CN103157726A - Pipe joint expanded connection expanded sleeve mould - Google Patents
Pipe joint expanded connection expanded sleeve mould Download PDFInfo
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- CN103157726A CN103157726A CN2013101266883A CN201310126688A CN103157726A CN 103157726 A CN103157726 A CN 103157726A CN 2013101266883 A CN2013101266883 A CN 2013101266883A CN 201310126688 A CN201310126688 A CN 201310126688A CN 103157726 A CN103157726 A CN 103157726A
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Abstract
The invention discloses a pipe joint expanded connection expanded sleeve mould and relates to the technical field of mould manufacturing. The pipe joint expanded connection expanded sleeve mould comprises a plurality of punches which are provided with expanded pipe parts, a forming punch which is provided with a forming part, an upper clamp mould arranged in an upper clamp mould seat, and a lower clamp mould arranged in a lower clamp mould seat. When the upper clamp mould and the lower clamp mould are in a mould combining state, a forming cavity is arranged on a mould cavity between the upper clamp mould and the lower clamp mould. The shape of the forming cavity corresponds to the shape of the forming part of the forming punch. A pipe body to be expanded is arranged in the mould cavity in a penetrating mode, the plurality of punches of the forming cavity are punched in so that inner holes in the end portion of the pipe body are expanded in sequence, and then the forming punch is punched into the forming cavity so that the inner holes in the end portions of the pipe body are formed by expanding and pre-forming of hole openings by chamfering. Compared with the prior art, according to the pipe joint expanded connection expanded sleeve mould, the end portion of the pipe body can be subjected to bulging, the end portion of the pipe body, which is subjected to bulging and the pipe joint are connected in an expanded mode to form a pipe fitting connecting component, and the problems that an existing welded pipe fitting connecting component is low in qualified product rate, and production efficiency is low can be solved.
Description
Technical field
The present invention relates to the technology of die manufacturing field, the mould of bulging is carried out in especially a kind of end of body of the pipe fitting coupling assembling for car air-conditioner.
Background technology
The pipe fitting coupling assembling of car air-conditioner is the important parts that connects each parts of car air-conditioner, and its quality directly affects the performance of car air-conditioner; The pipe fitting coupling assembling of existing car air-conditioner is all generally that pipe joint is welded on the body end.In use there are the following problems for the pipe fitting coupling assembling of this structure: be 1, by being welded to connect due to pipe joint and body end, because of the endoporus of body and pipe joint less, welding slag in weld seam is difficult to cleaning, the pipe fitting distortion easily occurs, weld defectives such as blocking up, weld leakage, product qualified rate is low; If during 2 welding, burn-off phenomenon easily occurs in misoperation, cause the pipe joint partial melting to fall and need re-start welding, production efficiency is low; 3, the body due to the pipe fitting coupling assembling of most of car air-conditioner is elongate articles, easily deforms during welding.Therefore, many enterprises and forefathers find a kind ofly need not weld the process that pipe joint and body end can be coupled together, and have carried out a large amount of tests, and a kind of suitable process means of acquisition and method are not arranged so far.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of pipe joint expanded joint expansion set mould, with this pipe joint expanded joint expansion set mould, bulging is carried out in the end of body, body end and pipe joint with bulging carry out the pipe fitting coupling assembling that expanded joint consists of, and the pipe fitting coupling assembling accepted product percentage that can solve existing welding hangs down and the low problem of production efficiency.
The technical scheme that technical solution problem of the present invention adopts is: this pipe joint expanded joint expansion set mould comprises a plurality of drifts and the forming punch that is provided with setting section that are provided with expand tube section, is located at the upper clamp formwork in the upper clamp formwork seat and is located at the interior lower clamp formwork of lower clamp formwork seat; When described upper clamp formwork and described lower clamp formwork were the matched moulds state, die cavity between the two was provided with forming cavity, and the shape of the setting section of the shape of described forming cavity and described forming punching head is corresponding; The body for the treatment of bulging is installed in described die cavity, successively described body endoporus is carried out reaming by a plurality of drifts that pour described forming cavity, the more described forming punching head by pouring described forming cavity is with the preform of described body end ream forming and orifice chamfer.
