CN102198467A - Tee joint forming die and tee joint forming method - Google Patents
Tee joint forming die and tee joint forming method Download PDFInfo
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- CN102198467A CN102198467A CN 201010597070 CN201010597070A CN102198467A CN 102198467 A CN102198467 A CN 102198467A CN 201010597070 CN201010597070 CN 201010597070 CN 201010597070 A CN201010597070 A CN 201010597070A CN 102198467 A CN102198467 A CN 102198467A
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Abstract
The invention provides a tee joint forming die. The tee joint forming die comprises an upper die and a lower die which are combined together, wherein semi-circular groove-shaped cavities for accommodating a tee joint workpiece are symmetrically arranged on the upper die and the lower die; openings of the cavity are formed on lateral sides of the upper die and the lower die; the cavity is communicated with a tee joint branch pipe cavity; a support rod capable of reciprocating displacement is arranged in the tee joint branch pipe cavity; the support rod is connected with a support cylinder and transfers pressure by the support cylinder; and a tee joint branch pipe is filled with medium in the tee joint workpiece, and is formed in the tee joint branch pipe cavity in the hydraulic action of a hydraulic cylinder. By the tee joint forming die, a tee joint finished product has higher appearance quality and excellent uniformity; the U-shaped bend of the tee joint has smooth transition, the outer diameter of each position of the tee joint can achieve the requirement of equal diameter; and the current problem that the bend is flat after lead is filled can be solved.
Description
Technical field
The present invention relates to the Mould Machining field, more particularly, relate to a kind of threeway shaping dies and threeway manufacturing process.
Background technology
Threeway is a kind of conduit coupling.Be pipe fitting threeway, tee pipe fitting or three-way connection again, threeway is used in trunk line and wants bifurcation, and purposes is wide, industry face width, range of application are wide.The common copper threeway that makes in refrigerating field, the preparation method of traditional copper threeway mainly is to irritate plumbous method, copper pipe is cut certain-length, the lead that has melted is poured into the copper pipe inner chamber, treat lead after the copper pipe inner chamber solidifies, remove and stick to the lead of copper pipe surface and the lead of the copper pipe mouth of pipe, the influence that the difference in flow that produces in extrusion process for minimizing copper, lead causes product, the port of extruding at copper pipe bores an aperture, is the copper pipe threeway by hydraulic press with the copper pipe extrusion modling then.Need heating that the lead in the threeway is melted after the threeway moulding, and copper pipe annealing improved mechanical performance, if the shape of threeway is Y type or other profiled tee joint, the lead that also needs to have melted pours into the copper pipe inner chamber once more, treat plumbous after the copper pipe inner chamber solidifies, removing sticks to the lead of copper pipe surface and the lead of the copper pipe mouth of pipe, with punch press the semi-finished product of extrusion modling are bended into needed shape again, the cutting of product surplus is removed, heating makes the lead in the product melt, product is immersed in the acid solution removes the lead that sticks to the copper pipe inner chamber, cross clear water behind the deleading and clean.For preventing the product resilience, also need with punch press or miscellaneous equipment integer.With three mouth of pipe pickling then, oven dry, the check of the flat three-way pipe of bench drill car, pack.There is following shortcoming in this threeway processing method:
One, at present processes and cause contacting of human body and lead in the production process of threeway easily to irritate plumbous mode, and lead can cause serious harm to human body, it is mainly taken in the body through respiratory tract and alimentary canal, in a single day the plumbous human body that enters is even discharge by drug therapy is also difficult.Lead compound can enter human body by approach such as lung, digestive organs, skins, and savings gets up gradually in human body, and it can hinder erythrocytic g and D, wrecks people's nervous centralis, causes intelligence to descend.On the other hand, lead is a kind of non-renewable resources, and price grows to even greater heights, and the manufacturing cost of threeway is increased.Moreover, in 2005, beat up states such as alliance and Japan and issued restriction industrial lead, being defined in the process must not leading, makes the processing industry of threeway all transfer to developing country such as China and comes, and causes more lead contamination incident.
