CN207971612U - Positioning structure, mold for producing same, capillary tube and connecting tube assembly - Google Patents
Positioning structure, mold for producing same, capillary tube and connecting tube assembly Download PDFInfo
- Publication number
- CN207971612U CN207971612U CN201820029017.3U CN201820029017U CN207971612U CN 207971612 U CN207971612 U CN 207971612U CN 201820029017 U CN201820029017 U CN 201820029017U CN 207971612 U CN207971612 U CN 207971612U
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- capillary
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- ring
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- 238000003466 welding Methods 0.000 claims abstract description 29
- 238000004080 punching Methods 0.000 claims description 3
- 229910000679 solder Inorganic materials 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000037228 dieting effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a location structure, be used for generating its mould and capillary and connecting pipe subassembly. The capillary comprises a capillary main body, the positioning structure comprises a positioning ring and a positioning wedge which are formed on the outer wall of the capillary main body, wherein the positioning ring and the positioning wedge protrude out of the outer wall of the capillary, the positioning wedge is arranged on one side, close to the connecting pipe, of the positioning ring, and the small-diameter end of the positioning wedge is located on one side, far away from the positioning ring. The utility model provides a location structure can be so that when the connecting pipe suit was to the capillary before the welding, be formed with the clearance between the tip of connecting pipe and holding ring, during the welding, in this clearance can be flowed into smoothly to the molten solder for welding between capillary and the connecting pipe is more firm.
Description
Technical Field
The utility model relates to the field of welding technique, especially a welded location structure, a capillary and connecting tube subassembly and be used for generating that is used for capillary and connecting tube location structure's mould.
Background
The existing positioning method for welding the capillary tube and the connecting tube in household appliances such as air conditioners and the like comprises the steps of punching a convex ring on the capillary tube, and contacting the convex ring with the capillary tube connecting tube to play a positioning role, but the opening of the connecting tube is easily plugged by the convex ring, and welding flux is difficult to add during welding, so that the fusion depth is insufficient, and the welding defects such as cracking and leakage are easily caused.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide a positioning structure for welding a capillary tube and a connecting tube, which facilitates adding a molten solder between the capillary tube and the connecting tube during welding, a capillary tube and connecting tube assembly with more stable connection, and a mold for generating the positioning structure.
In order to achieve the above object, on the one hand, the utility model adopts the following technical scheme:
the utility model provides a welded location structure for capillary and connecting pipe, the capillary includes the capillary main part, location structure is including forming holding ring and location wedge on the outer wall of capillary main part, wherein, holding ring and location wedge all bulge in the outer wall setting of capillary, the location wedge sets up being close to of holding ring the one side at connecting pipe place, the path end position of location wedge is in keeping away from of location wedge one side of holding ring.
Preferably, the large diameter end of the positioning wedge is connected with the positioning ring or is of an integral structure.
Preferably, the positioning wedge is of an annular structure; or,
the locating wedge includes a plurality of wedge shaped protrusions disposed on a circumferential outer wall of the capillary body.
Preferably, the positioning wedge is designed as a cone in the axial direction of the capillary.
Preferably, the positioning wedge has a dimension in the axial direction of the capillary of 2 to 3 mm.
On the other hand, the utility model discloses a following technical scheme:
the utility model provides a capillary and connecting pipe subassembly, connect through the welding between capillary and the connecting pipe be provided with foretell location structure on the capillary, the tip of connecting pipe with constitute the welding part between the holding ring.
On the other hand, the utility model adopts the following technical scheme:
a die for producing the above-mentioned positioning structure, comprising a front die and a rear die which can be disposed on the capillary body and clamp the capillary body in a state of being separated from each other by a predetermined distance in the axial direction of the capillary body, the positioning ring and the positioning wedge being formed by punching the front die and/or the rear die in directions approaching each other, the front die and/or the rear die being provided with a space for forming the positioning wedge on the end portion thereof opposite to the other.
Preferably, the predetermined distance is 4-6 mm.
Preferably, the distance between the front and rear dies after impact is 2-3.5 mm.
Preferably, the space forming the positioning wedge is configured as a tapered space formed at an end of the front mold.