In above-mentioned air-tightness detection device technical scheme, technical scheme can also be more specifically: a plurality of drifts are respectively the first drift, the second drift and the 3rd drift, and the expand tube section of these drifts is equipped with columniform bulging post and the locating dowel that is connected with described bulging post;
The setting section of described forming punch is provided with the shaping post corresponding with described bulging post and the locating dowel that is connected with described shaping post, and the diameter d of described shaping post is the D0+0.11 millimeter; Be connected with chamfering shaping post between described shaping post and described locating dowel, described chamfering shaping post is pre-small post-large cone, and the angle of the oblique angle b of described chamfering shaping post is 38 degree～40 degree;
Described upper clamp formwork is provided with the shaped hole corresponding with described shaping post and the locating hole that is connected with described shaped hole with described forming cavity between described lower clamp formwork, and the diameter D1 of described shaped hole is the D0+1.91 millimeter; Be connected with the chamfering shaped hole between described shaped hole and described locating hole, described chamfering shaped hole is pre-small post-large conical bore, and the angle of the oblique angle B1 of described chamfering shaped hole is 49 degree～51 degree; D is the diameter of the described body end endoporus of expansion forming.
Further, described upper clamp formwork and described lower clamp formwork are contained on described upper clamp formwork seat and described lower clamp formwork seat by bolt respectively.
The right direction of small end face of described chamfering shaping post cone is the place ahead.
Owing to having adopted technique scheme, the present invention compared with prior art, the beneficial effect that has is: 1, adopt drift that three diameters increase successively to carry out reaming according to the endoporus to the body end, with forming punch, the endoporus of body end is carried out expansion forming again, do not ftracture after the endoporus bulging of assurance body end, reach wall thickness even, endoporus and outer wall are smooth, can control more accurately product final molding size by the method that multiple tracks is processed; Chamfering preform to the body aperture adopts the oblique angle B1 of chamfering shaped hole greater than the angle setting of the oblique angle b of chamfering shaping post, make the body aperture when being squeezed, the material of orifice part has enough deformation spaces, and the aperture yet can not gone out and crackle occur because of being subject to moment; Due to the shaping post of forming punch be according to material and the apolegamy of punching press characteristic with the fit dimension of the shaped hole of the forming cavity of answering with it, the diameter of bore of guaranteeing to complete the body end of bulging is controlled in scope of design, and provides technical guarantee for the expanded joint operation in lower step; 2, carry out with pipe joint the pipe fitting coupling assembling that expanded joint is connected with the body end of bulging, the defectives such as easy to clean welding slag, pipe joint easily are not melted, the pipe fitting coupling assembling is yielding, the weldering stifled, welding leakage of can avoiding the weld seam that causes because of welding, product quality is improved greatly, and product qualified rate, production efficiency are high.
Description of drawings
Fig. 1 is the structural representation of the body end of the embodiment of the present invention.
Fig. 2 is the structural representation in first, second, third drift when work of the embodiment of the present invention.
Fig. 3 is the structural representation in forming punch when work of the embodiment of the present invention.
Fig. 4 is the left view of Fig. 2 and Fig. 3.
Fig. 5 is the structural representation of first, second, third drift of the embodiment of the present invention.
Fig. 6 is the structural representation of the forming punch of the embodiment of the present invention.