Two, the preparation method of traditional copper threeway mainly is the plumbous method of irritating, and the operation that three-way connection is shaped is: open material, deburring, comb, filling lead, clear plumbous, bore aperture, extrusion modling (putting into the mould of T type threeway), go cecum, deleading, wash lead, expansion (contracting) mouth, pickling, oven dry, check, packing; Also to add the operation of once irritating plumbous, clear lead, deleading if the threeway of other shape is made, again it is bent into different shapes by mechanical processing technique.Because formed product is forward and backward, all need plumbous heat fused, remain in copper spare inner chamber and will remove and also have lead after the formed product with acid soak.
Two, straight pipe needs to make Y-type three way type, bypass, the logical profiled tee joint shape that reaches other of pawl through the bend pipe operation after extrusion modling usually, the three-way shape that is bent into requirement from the pipe fitting of T shape makes the product flat ratio improve easily, product bends phenomenons such as position attenuation, makes the moulding uniformity of threeway also relatively poor.Directly influence the pipeline flow of air-conditioning refrigeration system, reduced air-conditioning usefulness.
Summary of the invention
The technical problem to be solved in the present invention is, deficiency at above-mentioned prior art existence, a kind of threeway shaping dies simple in structure, with low cost and threeway manufacturing process are provided, make the finished product profile more attractive in appearance, the high conformity of finished product, and can exempt plumbous in process of production pollution, lower than the plumbous processing method cost of present filling.
The technical solution used in the present invention is, a kind of threeway shaping dies is provided, constitute by the upper die and lower die matched moulds, on upper die and lower die, be symmetrical arranged cavity volume in order to the semicircle flute profile of holding the threeway workpiece, described cavity volume has opening at the sidepiece of upper and lower mould, described cavity volume is communicated with the tee branch chamber, but be provided with the support bar of shift reciprocately in the described tee branch chamber, described support bar is connected with shoring and transmits pressure by shoring, tee branch is to fill by the medium in the threeway workpiece, and by the hydraulic cylinder hydraulic action at described tee branch intracavity forming.
Above-mentioned threeway shaping dies, the shape of described threeway workpiece are U type pipes, and the cavity volume in order to hold the threeway workpiece that is provided with on the described upper die and lower die is semicircular U type groove, and the shape and the threeway workpiece of described U type groove are suitable.
Above-mentioned threeway shaping dies, described tee branch chamber is arranged in counterdie or the patrix.
Above-mentioned threeway shaping dies, described tee branch chamber is by constituting at the symmetrically arranged semicircle straight trough of upper die and lower die matched moulds respectively, behind upper and lower mould matched moulds, described tee branch can insert support bar in the chamber, and described support bar is connected with shoring and transmits pressure by shoring.
The medium that fills in the above-mentioned threeway shaping dies, described threeway workpiece is an aqueous water.
A kind of threeway manufacturing process of above-mentioned threeway shaping dies may further comprise the steps:
1) the threeway workpiece is clamped in the cavity volume that is synthesized by upper and lower mould, shoring is pushed the support bar in the tee branch chamber to the tube wall of threeway workpiece.
2) in the threeway workpiece, fill extrusion medium.
3) to the extrusion medium supercharging, the tube wall of extrusion medium extruded piping branch tee workpiece, tee branch is at described tee branch intracavity forming.
4) extrusion medium release in the threeway workpiece, support bar ejects cavity volume with the threeway workpiece.
The manufacturing process of above-mentioned threeway shaping dies fills aqueous water in the threeway workpiece, in the step of tee branch extrusion molding, liquid hydraulic pressure is 40～100MPa.Preferred value is 60～80MPa.
Compared with prior art, the present invention has the following advantages:
One, threeway shaping dies of the present invention makes the threeway finished product have higher presentation quality, and the finished product uniformity is good, the curved position transition of the U type of threeway slyness, threeway external diameter everywhere all can reach isometrical requirement, reduce production process, reduced the difficulty of production technology, improved the quality and the production capacity of product.