The utility model provides a capillary and connecting pipe are used for welded location structure, owing to be provided with the location wedge on the outer wall of capillary main part, when can be so that the connecting pipe suit is to the capillary before the welding, be formed with the clearance between the tip of connecting pipe and holding ring, during the welding, the molten solder can flow into smoothly in this clearance for welding between capillary and the connecting pipe is more firm.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 shows a schematic structural view of a capillary provided by the present invention;
FIG. 2 shows a left side view of FIG. 1;
fig. 3 shows an assembly view of the capillary tube and the connecting tube provided by the present invention before welding;
fig. 4 shows a schematic structural diagram of the mold provided by the present invention;
fig. 5 shows an enlarged view of a portion a in fig. 4.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. Well-known methods, procedures, and components have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
The application provides a capillary 1 and connecting pipe 2 subassembly is connected through the welding between capillary 1 and the connecting pipe 2, is provided with on capillary 1 and is used for welded location structure 3 for when welding between capillary 1 and connecting pipe 2, can make things convenient for the solder to flow in between capillary 1 and the connecting pipe 2, make the welded structure solder between capillary 1 and the connecting pipe 2 even, it is effectual to weld.
As shown in fig. 1-2, the capillary 1 includes a capillary body 11, and the positioning structure 3 for welding the capillary 1 and the connection tube 2 in the present application includes a positioning ring 31 and a positioning wedge 32 formed on the outer wall of the capillary body 11, wherein the positioning ring 31 and the positioning wedge 32 are both configured to protrude from the outer wall of the capillary 1, and the positioning wedge 32 is disposed on the side of the positioning ring 31 close to the connection tube 2. The positioning wedge 32 includes a small-diameter end 321 and a large-diameter end 322, and the maximum dimension of the large-diameter end 322 in the radial direction is larger than the maximum dimension of the small-diameter end 321 in the radial direction, so that a wedge-shaped positioning structure extending in the capillary axial direction is formed. The small diameter end 321 of the positioning wedge 32 is located on the side of the positioning wedge 32 away from the positioning ring 31. During welding, one end of the connecting tube 2 is sleeved on the radial outer side of one end of the capillary tube 1, the small diameter end 321 of the positioning wedge 32 is inserted into the connecting tube 2, and the large diameter end 322 is exposed, that is, the inner diameter of the connecting tube 2 is larger than the radial maximum dimension of the small diameter end 321 and smaller than the radial maximum dimension of the large diameter end 322, so that a welding part 5 (shown in fig. 3) is formed between the end of the connecting tube 2 and the positioning ring 31, before welding, the welding part 5 forms a gap for solder to flow into, during welding, molten solder flows into the gap, and the capillary tube 1 and the connecting tube 2 can be firmly connected.
Preferably, the large diameter end 322 of the positioning wedge 32 is connected to the positioning ring 31 or is an integral structure. This facilitates the machining of the locating wedge by clamping the capillary tube with a die and impacting the die (described in detail below).
In a preferred embodiment, the positional wedge 32 is an annular structure (not shown); alternatively, the positioning wedge 32 comprises a plurality of wedge-shaped protrusions provided on the circumferential outer wall of the capillary body 11. In the embodiment shown in fig. 1-2, two wedge-shaped projections are symmetrically arranged on the outer wall of the capillary body 11 in the circumferential direction, which already enables a stable support of the connection tube 2 and makes the machining easier due to the fact that the formation of the wedge-shaped projections requires less material than the formation of an annular positioning wedge.
Preferably, the positioning wedge 32 is formed in a tapered shape or a stepped shape in the axial direction of the capillary 1 (not shown in the drawings, the stepped positioning wedge 31 has a small diameter portion inserted into the connection tube 2 at the time of welding, and a large diameter portion exposed for forming a space into which the molten solder flows between the end of the connection tube 2 and the positioning ring 31). The positioning wedge 32 has a dimension in the capillary axial direction of 2-3mm, for example 2.5 mm. The locating wedge of this structure is when can playing support connecting pipe 2, convenient manufacturing.
The present application also provides a die 4 for producing the positioning structure 3 of the present application, as shown in fig. 4 to 5, wherein the die 4 includes a front die 41 and a rear die 42, the front die 41 and the rear die 42 can be disposed on the capillary body 11 and clamp the capillary body 11 in a state of being separated from each other by a predetermined distance in the axial direction of the capillary body 11, the positioning ring 31 and the positioning wedge 32 are formed by striking the front die 41 and the rear die 42 in directions approaching each other, a space 411 for forming the positioning wedge 32 is provided on the end portion of the front die 41 opposite to the rear die 42, the shape of the space 411 corresponds to the shape of the positioning wedge 32 after molding, for example, a taper formed at the end portion of the front die 41, and a large diameter end of the taper is provided near the end portion of the rear die 42. When the front die 41 and the rear die 42 perform the impact after clamping the capillary body 11, a part of the material on the capillary body 11 may be impacted into the space 411, thereby forming the positioning wedge 32. The forming die is simple in structure and convenient to operate, and can quickly form the positioning ring 31 and the positioning wedge 32. Preferably, the predetermined distance is 4-6mm, for example set to 5 mm. After impact, the front mold 41 and the rear mold 42 have a distance therebetween, which is set according to the size of the positioning ring 31 after formation, and more preferably, the distance between the front mold 41 and the rear mold 42 after impact is 2-3.5mm, for example, 3 mm. It is convenient to form the positioning ring 31 to a suitable size.