Fig. 7 is that the upper clamp formwork of the embodiment of the present invention and lower clamp formwork are the structural representation under the matched moulds state.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing:
Embodiment 1:
As shown in Figure 1 for completing bulging body end 7, the diameter D0 of the endoporus of body end 7 is 18.2 millimeters;
Comprise a plurality of drifts that are provided with expand tube section and the forming punch 9 that is provided with setting section as Fig. 2, Fig. 3 and pipe joint expanded joint expansion set mould shown in Figure 4; A plurality of drifts are respectively the first drift, the second drift and the 3rd drift, the leading portion of the expand tube section of these drifts is columniform guide pillar 4-1, the stage casing that is connected with leading portion is diameter greater than the columniform bulging post 4-2 of guide pillar 4-1, the back segment that is connected with the stage casing is diameter greater than the columniform locating dowel 4-3 of bulging post 4-2, all be connected with the pre-small post-large cone of one section rounding off between bulging post 4-2 and guide pillar 4-1, the bulging post 4-2 of the first drift, the second drift and the 3rd drift and the diameter of locating dowel 4-3 increase progressively successively; As shown in Figure 5.The leading portion of the expand tube section of forming punch 9 is the guide pillar identical with guide pillar 4-1, is the shaping post 9-2 corresponding with bulging post 4-2 with stage casing that leading portion connects, and the diameter d of shaping post 9-2 is 18.31 millimeters; Be the locating dowel 9-3 corresponding with locating dowel 4-3 with back segment that the stage casing connects; Be connected with chamfering shaping post between shaping post 9-2 and locating dowel 9-3, chamfering shaping post is pre-small post-large cone, and the angle of the oblique angle b of chamfering shaping post is 38 degree; As shown in Figure 6.Upper clamp formwork 3 is housed in upper clamp formwork seat 1, lower clamp formwork 5 is housed in lower clamp formwork seat 6, upper clamp formwork 3 and lower clamp formwork 5 are contained on upper clamp formwork seat 1 and lower clamp formwork seat 6 by bolt 2 respectively; When upper clamp formwork 3 and lower clamp formwork 5 were the matched moulds state, die cavity between the two was provided with forming cavity, and the shape of the expand tube section of the shape of forming cavity and forming punching head 9 is corresponding; The leading portion of forming cavity is the guide pillar hole corresponding with guide pillar 4-1, is the shaped hole corresponding with shaping post 9-2 with stage casing that leading portion connects, and the diameter D1 of shaped hole is 20.11 millimeters; Be the locating hole corresponding with described locating dowel 9-3 with back segment that the stage casing connects, be connected with the chamfering shaped hole between shaped hole and locating hole, the chamfering shaped hole is pre-small post-large conical bore, and the angle of the oblique angle B1 of chamfering shaped hole is 49 to spend, as shown in Figure 7.
Embodiment 2:
As shown in Figure 1 for completing bulging body end 7, the diameter D0 of the endoporus of body end 7 is 18.22 millimeters;
Comprise a plurality of drifts that are provided with expand tube section and the forming punch 9 that is provided with setting section as Fig. 2, Fig. 3 and pipe joint expanded joint expansion set mould shown in Figure 4; A plurality of drifts are respectively the first drift, the second drift and the 3rd drift, the leading portion of the expand tube section of these drifts is columniform guide pillar 4-1, the stage casing that is connected with leading portion is diameter greater than the columniform bulging post 4-2 of guide pillar 4-1, the back segment that is connected with the stage casing is diameter greater than the columniform locating dowel 4-3 of bulging post 4-2, all be connected with the pre-small post-large cone of one section rounding off between bulging post 4-2 and guide pillar 4-1, the bulging post 4-2 of the first drift, the second drift and the 3rd drift and the diameter of locating dowel 4-3 increase progressively successively; As shown in Figure 5.The leading portion of the expand tube section of forming punch 9 is the guide pillar identical with guide pillar 4-1, is the shaping post 9-2 corresponding with bulging post 4-2 with stage casing that leading portion connects, and the diameter d of shaping post 9-2 is 18.33 millimeters; Be the locating dowel 9-3 corresponding with locating dowel 4-3 with back segment that the stage casing connects; Be connected with chamfering shaping post between shaping post 9-2 and locating dowel 9-3, chamfering shaping post is pre-small post-large cone, and the angle of the oblique angle b of chamfering shaping post is 40 degree; As shown in Figure 6.Upper clamp formwork 3 is housed in upper clamp formwork seat 1, lower clamp formwork 5 is housed in lower clamp formwork seat 6, upper clamp formwork 3 and lower clamp formwork 5 are contained on upper clamp formwork seat 1 and lower clamp formwork seat 6 by bolt 2 respectively; When upper clamp formwork 3 and lower clamp formwork 5 were the matched moulds state, die cavity between the two was provided with forming cavity, and the shape of the expand tube section of the shape of forming cavity and forming punching head 9 is corresponding; The leading portion of forming cavity is the guide pillar hole corresponding with guide pillar 4-1, is the shaped hole corresponding with shaping post 9-2 with stage casing that leading portion connects, and the diameter D1 of shaped hole is 20.13 millimeters; Be the locating hole corresponding with described locating dowel 9-3 with back segment that the stage casing connects, be connected with the chamfering shaped hole between shaped hole and locating hole, the chamfering shaped hole is pre-small post-large conical bore, and the angle of the oblique angle B1 of chamfering shaped hole is 51 to spend, as shown in Figure 7.