Two, threeway finishing die prodigiosin of the present invention is finished a plurality of workpiece simultaneously, the automaticity height, and mould is reasonable in design, can effectively reduce product rejection rate, enhances productivity.
Three, threeway manufacturing process of the present invention adopts the filled media of water as high-pressure extrusion, satisfies the command request that production process that states such as beatting up alliance and Japan issue can not leading fully, has exempted plumbous pollution.Effectively reduce plumbous infringement, make working environment cleaner, and the use cost of water is lower than plumbous operating personnel's health, and can be recycling, reach environmental protection function.
Description of drawings
Fig. 1 is a threeway former construction module sketch of the present invention;
Fig. 2 is the structural representation (counterdie) of threeway shaping dies of the present invention;
Fig. 3 is the thimble structure schematic diagram of threeway former of the present invention;
Fig. 4 is the patrix structural representation of embodiments of the invention two;
Fig. 5 is the counterdie structural representation of embodiments of the invention two;
Fig. 6 is the patrix structural representation of embodiments of the invention three;
Fig. 7 is the patrix structural representation of embodiments of the invention four;
Fig. 8 is the counterdie structural representation of embodiments of the invention four.
The specific embodiment
Below pass through the specific embodiment, and the invention will be further described in conjunction with the accompanying drawings.
Embodiment one
Threeway shaping dies of the present invention is made of patrix 11 and counterdie 12.See Fig. 1, the threeway former also comprises hydraulic press 10, hydraulic cylinder 13, thimble 131, shoring 14 and control system.Patrix 11 is installed in the upper cylinder half of hydraulic press 10 and is controlled at vertical direction by control system and walks up and down, counterdie 12 is placed on the hydraulic press platform, shoring 14 is used to control the extruded length of tee branch, the effect of thimble 131 is that two of workpiece that will be fixedly clamped by upper and lower mould are responsible for a mouthful shutoff fully, and irritate the liquid operation, the extruded piping branch tee workpiece, making Workpiece shaping is threeway.Thimble structure can be one and be communicated with hydraulic cylinder that another root is the entity of sealing, and liquid can only inject at threeway workpiece one end; Also can be that two thimbles are communicated with hydraulic cylinder, liquid all can be injected simultaneously in threeway workpiece two ends.Upper and lower mould is symmetrical arranged U type groove respectively, when upper and lower mould closes up, surround in order to hold the die cavity of tee pipe fitting by upper and lower mould, this die cavity and tee pipe fitting profile are suitable, through test as can be known, more suitable when both gaps are 0.01～0.03mm, convenient tee pipe fitting and the threeway of extraction finished product of placing U-shaped.
As shown in Figure 2, threeway shaping dies counterdie structural representation of the present invention.The counterdie 12 of threeway shaping dies is provided with U type groove 120, U type groove 120 is half slots, closes up the U-shaped chamber of back formation one cross section circle with the U type groove of patrix.Be provided with the tee branch chamber 140 that communicates with U type groove 120 in the counterdie, support bar 141 moves up and down in tee branch chamber 140, and moving of support bar driven by power set.Power set adopt the hydraulic machinery (not shown) usually.When the processing threeway, upper and lower mould matched moulds, thimble 131 are inserted in person in charge's mouth of pipe of the tee pipe fitting in the upper and lower mould U-shaped chamber, hydraulic work system, and aqueous water enters tee pipe fitting from the water-injecting cavity in the thimble, and the structure of thimble is seen Fig. 3.
The technological process that threeway is shaped is as follows:
1) matched moulds pressurize.With threeway workpiece to be formed put under touch U type groove, patrix moves down and counterdie closes up, and the threeway workpiece is clamped in the formed cavity volume of upper and lower mould U type groove.Shoring 14 promotes the U type bottom land that support bar goes upward to counterdie, and support bar is resisted against threeway workpiece tube wall.