The application provides a capillary 1 and connecting pipe 2 are used for welded location structure 3, owing to be provided with location wedge 31 on the outer wall of capillary main part 11, can be so that before the welding connecting pipe 2 suit when capillary 1, be formed with the clearance between the tip of connecting pipe 2 and holding ring 31, during the welding, the molten solder can flow into smoothly in this clearance for the welding between capillary 1 and the connecting pipe 2 is more firm.
Those skilled in the art will readily appreciate that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
It will be understood that the above-described embodiments are illustrative only and not restrictive, and that various obvious and equivalent modifications and substitutions may be made in the details described herein by those skilled in the art without departing from the basic principles of the invention.
Claims (10)
1. The utility model provides a welded location structure for capillary and connecting pipe, the capillary includes the capillary main part, its characterized in that, location structure is including forming holding ring and location wedge on the outer wall of capillary main part, wherein, holding ring and location wedge all protrusion in the outer wall setting of capillary, the location wedge sets up being close to of holding ring the one side at connecting pipe place, the path end of location wedge is located keeping away from of holding wedge the one side of holding ring.
2. The positioning structure of claim 1, wherein the large diameter end of the positioning wedge is connected to the positioning ring or is an integral structure.
3. The positioning structure according to claim 1,
the positioning wedge is of an annular structure; or,
the locating wedge includes a plurality of wedge shaped protrusions disposed on a circumferential outer wall of the capillary body.
4. The positioning structure according to any one of claims 1 to 3, wherein the positioning wedge is configured to be tapered or stepped in the axial direction of the capillary.
5. The positioning structure according to any one of claims 1 to 3, wherein the positioning wedge has a dimension of 2 to 3mm in the capillary axial direction.
6. A capillary tube and connecting tube assembly, wherein the capillary tube and the connecting tube are connected by welding, the positioning structure of any one of claims 1 to 5 is provided on the capillary tube, and a welded portion is formed between the end of the connecting tube and the positioning ring.
7. A mold for producing the positioning structure of any of claims 1 to 5,
comprises a front die and a rear die which can be arranged on the capillary main body and clamp the capillary main body in a state of being separated from each other by a predetermined distance in the axial direction of the capillary main body, the positioning ring and the positioning wedge are formed by punching the front die and/or the rear die in a direction to approach each other,
the front mold and/or the rear mold is provided with a space for forming the positioning wedge on the end thereof opposite to the other.
8. The mold according to claim 7, wherein the predetermined distance is 4 to 6 mm.
9. A mould as claimed in claim 7, wherein the distance between the front and rear moulds after impact is from 2 to 3.5 mm.
10. The mold according to any one of claims 7 to 9, wherein the space for forming the positioning wedge is configured as a tapered space formed at an end portion of the front mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820029017.3U CN207971612U (en) | 2018-01-05 | 2018-01-05 | Positioning structure, mold for producing same, capillary tube and connecting tube assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820029017.3U CN207971612U (en) | 2018-01-05 | 2018-01-05 | Positioning structure, mold for producing same, capillary tube and connecting tube assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207971612U true CN207971612U (en) | 2018-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820029017.3U Active CN207971612U (en) | 2018-01-05 | 2018-01-05 | Positioning structure, mold for producing same, capillary tube and connecting tube assembly |
Country Status (1)
| Country | Link |
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| CN (1) | CN207971612U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623692A (en) * | 2018-12-06 | 2019-04-16 | 北京航空航天大学 | A kind of support connection device for thin-walled capillary pipe strength test |
| CN113028687A (en) * | 2019-12-09 | 2021-06-25 | 杭州赛富特设备有限公司 | Liquid homogenizing assembly and manufacturing method thereof |
-
2018
- 2018-01-05 CN CN201820029017.3U patent/CN207971612U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623692A (en) * | 2018-12-06 | 2019-04-16 | 北京航空航天大学 | A kind of support connection device for thin-walled capillary pipe strength test |
| CN113028687A (en) * | 2019-12-09 | 2021-06-25 | 杭州赛富特设备有限公司 | Liquid homogenizing assembly and manufacturing method thereof |
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