that left limit block (91) on left die holder (51) and equally is telescopically installed on by driving assembly (10) The right limit block (92) on right mould seat (61), the left limit block (91) and the right side are telescopically installed on by driving assembly (10) The distance between limited block (92) be less than the distance between left forming blocks (52) and right forming blocks (62), and left limit block (91) and Shape limit identical with the input outer shape of pipeline section (12) is offered on the surface of right limit block (92) side close to each other Position slot (93), when the left mould group (5) and right mould group (6) mutually close up, left forming tank (522), right forming tank (622) and two The identical forming cavity of outer shape (20) of shape and tap (1) is formed between limiting slot (93).

6. according to claim 5 a kind of for processing the stamping die of branch pipe, it is characterised in that: the driving component It (10) include that one end is fixed on the left connecting rod (101) that on left limit block (91) and the other end is arranged on left die holder (51), is covered Left elastic component (102), one end on left connecting rod (101) are fixed on right limit block (92) and the other end is arranged in right mould Right connecting rod (103), the right elastic component (104) that is sheathed on right connecting rod (103) on seat (61), the left connecting rod (101) it is threaded with left limit nut (105) on the one end of left die holder (51), and the two of the left elastic component (102) End is pushed against respectively on left limit block (91) and left die holder (51), and the right connecting rod (103) passes through the one end of right mould seat (61) On be threaded with right limit nut (106), and the both ends of the right elastic component (104) be pushed against respectively right limit block (92) and On right mould seat (61).

7. according to claim 4 a kind of for processing the stamping die of branch pipe, it is characterised in that: the left die holder (51) it is offered left dovetail groove (511) on the surface of right mould seat (61) side, the left forming blocks (52) are close to left die holder (51) the left dovetails (521) for being embedded in left dovetail groove (511) are fixed on one end, the left dovetails (521) are embedding It is fixed in left dovetail groove (511) and by screw with left die holder (51).

8. according to claim 4 a kind of for processing the stamping die of branch pipe, it is characterised in that: the right mould seat (61) it is offered right dovetail groove (611) on the surface of left die holder (51) side, the right forming blocks (62) are close to right mould seat (61) the right dovetails (621) for being embedded in right dovetail groove (611) are fixed on one end, the right dovetails (621) are embedding It is fixed in right dovetail groove (611) and by screw with right mould seat (61).