2) fill extrusion medium.Clamp after the threeway workpiece, the reach of hydraulic system promotion thimble is inserted and mouth is responsible at the two ends of shutoff threeway workpiece, and water enters in the threeway workpiece from the water-injecting cavity of thimble, finishes the filling of extrusion medium.
3) threeway extrusion molding.Continuation is injected water under high pressure in the threeway workpiece, the pressure of water is for caning be controlled in 40～100MPa, hydraulic pressure preferably is 60～80MPa, squeeze cylinder continues to advance until locating to the location, under the effect of water under high pressure, the threeway workpiece is extruded, threeway workpiece tube wall bulging on tee branch chamber 140, support bar 141 is displaced downwardly to the pressure at both sides balance, and the arm extruding of threeway is finished.
4) discharging.The hydraulic system release retreats thimble, and patrix is up, and the pressure of water is released and makes support bar vertical toward top offset in the threeway, and the supported masthead of tee pipe fitting goes out.
Threeway of the present invention is shaped and adopts the medium of water as extrusion molding, has the huge social economic benefit, compared with adopting the mode of irritating lead forming or oil pressure shaping, the present invention has tangible technical advantage, the working hydraulic pressure of support bar both sides is adjusted in the shaping of tee branch by system, can change the extruding bulging length of arm, make the accommodation of mould more broad.Be provided with water receiving tank below the hydraulic press counterdie, after workpiece machined, the water in the workpiece flows into water receiving tank, and was recycling in the hydraulic return system, environmental protection and maintenance working environment cleaning.
Embodiment two
What Fig. 4, Fig. 5 represented is a kind of arm and the mutually perpendicular threeway processing mold of person in charge's direction structure.Referring to Fig. 4, a patrix 11 is provided with the U type groove group of being made up of eight U type grooves, and U type groove divides two rows to be symmetrical arranged, and makes the time processing of threeway can produce 8 simultaneously, has improved labor productivity greatly.Four jiaos of patrix respectively have a screw 21 that patrix is fixedly mounted on the hydraulic press, both sides in patrix U type groove group respectively are provided with an alignment pin 22, instantly, during the counterdie matched moulds, the alignment pin 22 of patrix is inserted in the dowel hole of counterdie, guarantees the upper and lower mould mold alignment.See Fig. 5, counterdie 12 is provided with corresponding with the patrix U type groove group of being made up of eight U type grooves, is useful on the tee branch chamber 140 of U type tee branch processing near curved position external-open in a side of each U type groove.When threeway adds man-hour, many thimbles insert in the formed die cavity of a plurality of upper and lower mould U type grooves simultaneously and mouth is responsible at the two ends of shutoff threeway workpiece, shoring 14 promotion support bars 141 go upward to and are resisted against threeway workpiece tube wall, water enters in the threeway workpiece from the water-injecting cavity of thimble, and before extruding, the pressure of water increased to fixed pressure, squeeze cylinder continues to be advanced into the place, location then, hydraulic pressure in the threeway workpiece constantly raises, water under high pressure promotes threeway workpiece tube wall bulging on tee branch chamber 140, support bar 141 is displaced downwardly to the pressure at both sides balance, and the arm extruding of threeway is finished.
Embodiment three
Fig. 6 represents is a kind of arm and be responsible at grade, be responsible for mouthful and prop up the opposite Y-type three way type processing mold structure of mouth of pipe direction.As shown in the figure, be provided with three Y type grooves side by side on patrix 11, Y type groove is made of the straight trough that U type groove and is communicated with U type trench bottom, and the structure of counterdie is identical with patrix.During upper and lower mould matched moulds, surround the tee branch chamber that is used to process arm by the semicircular straight trough of upper and lower mould.Threeway adds man-hour, the threeway workpiece of U-shaped is placed in the U type groove of counterdie, the upper and lower mould matched moulds, many thimbles insert in the formed die cavity of a plurality of upper and lower mould U type grooves simultaneously and mouth is responsible at the two ends of shutoff threeway workpiece, support bar inserts the straight trough section of Y type groove, and promote to make support bar be resisted against threeway workpiece tube wall by shoring, water enters in the threeway workpiece from the water-injecting cavity of thimble, and before extruding, the pressure of water increased to fixed pressure, squeeze cylinder continues to be advanced into the place, location then, and the hydraulic pressure in the threeway workpiece constantly raises, and water under high pressure promotes threeway workpiece tube wall bulging on the tee branch chamber, support bar moves to the pressure at both sides balance, and the arm extruding of threeway is finished.
