CN110883398A - Vacuum brazing tool for plate-fin heat exchanger - Google Patents
Vacuum brazing tool for plate-fin heat exchanger Download PDFInfo
- Publication number
- CN110883398A CN110883398A CN201911015353.8A CN201911015353A CN110883398A CN 110883398 A CN110883398 A CN 110883398A CN 201911015353 A CN201911015353 A CN 201911015353A CN 110883398 A CN110883398 A CN 110883398A
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- China
- Prior art keywords
- plate
- heat exchanger
- positioning
- positioning pin
- fin heat
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/14—Heat exchangers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a vacuum brazing tool for a plate-fin heat exchanger, which comprises an upper pressing plate, a lower pressing plate and a plurality of positioning rods, wherein the upper pressing plate and the lower pressing plate are arranged at intervals up and down, two ends of each positioning rod respectively penetrate through the upper pressing plate and the lower pressing plate correspondingly, locking parts are arranged at two ends of each positioning rod, and a plurality of positioning parts and positioning pins are symmetrically arranged on the lower surface of the upper pressing plate and the upper surface of the lower pressing plate. The vacuum brazing tool for the plate-fin heat exchanger improves the positioning precision of brazing and ensures the flatness of each plane of the heat exchanger and the verticality requirement of each plane relative to the bottom surface.
Description
Technical Field
The invention relates to the technical field of brazing tools, in particular to a vacuum brazing tool for a plate-fin heat exchanger.
Background
As a conventional heat exchanger, under the condition that the shape of the specially-shaped efficient ultra-light titanium alloy plate-fin heat exchanger developed at this time is equivalent to that of the conventional heat exchanger, the shape error which can be ensured by a conventional tool at present is as follows:
1) the diagonal error of the heat exchanger is more than 1 mm;
2) the height error of the heat exchanger is 0.5 mm-1 mm;
3) the heat exchanger can be inclined after being welded, and the inclination error is more than 3.6 mm;
above only for the heat exchanger brazing accomplish the appearance error that the back can direct detection, the heat exchanger through conventional frock brazing has certain law: firstly, the heat exchanger is regular in appearance, generally has a three-dimensional regular structure and consists of six planes, so that the conventional assembly tool is relatively single in use; secondly, need transfer the heat exchanger to the brazing jig plate from the assembly fixture after the assembly under conventional conditions, then carry out the arrangement of appearance, the operation is repeated, loaded down with trivial details, and increased the heat exchanger deformation that the human factor leads to. Therefore, the following problems exist as a conventional brazing tool:
1) the precision is not high;
2) the efficiency is low;
3) the heat exchanger is moved to a brazing tool from the assembly table, and the transfer error is artificially increased;
4) the heat exchanger is easy to be inclined and scrapped due to human factors;
5) the assembly requirement of the heat exchanger with a special-shaped structure cannot be met;
6) the bottom plate is thick, the heat absorption capacity is large, and the brazing time is long.
The specially-shaped efficient ultra-light titanium alloy plate-fin heat exchanger developed at this time has the technical index requirements of irregular appearance, high requirements on flatness and verticality errors of the tool, high requirements on parallelism of an upper plane and a lower plane and the like, and the conventional heat exchanger brazing tool cannot normally complete brazing work at present.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a plate-fin heat exchanger vacuum brazing tool which has the technical effects of high positioning precision and high brazing tool efficiency.
In order to solve the technical problems, the invention adopts the technical scheme that:
the utility model provides a plate-fin heat exchanger vacuum brazing frock, wherein, includes top board, holding down plate and a plurality of locating lever, the top board sets up with the holding down plate interval from top to bottom, and the both ends of locating lever correspond respectively and pass top board and holding down plate to all be equipped with the retaining member at the both ends of locating lever, its characterized in that, the symmetry is equipped with a plurality of setting elements and dowel pin on top board lower surface and the holding down plate upper surface.
Preferably, the plate-fin heat exchanger vacuum brazing tool is characterized in that a first positioning pin, a first positioning piece, a second positioning pin, a third positioning piece, a fourth positioning piece and a third positioning pin are sequentially arranged on the lower surface of the upper pressure plate; first locating pin, first locating component, second locating component use the axis of second locating pin to be provided with third setting element, fourth setting element and third locating pin as symmetry axis symmetry.
Preferably, the vacuum brazing tool for the plate-fin heat exchanger is characterized in that a fourth positioning pin is further arranged on the lower surface of the upper pressure plate.
