CN205056771U - A flexible die set for high -pressure forming in three -way pipe - Google Patents

A flexible die set for high -pressure forming in three -way pipe Download PDF

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Publication number
CN205056771U
CN205056771U CN201520777877.1U CN201520777877U CN205056771U CN 205056771 U CN205056771 U CN 205056771U CN 201520777877 U CN201520777877 U CN 201520777877U CN 205056771 U CN205056771 U CN 205056771U
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CN
China
Prior art keywords
way pipe
die
base
drift
plate
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CN201520777877.1U
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Chinese (zh)
Inventor
徐雪峰
陈清根
林兵兵
王继
李轩颖
包文兵
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南昌航空大学
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Priority to CN201520777877.1U priority Critical patent/CN205056771U/en
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Publication of CN205056771U publication Critical patent/CN205056771U/en

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Abstract

The utility model discloses a flexible die set for high -pressure forming in three -way pipe. It be adopt with the half module parallel placement in the base, make the half module that has different radiuses and length cooperate and form the shaper of the three -way pipe person in charge die cavity that has different diameters, different length by ultimate compound die with the base through the connecting screw, the utility model discloses an among a flexible die set for high -pressure forming in three -way pipe, going up the lower plate and being connected fixedly with the upper and lower base cooperation that corresponds respectively, the base is division fluted about wherein, and upward the female die parallel placement is in the recess, mutually support with the female die and form the three -way pipe and be responsible for to be equipped with simultaneously in the upper mold section of die cavity and be responsible for the die cavity branch pipe die cavity of intercommunication each other with the three -way pipe, balanced drift links to each other with the branch pipe die cavity, drift about three -way pipe person in charge die cavity both ends are equipped with, right drift axle center is equipped with leads the oil groove. Compared with the prior art, the utility model can the realization go up the three -way pipe part that the female die made the shaping multiple pipe diameter specification of one set of die set through the change, improve production efficiency and economic interests, increase unloading pipe length through increasing the axial length who goes up the female die simultaneously, the volume of changing axial feed increases the three -way pipe that axial load is beneficial to the higher branch pipe length of acquisition indirectly.