Embodiment four
What Fig. 7, Fig. 8 represented is that the threeway person in charge is the diversified threeway mould structure of U type, arm direction.As shown in Figure 7, be provided with four U type grooves that are used to process threeway in the patrix 11, the arm direction of four threeways has nothing in common with each other, prop up the bottom center of the mouth of pipe at U type groove, the arm direction respectively with U type channel opening direction in the same way, reverse, be vertically upward and vertically downward in addition, certainly, the design of a mouth of pipe and arm direction can change according to the needs of order.Fig. 8 is the structural representation of counterdie 12, when arm be responsible in the same way or oppositely the time U type groove symmetry of upper and lower mould and be half slot.When arm when being responsible for, the U type groove in upper die and lower die all is half slots, the tee branch chamber is then being offered on the U of the patrix type groove or is being offered on the U of counterdie type groove.The processing method of threeway is identical with the processing method of the foregoing description, is not described further at this.
Claims (8)
1. threeway shaping dies, by patrix (11), counterdie (12) matched moulds constitutes, it is characterized in that: in patrix (11), be symmetrical arranged cavity volume on the counterdie (12) in order to the semicircle flute profile of holding the threeway workpiece, described cavity volume has opening at the sidepiece of upper and lower mould, described cavity volume is communicated with tee branch chamber (140), but be provided with the support bar (141) of shift reciprocately in the described tee branch chamber, described support bar (141) is connected with shoring (14) and transmits pressure by shoring (14), tee branch is to fill by the medium in the threeway workpiece, and by hydraulic cylinder (13) hydraulic action at described tee branch chamber (140) internal shaping.
2. threeway shaping dies according to claim 1, it is characterized in that: the shape of described threeway workpiece is a U type pipe, it is semicircular U type groove (120) that described patrix (11), counterdie (12) are gone up the cavity volume in order to hold the threeway workpiece that is provided with, and the shape of described U type groove (120) and threeway workpiece are suitable good.
3. threeway shaping dies according to claim 2 is characterized in that: described tee branch chamber (140) is arranged in counterdie (12) or the patrix (11).
4. threeway shaping dies according to claim 1, it is characterized in that: described tee branch chamber (140) is by constituting at patrix (11) and the symmetrically arranged semicircle straight trough of counterdie (12) matched moulds respectively, behind patrix (11), counterdie (12) matched moulds, can insert support bar (141) in the described tee branch chamber (140), described support bar (141) is connected with shoring (14) and transmits pressure by shoring.
5. according to claim 1 or 2 or 3 or 4 described threeway shaping dies, it is characterized in that: the medium that fills in the described threeway workpiece is an aqueous water.
6. the threeway manufacturing process of threeway shaping dies according to claim 1 is characterized in that may further comprise the steps:
1) the threeway workpiece is clamped in the cavity volume that is synthesized by patrix (11), counterdie (12), shoring (14) is pushed the support bar (141) in tee branch chamber (140) to the tube wall of threeway workpiece.
2) in the threeway workpiece, fill extrusion medium.
3) to the extrusion medium supercharging, the tube wall of extrusion medium extruded piping branch tee workpiece, tee branch is at described tee branch chamber (140) internal shaping.
4) extrusion medium release in the threeway workpiece, support bar (141) ejects cavity volume with the threeway workpiece.