Preferably, in the vacuum brazing tool for the plate-fin heat exchanger, a fifth positioning pin, a fifth positioning piece, a sixth positioning pin, a seventh positioning piece, an eighth positioning piece and a seventh positioning pin are sequentially arranged on the upper surface of the lower pressing plate; and the fifth positioning pin, the fifth positioning piece and the sixth positioning piece are symmetrically provided with a seventh positioning piece, an eighth positioning piece and a seventh positioning pin by taking the central axis of the sixth positioning pin as a symmetry axis.
Preferably, the vacuum brazing tool for the plate-fin heat exchanger is characterized in that an eighth locating pin is further arranged on the upper surface of the lower pressing plate.
Preferably, the plate-fin heat exchanger vacuum brazing tool is provided with a locking piece, wherein the locking piece is a locking nut.
Preferably, the vacuum brazing tool for the plate-fin heat exchanger is characterized in that the upper pressing plate and the lower pressing plate are made of titanium alloy.
Has the advantages that:
(1) the vacuum brazing tool for the plate-fin heat exchanger improves the positioning precision of brazing and ensures the flatness of each plane of the heat exchanger and the verticality requirement of each plane relative to the bottom surface.
(2) The vacuum brazing tool for the plate-fin heat exchanger can complete the one-time brazing of the plate-fin heat exchanger, and does not need the transfer and subsequent finishing work of the heat exchanger, so that the efficiency is improved; the assembly operation is directly carried out on the brazing bottom plate, so that the assembly procedures are reduced, and errors caused by secondary assembly are reduced; the brazed heat exchanger has a neat appearance, and can completely meet the brazing requirement of the heat exchanger with a special-shaped structure;
(3) the vacuum brazing tool for the plate-fin heat exchanger is detachable, convenient to store and keep, capable of being repeatedly used and free of influence on precision.
Drawings
FIG. 1 is a schematic structural diagram of a vacuum brazing tool for a plate-fin heat exchanger according to the present invention;
fig. 2 is a top view of the vacuum brazing tool for the plate-fin heat exchanger according to the invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
The invention relates to a brazing tool for a fin heat exchanger, which has certain pertinence and is specially used for assembling a special-shaped heat exchanger, the shape structure of the brazing tool is customized according to the shape of the heat exchanger, the size of the assembled heat exchanger is only 80 multiplied by 120 multiplied by 243, the whole weight is about 1.7Kg, an upper panel and a lower panel are protruded, the left plane and the right plane of the heat exchanger are respectively provided with a sawtooth structure higher than the plane, great difficulty is added to the brazing work of the heat exchanger, and the brazing tool for the heat exchanger aims at the problems of the brazing work of the heat exchanger, and referring to figures 1-2, the invention provides a vacuum brazing tool for the fin heat exchanger, wherein the vacuum brazing tool comprises an upper pressure plate 1, a lower pressure plate 2 and a plurality of positioning rods 3, the upper pressure plate 1 and the lower pressure plate 3 are arranged at intervals, two ends of the positioning rods 2 respectively penetrate through the upper pressure plate 1 and the lower pressure plate, a plurality of positioning pieces and positioning pins are symmetrically arranged on the lower surface of the upper pressing plate 1 and the upper surface of the lower pressing plate 3. The arrangement of the positioning piece and the positioning pin can avoid dislocation in the brazing process of the heat exchanger and meet the brazing requirement of the special-shaped heat exchanger; the brazing tool mainly ensures that the heat exchanger can obtain good appearance and the overall dimension meeting the design requirement at the brazing temperature, so that the precision of the brazing tool is higher than the overall dimension requirement of the heat exchanger, the positioning rod can be used for brazing the lower plate, and the positioning rod has a limiting effect relative to the brazing upper plate; the heat dissipation groove formed by the upper pressing plate, the lower pressing plate and the positioning rod in a surrounding mode can play a role in heat dissipation.
In the above embodiment, the lower surface of the upper platen 1 is sequentially provided with the first positioning pin 11, the first positioning member 12, the second positioning member 13, the second positioning pin 14, the third positioning member 15, the fourth positioning member 16 and the third positioning pin 17; the first positioning pin 11, the first positioning member 12 and the second positioning member 13 are symmetrically provided with a third positioning member 15, a fourth positioning member 16 and a third positioning pin 17 by taking the central axis of the second positioning pin 14 as a symmetry axis.