Description

A kind of flexible die device for three-way pipe internal high pressure forming
Technical field
The utility model relates to a kind of three-way pipe internal high pressure forming mould device, especially a kind of flexible die device for three-way pipe internal high pressure forming.
Background technology
Three-way pipe internal high pressure forming technique is a kind of new plastic forming technology developed in recent years, be shaped because it achieves disposable integral, avoid the distortion because welding produces, the disappearance of weld seam also makes the quality of three-way pipe decrease simultaneously, achieve the lightweight of product, find broad application in automobile, aviation and transportation industry at present.Three-way pipe internal high pressure forming is asymmetrical space three-dimensional deformation process, forming technology is comparatively complicated, except being subject to the thrust of pressure, left and right drift in hydraulic oil generation, also have the mold clamping force, frictional force etc. of the equilibrant force of balance drift, upper mold section and female die.In the shaping of three-way pipe, a length of tube is an important references index of three-way pipe forming quality, and three-way pipe arm generally can occur thinning when being shaped, when thinning excessive time, pipe fitting excises that position is too high causes arm curtailment in final shaping excision, cannot meet the normal use of tee pipe fitting.
For reducing the thinning of arm place, existing forming technology generally passes through the optimization of the technological parameters such as internal pressure, axial feeding and coefficient of friction to improve the forming quality of three-way pipe arm, but to some special tee pipe fittings, comparatively satisfied qualified three-way pipe such as, when propping up the preparation of the longer refrigeration plant tee pipe fitting of length of tube, still cannot be obtained; In addition, existing forming technology generally all adopts one set of die device to be only shaped a kind of caliber three-way pipe, flexible poor, reduces production efficiency and economic interests.
In existing internal high pressure forming mould device, the matched moulds caliber of upper mold section and female die and axial length immobilize, and make the tee pipe fitting specification after being shaped single, die device flexibility is poor; And prepare length of tube longer three-way pipe time cannot be met by existing technique.
Summary of the invention
The utility model is to provide a kind of flexible die device for three-way pipe internal high pressure forming, the matched moulds caliber of upper mold section and female die in die device and axial length is become to immobilize to solve prior art three-way pipe inner high voltage, make the tee pipe fitting specification after being shaped single, die device flexibility is poor; And prepare length of tube longer three-way pipe time the technical problem that cannot to be met etc. by existing technique.
For solving the problems of the technologies described above, the utility model provides a kind of flexible die device for three-way pipe internal high pressure forming, comprise upper plate, upper bed-plate, upper mold section, lower shoe, lower bottom base, female die, left drift, right drift, balance drift, described upper and lower base plate is connected and fixed with corresponding upper and lower base engagement respectively; Described upper and lower base has groove, and upper and lower half module is parallel to be placed in groove; Describedly complement each other to form in upper mold section that three-way pipe is responsible for die cavity the tubular cavity being provided with simultaneously and being responsible for die cavity with three-way pipe and being interconnected with female die; Described balance drift is connected with a tubular cavity; Described three-way pipe supervisor die cavity two ends are provided with left and right drift, and right drift axle center is provided with oil guide groove.
In the utility model, described upper plate and upper bed-plate are provided with mutually through forming hole, and described forming hole is connected with balance drift; Described upper plate is separately provided with the screwed hole be connected with clamping pressure machine.
In the utility model, described upper and lower half module two ends are provided with threaded connection hole; Described upper bed-plate two ends are provided with attachment screw, and lower bottom base two ends are provided with the threaded connection hole corresponding with this attachment screw; Described upper and lower base groove two ends are also provided with the attachment screw corresponding with threaded connection hole; The post that is threaded of described attachment screw runs through upper and lower base and connects with corresponding threaded connection hole matching thread, can as required the upper and lower half module with different radii and axial length be carried out coordinating with upper and lower base by described attachment screw and formed by final matched moulds there is different-diameter, the three-way pipe of axially different length is responsible for die cavity.
The beneficial effects of the utility model are: (1), the utility model one is used for three-way pipe internal high pressure forming flexible die device, by the recess width be provided with in Up/down base in caliber determining device maximum in required three-way pipe, base groove is carried out assembling matched moulds with the upper female die with different tube diameters and forms supervisor's die cavity with different-diameter, reach one set of die device to be shaped the three-way pipe part of multiple caliber specification, reduce production cost and also improve production efficiency; (2), the axial length of upper female die and depth of groove in mating connection with it can be inconsistent, prepare some length of tube longer three-way pipe time, blanking pipe length is increased by the axial length increasing upper female die, indirect change axial feeding, increases axial load and is beneficial to the three-way pipe obtaining higher length of tube.
Accompanying drawing explanation