During work, the body 7 for the treatment of bulging is installed in die cavity, first, second, and third drift by pouring forming cavity carries out reaming to the endoporus of body 7 ends successively, then the forming punching head 9 by pouring forming cavity is with the endoporus ream forming of body 7 ends; Because the drift that adopts three diameters to increase successively carries out reaming according to the endoporus to body 7 ends, then carry out expansion forming with the endoporus of 9 pairs of forming punches body 7 ends.Adopt the oblique angle B1 of chamfering shaped hole greater than the angle setting of the oblique angle b of chamfering shaping post, the chamfering preform is carried out in aperture to body 7 ends, the aperture of body end is subjected to ram extrusion, and the material of orifice part has enough deformation spaces, and the aperture can not liked to go out face because of moment and crackle occur.
Claims (3)
1. a pipe joint expanded joint expansion set mould, is characterized in that: comprise a plurality of drifts and the forming punch (9) that is provided with setting section that are provided with expand tube section, be located at the upper clamp formwork (3) in upper clamp formwork seat (1) and be located at the interior lower clamp formwork (5) of lower clamp formwork seat (6); When described upper clamp formwork (3) and described lower clamp formwork (5) were the matched moulds state, die cavity between the two was provided with forming cavity, and the shape of the setting section of the shape of described forming cavity and described forming punching head (9) is corresponding; The body for the treatment of bulging is installed in described die cavity, successively described body endoporus is carried out reaming by a plurality of drifts that pour described forming cavity, the more described forming punching head (9) by pouring described forming cavity is with the preform of described body end (7) ream forming and orifice chamfer.
2. pipe joint expanded joint expansion set mould according to claim 1, it is characterized in that: a plurality of drifts are respectively the first drift, the second drift and the 3rd drift, and the expand tube section of these drifts is equipped with columniform bulging post (4-2) and the locating dowel (4-3) that is connected with described bulging post (4-2);
The setting section of described forming punch (9) is provided with the shaping post (9-2) corresponding with described bulging post (4-2) and the locating dowel (9-3) that is connected with described shaping post (9-2), and the diameter (d) of described shaping post (9-2) is (D0+0.11) millimeter; Be connected with chamfering shaping post between described shaping post (9-2) and described locating dowel (9-3), described chamfering shaping post is pre-small post-large cone, and the angle at the oblique angle (b) of described chamfering shaping post is 38 degree～40 degree;
Described upper clamp formwork (3) is provided with the shaped hole corresponding with described shaping post (9-2) and the locating hole that is connected with described shaped hole with described forming cavity between described lower clamp formwork (5), and the diameter of described shaped hole (D1) is (D0+1.91) millimeter; Be connected with the chamfering shaped hole between described shaped hole and described locating hole, described chamfering shaped hole is pre-small post-large conical bore, and the angle of the oblique angle of described chamfering shaped hole (B1) is 49 degree～51 degree; (D0) be the diameter of bore of completing the described body end (7) of bulging.