In the above embodiment, the lower surface of the upper press plate 1 is further provided with a fourth positioning pin. The fourth positioning pin is arranged in the middle of the lower surface of the upper pressure plate 1.
In the above embodiment, the upper surface of the lower pressing plate 3 is provided with the fifth positioning pin 31, the fifth positioning member 32, the sixth positioning member 33, the sixth positioning pin 34, the seventh positioning member 35, the eighth positioning member 36 and the seventh positioning pin 37 in sequence; the fifth positioning pin 31, the fifth positioning member 32, and the sixth positioning member 33 are provided with a seventh positioning member 35, an eighth positioning member 36, and a seventh positioning pin 37, which are axisymmetrical with respect to the center axis of the sixth positioning pin 34.
In the above embodiment, the upper surface of the lower press plate 3 is further provided with the eighth positioning pin 38.
In the above embodiment, the locking member 4 is a lock nut.
In the above embodiment, the upper platen 1 and the lower platen 3 are made of titanium alloy.
Working principle and working process of brazing tool
1) Assembly of brazing tool
The combined tool needs to be disassembled for storage during daily storage, so that the problems of deformation, corrosion and the like are avoided, and the combined tool needs to be assembled according to the structure shown in the drawing before use. Firstly, assembling a first positioning pin, a second positioning pin, a third positioning pin and a fourth positioning pin on an upper pressure plate, and assembling a fifth positioning pin, a sixth positioning pin, a seventh positioning pin and an eighth positioning pin on a lower pressure plate; secondly, the locating lever is connected through the retaining member with the assembly of holding down plate, prevents to loosen and takes off, and the straightness error that hangs down of locating lever and holding down plate is steerable at 0.1mm, guarantees the high demand of brazing of heat exchanger then. The operation does not need redundant debugging, is simple and feasible, and can obtain the control index only by fixing the control index in place according to requirements.
2) Assembly
The heat exchanger can be directly assembled on the lower pressure plate, the appearance of the heat exchanger is matched with that of the positioning piece of the lower pressure plate, the center coincidence is ensured, and the heat exchanger cannot be inclined in the brazing process.
3) Fixing
After the assembly is finished, the pressing plate is directly installed and connected through the locking piece to limit the position and the height of the pressing plate;
4) height control in the brazed state
In the brazing process, when the core body height descends to a certain degree, the locating rod can limit the descending of the core body, the height consistency of the heat exchanger is ensured, and the parallelism of the upper surface and the lower surface of the heat exchanger can reach within 0.22 mm.
In the brazing process, when the core height degree of falling to a certain degree, the top board does not contact with the locating platform of locating lever moreover, then the heat exchanger is unanimous in the fastening state, and the heat exchanger height can keep in common descending altitude range, and the highly uniform that the top board descends can be guaranteed to the locating lever, about can not appear or front and back slope, and the upper and lower depth of parallelism can reach within 0.12 mm.
5) Storage of brazing tool
The combined tool needs to be used according to requirements, after the combined tool is used, the surface of the combined tool is subjected to protection treatment, the combined tool is placed on a specified support frame, the storage environment is required to be dry, and the storage temperature is 18-23 ℃.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (7)
1. The utility model provides a plate-fin heat exchanger vacuum brazing frock, its characterized in that, includes top board, holding down plate and a plurality of locating lever, the top board sets up with the holding down plate interval from top to bottom, and the both ends of locating lever correspond respectively and pass top board and holding down plate to all be equipped with the retaining member at the both ends of locating lever, its characterized in that, the symmetry is equipped with a plurality of setting elements and dowel on top board lower surface and the holding down plate upper surface.
2. The plate-fin heat exchanger vacuum brazing tool according to claim 1, wherein a first positioning pin, a first positioning piece, a second positioning pin, a third positioning piece, a fourth positioning piece and a third positioning pin are sequentially arranged on the lower surface of the upper pressure plate; the first positioning pin, the first positioning piece and the second positioning piece are symmetrically provided with a third positioning piece, a fourth positioning piece and a third positioning pin by taking the central axis of the second positioning pin as a symmetry axis.
3. The plate-fin heat exchanger vacuum brazing tool according to claim 2, wherein a fourth positioning pin is further arranged on the lower surface of the upper pressure plate.