Fig. 1 is a kind of internal structure schematic diagram for three-way pipe internal high pressure forming flexible die device of the utility model;
Fig. 2 is the utility model die device entirety assembling schematic diagram;
Fig. 3 is the utility model lower bottom base and female die syndeton schematic diagram;
Fig. 4 is the utility model upper bed-plate and upper mold section syndeton schematic diagram;
Fig. 5 is the utility model device three-way pipe forming effect figure;
In figure, 1-upper mold section, 2-female die, 3-upper bed-plate, 4-lower bottom base, 5-upper plate, 6-lower shoe, 7-are responsible for that die cavity, 8-prop up tubular cavity, the left drift of 9-, the right drift of 10-, 11-balance drift, 12-oil guide groove, 13-forming hole, 14-screwed hole, 15-attachment screw, 16-are threaded post, 17-threaded connection hole, 18-threaded connection hole, 19-groove, 20-connecting bolt, 21-pipe
Detailed description of the invention
Be used for three-way pipe internal high pressure forming flexible die device below in conjunction with accompanying drawing to the one in the utility model to elaborate.
As shown in Figure 1,2,3, 4: in the utility model device, upper plate 5, upper bed-plate 3, upper mold section 1, lower shoe 6, lower bottom base 4, female die 2, left drift 9, right drift 10, balance drift 11 is comprised.Upper plate 5 and upper bed-plate 3 are fixedly connected, and lower shoe 6 and lower bottom base 4 are fixedly connected; Upper plate 3 is provided with the connecting thread hole 14 coordinated with clamping pressure machine, to carry out matched moulds; Upper bed-plate 3 and lower bottom base 4 are all provided with groove 19, and two ends are provided with that the upper mold section 1 of threaded connection hole 18 is parallel with female die 2 to be placed in groove 19; The attachment screw 15 that upper mold section 1 is provided with by upper bed-plate 3 and lower bottom base 4 with female die 2 is connected, and the position of threaded connection hole 18 is arranged according to the position of attachment screw 15; The tubular cavity 8 being formed in upper mold section 1 that three-way pipe is responsible for die cavity 7 and be provided with being responsible for die cavity 7 and being interconnected simultaneously is coordinated with female die 2; The mutual through forming hole 13 that balance drift 11 is provided with by upper plate 5 and upper bed-plate 3 is connected with a tubular cavity 8; Three-way pipe supervisor die cavity 7 two ends are provided with left drift 9 and right drift 10, and right drift 10 axle center is provided with oil guide groove 12, for being connected with hydraulic pump; By attachment screw (15) can as required by have the upper mold section 1 of different radii and axial length, female die 2 carry out coordinating with upper bed-plate 3, lower bottom base 4 and formed by final matched moulds there is different-diameter, the three-way pipe of axially different length is responsible for die cavity 7, to form the pipe 21 of different tube diameters.
Upper bed-plate 3 two ends are provided with connecting bolt 20, and lower bottom base 4 is provided with the threaded connection hole 17 corresponding with connecting bolt 20, so that the location matched moulds of mould.
The utility model one is used for three-way pipe internal high pressure forming flexible die device and in use realizes mainly through following steps:
1), according to the maximum caliber D of required three-way pipe maxdetermine the width of upper bed-plate 3 and lower bottom base 4 further groove 19: the width of groove 19 is t, and length is l, wherein meets t > D max, see Fig. 1,2,3,4;
2), according to the maximum caliber D of required three-way pipe maxdetermine forming hole 13 aperture mutually through between upper plate 5 and upper bed-plate 3: forming hole aperture is d, wherein meets d>=D max, see Fig. 1,2;
3), upper mold section 1 can set as required with the axial length L of female die 2, to form the pipe 21 of different length, obtains the three-way pipe of higher length of tube, sees Fig. 2;
4), lower shoe 6 coordinates with lower bottom base 4 and is fixedly connected with, and is positioned in the groove 19 of lower bottom base 4 by female die 2, and is threaded by attachment screw 15; Be fixedly connected with upper bed-plate 3 by upper plate 5 equally, upper mold section 1 is positioned in upper bed-plate 3 groove 19, is threaded by attachment screw 15; By clamping pressure machine upper mold section 1 and female die 2 to be threaded with threaded connection hole 17 by connecting bolt 20 afterwards and to carry out matched moulds, see Fig. 1,3,4;
5), after matched moulds, initial pipe 21 is positioned in three-way pipe supervisor die cavity 7, the left drift 9 being controlled by hydraulic test to drive and right drift 10 pairs of pipe 21 two ends are sealed, oil guide groove 12 simultaneously on right drift 10 is connected with hydraulic pump, and hydraulic oil is injected in pipe 21, by pressure size in hydraulic pump control adjustment, see Fig. 2;
6), hydraulic test drives left drift 9 and right drift 10 pairs of pipes 21 to extrude, and under the double action of left drift 9 and right drift 10 and interior pressure, first pipe 21 elastic deformation occurs; And after entering plastic deformation, pipe 21, except being subject to the extruding force of the inside bulging power of hydraulic oil, left drift 9 and right drift 10, also has the equilibrant force of balance drift 11, now pipe 21 is along supervisor's die cavity 7 and tubular cavity 8 flow forming, until balance drift 11 exits, be shaped and terminate, see Fig. 5;
7), by the three-way pipe part after being shaped carry out shaping excision, be namely met the tee pipe fitting of requirement;
8), after die sinking by dismantling between attachment screw 15 pairs of bases 3,4 and half module 1,2, the pipe half module other satisfied condition and original base 3,4 re-start and are connected, to prepare the three-way pipe pipe fitting of different size;
Composition graphs 1,2,3,4, upper mold section 1 can be inconsistent with groove 19 degree of depth l with the axial length L of female die 2; Initial pipe 21 meets with other pipe half mode diameter D satisfied condition: D≤D max.