3. pipe joint expanded joint expansion set mould according to claim 1 and 2, it is characterized in that: described upper clamp formwork (3) and described lower clamp formwork (5) are contained on described upper clamp formwork seat (1) and described lower clamp formwork seat (6) by bolt respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310126688.3A CN103157726B (en) | 2013-04-12 | 2013-04-12 | Pipe joint expanded joint expansion set mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310126688.3A CN103157726B (en) | 2013-04-12 | 2013-04-12 | Pipe joint expanded joint expansion set mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103157726A true CN103157726A (en) | 2013-06-19 |
| CN103157726B CN103157726B (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310126688.3A Expired - Fee Related CN103157726B (en) | 2013-04-12 | 2013-04-12 | Pipe joint expanded joint expansion set mould |
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| CN (1) | CN103157726B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238540A (en) * | 2016-08-31 | 2016-12-21 | 刘树生 | The moulding process of a kind of cement pump line and equipment thereof |
| CN110239071A (en) * | 2019-07-12 | 2019-09-17 | 南通鹿波汽车零部件有限公司 | A kind of nylon tube hole expansion die |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS549152A (en) * | 1977-06-23 | 1979-01-23 | Mitsuboshi Seisakusho | Method of making stairinggheaddpipe |
| JPS5452664A (en) * | 1977-10-04 | 1979-04-25 | Sanyo Electric Co Ltd | Forming method for pipe at pipe joint portion |
| CN1030036A (en) * | 1987-06-25 | 1989-01-04 | 卢成尧 | Change the hot-working method of inner and outer diameters of seamless seamless steel pipe |
| CN100384563C (en) * | 2003-11-28 | 2008-04-30 | 威齐格及弗兰克有限责任公司 | Method for producing a coupling on a pipe and device for producing said coupling |
| CN201720323U (en) * | 2010-05-04 | 2011-01-26 | 浙江爽凯汽车空调有限公司 | Compound bulging mould of pipe fittings of automobile air conditioner |
| CN203221135U (en) * | 2013-04-12 | 2013-10-02 | 柳州力通车用空调有限公司 | Pipe joint expanded-connection expansion-sleeve die |
-
2013
- 2013-04-12 CN CN201310126688.3A patent/CN103157726B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS549152A (en) * | 1977-06-23 | 1979-01-23 | Mitsuboshi Seisakusho | Method of making stairinggheaddpipe |
| JPS5452664A (en) * | 1977-10-04 | 1979-04-25 | Sanyo Electric Co Ltd | Forming method for pipe at pipe joint portion |
| CN1030036A (en) * | 1987-06-25 | 1989-01-04 | 卢成尧 | Change the hot-working method of inner and outer diameters of seamless seamless steel pipe |
| CN100384563C (en) * | 2003-11-28 | 2008-04-30 | 威齐格及弗兰克有限责任公司 | Method for producing a coupling on a pipe and device for producing said coupling |
| CN201720323U (en) * | 2010-05-04 | 2011-01-26 | 浙江爽凯汽车空调有限公司 | Compound bulging mould of pipe fittings of automobile air conditioner |
| CN203221135U (en) * | 2013-04-12 | 2013-10-02 | 柳州力通车用空调有限公司 | Pipe joint expanded-connection expansion-sleeve die |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106238540A (en) * | 2016-08-31 | 2016-12-21 | 刘树生 | The moulding process of a kind of cement pump line and equipment thereof |
| CN110239071A (en) * | 2019-07-12 | 2019-09-17 | 南通鹿波汽车零部件有限公司 | A kind of nylon tube hole expansion die |
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| Publication number | Publication date |
|---|---|
| CN103157726B (en) | 2015-09-02 |
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Granted publication date: 20150902 Termination date: 20180412 |