4. The plate-fin heat exchanger vacuum brazing tool according to claim 1, wherein a fifth positioning pin, a fifth positioning piece, a sixth positioning pin, a seventh positioning piece, an eighth positioning piece and a seventh positioning pin are sequentially arranged on the upper surface of the lower pressing plate; and the fifth positioning pin, the fifth positioning piece and the sixth positioning piece are symmetrically provided with a seventh positioning piece, an eighth positioning piece and a seventh positioning pin by taking the central axis of the sixth positioning pin as a symmetry axis.
5. The plate-fin heat exchanger vacuum brazing tool according to claim 4, wherein an eighth locating pin is further arranged on the upper surface of the lower pressing plate.
6. The plate-fin heat exchanger vacuum brazing tool according to claim 1, wherein the locking piece is a locking nut.
7. The plate-fin heat exchanger vacuum brazing tool according to claim 1, wherein the upper pressing plate and the lower pressing plate are made of titanium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015353.8A CN110883398A (en) | 2019-10-24 | 2019-10-24 | Vacuum brazing tool for plate-fin heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911015353.8A CN110883398A (en) | 2019-10-24 | 2019-10-24 | Vacuum brazing tool for plate-fin heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110883398A true CN110883398A (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911015353.8A Pending CN110883398A (en) | 2019-10-24 | 2019-10-24 | Vacuum brazing tool for plate-fin heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110883398A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975046A (en) * | 2021-03-09 | 2021-06-18 | 江苏卓然恒泰低温科技有限公司 | Aluminum plate-fin plate bundle combined flexible clamp |
Citations (8)
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|---|---|---|---|---|
| JPH10311696A (en) * | 1997-05-09 | 1998-11-24 | Daishin Kogyo Kenkyusho:Kk | Receiving jig for heat exchanger |
| CN2374300Y (en) * | 1999-05-10 | 2000-04-19 | 陈仰霄 | Welding processing mould for radiator fin and base plate |
| CN101301714A (en) * | 2008-06-17 | 2008-11-12 | 南京工业大学 | Stainless steel plate fin type heat exchanger core body high-temperature brazing jig and manufacturing process thereof |
| CN204565475U (en) * | 2015-01-16 | 2015-08-19 | 江苏科力普汽车部件有限公司 | The weldment fixture of diesel engine radiator |
| CN104972234A (en) * | 2015-07-17 | 2015-10-14 | 上海科凌能源科技有限公司 | Tool for laser welding of printed circuit heat exchanger |
| CN107584184A (en) * | 2017-09-13 | 2018-01-16 | 无锡市普尔换热器制造有限公司 | A kind of soldering processes for reducing vacuum brazing deformation |
| CN108637421A (en) * | 2018-05-21 | 2018-10-12 | 中国石油大学(华东) | A kind of plate-fin heat exchanger brazing jig |
| CN208628611U (en) * | 2018-08-23 | 2019-03-22 | 新乡平原航空器材有限公司 | A kind of plate fin type heat exchanger core brazing tooling |
-
2019
- 2019-10-24 CN CN201911015353.8A patent/CN110883398A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10311696A (en) * | 1997-05-09 | 1998-11-24 | Daishin Kogyo Kenkyusho:Kk | Receiving jig for heat exchanger |
| CN2374300Y (en) * | 1999-05-10 | 2000-04-19 | 陈仰霄 | Welding processing mould for radiator fin and base plate |
| CN101301714A (en) * | 2008-06-17 | 2008-11-12 | 南京工业大学 | Stainless steel plate fin type heat exchanger core body high-temperature brazing jig and manufacturing process thereof |
| CN204565475U (en) * | 2015-01-16 | 2015-08-19 | 江苏科力普汽车部件有限公司 | The weldment fixture of diesel engine radiator |
| CN104972234A (en) * | 2015-07-17 | 2015-10-14 | 上海科凌能源科技有限公司 | Tool for laser welding of printed circuit heat exchanger |
| CN107584184A (en) * | 2017-09-13 | 2018-01-16 | 无锡市普尔换热器制造有限公司 | A kind of soldering processes for reducing vacuum brazing deformation |
| CN108637421A (en) * | 2018-05-21 | 2018-10-12 | 中国石油大学(华东) | A kind of plate-fin heat exchanger brazing jig |
| CN208628611U (en) * | 2018-08-23 | 2019-03-22 | 新乡平原航空器材有限公司 | A kind of plate fin type heat exchanger core brazing tooling |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112975046A (en) * | 2021-03-09 | 2021-06-18 | 江苏卓然恒泰低温科技有限公司 | Aluminum plate-fin plate bundle combined flexible clamp |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200317 |