Claims (3)

1. the flexible die device for three-way pipe internal high pressure forming, it is characterized in that: comprise upper plate (5), upper bed-plate (3), upper mold section (1), lower shoe (6), lower bottom base (4), female die (2), left drift (9), right drift (10), balance drift (11), described upper and lower base plate (5,6) is fixedly connected with corresponding upper and lower base (3,4) respectively; Described upper and lower base (3,4) has groove (19), and upper and lower half module (1,2) is parallel to be placed in groove (19); Describedly complement each other to form in upper mold section (1) that three-way pipe is responsible for die cavity (7) tubular cavity (8) being provided with simultaneously and being responsible for die cavity (7) with three-way pipe and being interconnected with female die (2); Described balance drift (11) is connected with a tubular cavity (8); Described three-way pipe supervisor die cavity (7) two ends are provided with left and right (9,10) drift, and right drift (10) axle center is provided with oil guide groove (12).
2. a kind of flexible die device for three-way pipe internal high pressure forming according to claim 1, it is characterized in that: described upper plate (5) and upper bed-plate (3) are provided with mutually through forming hole (13), described forming hole (13) is connected with balance drift (11), and upper plate (5) is separately provided with the screwed hole (14) be connected with clamping pressure machine.
3. a kind of flexible die device for three-way pipe internal high pressure forming according to claim 1, is characterized in that: described upper and lower half module (1,2) two ends are provided with threaded connection hole (18); Described upper bed-plate (3) two ends are provided with connecting bolt (20), and lower bottom base (4) two ends are provided with the threaded connection hole (17) corresponding with connecting bolt (20); Described upper and lower base (3,4) groove (19) two ends are also provided with the attachment screw (15) corresponding with threaded connection hole (18); The post that is threaded (16) of described attachment screw (15) runs through upper and lower base (3,4) and connects with corresponding threaded connection hole (18) matching thread, can as required the upper and lower half module (1,2) with different radii and axial length be carried out coordinating with upper and lower (3,4) base by described attachment screw (15) and formed by final matched moulds there is different-diameter, the three-way pipe of axially different length is responsible for die cavity (7).
CN201520777877.1U 2015-10-09 2015-10-09 A flexible die set for high -pressure forming in three -way pipe CN205056771U (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107020315A (en) * 2017-05-24 2017-08-08 南昌航空大学 A kind of method of use polytetrafluoroethylene film partial lubrication hydroforming three-way pipe
CN108057760A (en) * 2017-11-30 2018-05-22 江西洪都航空工业集团有限责任公司 A kind of molding die of three-way pipe
CN108097777A (en) * 2017-12-22 2018-06-01 南昌航空大学 A kind of method and device that internal high pressure forming three-way pipe both ends is controlled radially to thicken
CN108326108A (en) * 2018-02-07 2018-07-27 南昌航空大学 A kind of method and device of interior high-pressure three-way pipe uniform wall thickness forming
CN108787847A (en) * 2018-06-18 2018-11-13 苏州渼富临信息科技有限公司 A kind of clamped-in style mold of pressure forming machine
CN108906962A (en) * 2018-06-18 2018-11-30 苏州渼富临信息科技有限公司 A kind of interior high pressure forming device with clamp system
CN109772991A (en) * 2019-01-28 2019-05-21 宁波市沃瑞斯机械科技有限公司 Rheology internal high pressure forming fraction solid control device and method based on water circulation separation system

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107020315A (en) * 2017-05-24 2017-08-08 南昌航空大学 A kind of method of use polytetrafluoroethylene film partial lubrication hydroforming three-way pipe
CN107020315B (en) * 2017-05-24 2018-08-07 南昌航空大学 A method of using polytetrafluoroethylene film partial lubrication hydroforming three-way pipe
CN108057760A (en) * 2017-11-30 2018-05-22 江西洪都航空工业集团有限责任公司 A kind of molding die of three-way pipe
CN108097777A (en) * 2017-12-22 2018-06-01 南昌航空大学 A kind of method and device that internal high pressure forming three-way pipe both ends is controlled radially to thicken
CN108097777B (en) * 2017-12-22 2019-06-28 南昌航空大学 A kind of method and device that control internal high pressure forming tee tube both ends radially thicken
CN108326108B (en) * 2018-02-07 2019-06-11 南昌航空大学 A kind of method and device of interior high-pressure three-way pipe uniform wall thickness forming
CN108326108A (en) * 2018-02-07 2018-07-27 南昌航空大学 A kind of method and device of interior high-pressure three-way pipe uniform wall thickness forming
CN108787847A (en) * 2018-06-18 2018-11-13 苏州渼富临信息科技有限公司 A kind of clamped-in style mold of pressure forming machine
CN108906962A (en) * 2018-06-18 2018-11-30 苏州渼富临信息科技有限公司 A kind of interior high pressure forming device with clamp system
CN109772991A (en) * 2019-01-28 2019-05-21 宁波市沃瑞斯机械科技有限公司 Rheology internal high pressure forming fraction solid control device and method based on water circulation separation system

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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20160302

Termination date: 20161009