7. the threeway manufacturing process of threeway shaping dies according to claim 6 is characterized in that: fill aqueous water in the threeway workpiece, in the step of tee branch extrusion molding, liquid hydraulic pressure is 40～100MPa.
8. the manufacturing process of threeway shaping dies according to claim 7 is characterized in that: in the step of tee branch extrusion molding, the preferred value of liquid hydraulic pressure is 60～80MPa.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010597070 CN102198467A (en) | 2010-03-10 | 2010-12-21 | Tee joint forming die and tee joint forming method |
| PCT/CN2011/080654 WO2012083747A1 (en) | 2010-12-21 | 2011-10-11 | Tee joint shaping mould and method for shaping tee joint |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010123554 | 2010-03-10 | ||
| CN201010123554.2 | 2010-03-10 | ||
| CN 201010597070 CN102198467A (en) | 2010-03-10 | 2010-12-21 | Tee joint forming die and tee joint forming method |
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| CN102198467A true CN102198467A (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010597070 Pending CN102198467A (en) | 2010-03-10 | 2010-12-21 | Tee joint forming die and tee joint forming method |
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| WO2012083747A1 (en) * | 2010-12-21 | 2012-06-28 | 佛山市顺德区燉煌五金塑料实业有限公司 | Tee joint shaping mould and method for shaping tee joint |
| CN102641937A (en) * | 2012-02-29 | 2012-08-22 | 佛山市顺德区燉煌五金塑料实业有限公司 | Y-shaped tee joint forming equipment with support die |
| CN102658321A (en) * | 2012-03-29 | 2012-09-12 | 佛山市顺德区燉煌五金塑料实业有限公司 | Tee extrusion method |
| WO2013166875A1 (en) * | 2012-05-09 | 2013-11-14 | Li Zhennan | Supporting auxiliary equipment for forming three-way part |
| CN103495838A (en) * | 2013-09-23 | 2014-01-08 | 陈锐球 | Irrigation extrusion process of abnormal-shaped tee pipes for air conditioner and pipe fittings manufactured according to irrigation extrusion process |
| CN103752900A (en) * | 2011-12-31 | 2014-04-30 | 许晓华 | Drill clamp |
| CN103769429A (en) * | 2014-02-25 | 2014-05-07 | 河南源泉电器有限公司 | Y-shaped pipe manufacturing device and method |
| CN103920789A (en) * | 2014-05-06 | 2014-07-16 | 哈尔滨工业大学 | Internal high pressure forming die and method of elbow T-branch pipe |
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| WO2012083747A1 (en) * | 2010-12-21 | 2012-06-28 | 佛山市顺德区燉煌五金塑料实业有限公司 | Tee joint shaping mould and method for shaping tee joint |
| CN103752900A (en) * | 2011-12-31 | 2014-04-30 | 许晓华 | Drill clamp |
| CN103752900B (en) * | 2011-12-31 | 2016-09-28 | 许晓华 | Boring grab |
| CN102641937B (en) * | 2012-02-29 | 2014-08-27 | 佛山市顺德区燉煌五金塑料实业有限公司 | Y-shaped tee joint forming equipment with support die |
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| CN102658321A (en) * | 2012-03-29 | 2012-09-12 | 佛山市顺德区燉煌五金塑料实业有限公司 | Tee extrusion method |
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| CN103495838A (en) * | 2013-09-23 | 2014-01-08 | 陈锐球 | Irrigation extrusion process of abnormal-shaped tee pipes for air conditioner and pipe fittings manufactured according to irrigation extrusion process |
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| CN103769429B (en) * | 2014-02-25 | 2015-12-02 | 赵肖运 | A kind of Y-piece producing device and preparation method thereof |
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| CN105562496A (en) * | 2015-12-09 | 2016-05-11 | 英昌精密机械设备（泰州）有限公司 | Manufacturing method and device of tee joint pipe fitting |
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Application publication date: 20110928 |