CN107649579B - Modular brazing plate type heat exchanger forming die - Google Patents
Modular brazing plate type heat exchanger forming die Download PDFInfo
- Publication number
- CN107649579B CN107649579B CN201710893541.5A CN201710893541A CN107649579B CN 107649579 B CN107649579 B CN 107649579B CN 201710893541 A CN201710893541 A CN 201710893541A CN 107649579 B CN107649579 B CN 107649579B
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- fixing plate
- upper die
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- 238000005219 brazing Methods 0.000 title claims abstract description 30
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 2
- 238000003754 machining Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000009467 reduction Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/02—Die constructions enabling assembly of the die parts in different ways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the field of brazing sheet type heat exchanger forming dies, in particular to a modularized brazing sheet type heat exchanger forming die, wherein an upper die frame for positioning an upper die core is arranged on an upper die fixing plate, the upper die core is arranged in a frame of the upper die frame and is connected with the upper die fixing plate, two long side sides of the upper die core are clung to the inner side of the upper die frame, a lower die frame for positioning a lower die core is arranged on a lower die fixing plate, the lower die core is arranged in the frame of the lower die frame and is connected with the lower die fixing plate, two long side sides of the lower die core are clung to the inner side of the lower die frame, and the upper die core and the lower die core are of split splicing structures. Under the same auxiliary die frame, the brazing plate heat exchanger plates of different types can be pressed only by extracting or adding the independent modules, and the input cost of the die is greatly reduced. The machining precision and grinding precision of each independent module are improved, the handle is controlled, and the precision of the forming die is greatly improved.
Description
Technical Field
The invention relates to the field of brazing sheet type heat exchanger forming dies, in particular to a modularized brazing sheet type heat exchanger forming die.
Background
At present, the external dimensions of the brazing sheet type heat exchangers developed by various manufacturing enterprises are gradually increased, and the core dimensions of the manufactured core and the core dimensions of the forming die of the heat exchange sheet are necessarily also gradually increased. The forming dies used for pressing the plates are all integrated die cores. The brazing sheet type heat exchanger has the pressure resistance of 45bar, the thickness of the heat exchange sheet is very thin and is only 0.3-0.4 mm, meanwhile, the shape of the sheet is complex, the dimensional accuracy is high, and the resilience of a metal material is added, so that extremely high requirements are imposed on the design of a die and the processing of a forming die.
After the size of the die core is increased, the manufacturing error of the numerical control machine tool is dispersed on the surface of the die core, particularly the die manufactured by domestic CNC processing has more visual influence, and the manual error of the die core grinding by the die bench worker at the later stage is also enlarged and accumulated along with the increase of a single die core and the error of the machine tool, so that the manufacturing error of the die core is not controlled effectively. This will directly affect the quality of the heat exchanger plates after pressing, and affect the final pressure resistance and sealing properties of the brazing sheet heat exchange. Meanwhile, careful comparison shows that the external dimensions of many brazed heat exchangers are consistent in width dimension, only the length dimension is changed, but a set of different forming dies are needed respectively, and the die investment cost is high.
In order to ensure the sealing performance and the pressure resistance of the brazing sheet type heat exchanger with larger size, the input cost of the die is reduced. The accuracy of the shaping of the plate must be effectively improved and controlled, which requires a reduction in the manufacturing errors of the cores, an improvement in the shaping accuracy of the dies, and a reduction in the number of dies in the overlapping area of the brazing sheet heat exchanger dimensions.
Disclosure of Invention
The invention aims to provide a modularized brazing plate type heat exchanger forming die, which aims at overcoming the defects of the prior art, according to the characteristic that the width and the size of most brazing plate type heat exchangers are basically consistent in the overall dimension, an upper die core and a lower die core are designed into split splicing structures, the upper die core and the lower die core are respectively limited in the upper die frame and the lower die frame, the upper die core and the lower die core are divided into independent modules corresponding to each other according to the same rule by utilizing the principle of 'specific parts and the same pattern', namely, each independent module on the upper die core corresponds to one independent module on the lower die core, and the patterns are reasonably butted after the extraction and the increase among the independent modules on the premise of using the same auxiliary die frame, so that the pressing of the plates of the brazing plate type heat exchangers with different models is realized. Because the processing precision and the grinding precision of a single independent module are easy to ensure, compared with the traditional integral type mould core, the mould core of the split type splicing structure has the advantages that the processing precision and the grinding precision are greatly improved, and the manufacturing precision and the quality of the brazing plate type heat exchanger plate are further ensured.
In order to solve the problems, the invention provides the following technical scheme:
the utility model provides a modular brazing sheet type heat exchanger forming die, includes mould fixed plate, lower mould fixed plate, goes up mold core and lower mold core and be the rectangle structure that the size is the same, upward install the last mould frame that is used for fixing a position the mold core on the mould fixed plate, go up the mold core setting in the frame of last mould frame and be connected with last mould fixed plate, two long avris of going up the mold core hug closely with the medial side of last mould frame, install the lower mould frame that is used for fixing a position the lower mold core on the lower mould fixed plate, lower mold core setting is in the frame of lower mould frame and be connected with the lower mould fixed plate, two long avris of lower mold core hugs closely with the medial side of lower mould frame, go up mold core and lower mold core are split type mosaic structure.
Preferably, the upper mold core and the lower mold core each include a plurality of independent modules divided in a length direction, the independent modules of the upper mold core are slidable in the upper mold frame with respect to the upper mold fixing plate, and the independent modules of the lower mold core are slidable in the lower mold frame with respect to the lower mold fixing plate.
Preferably, the two short sides of the upper die frame are screw-fitted with upper fastening bolts which are arranged perpendicularly to the short sides of the upper die frame and extend into the frame against the short sides of the upper die core.
Preferably, the two short sides of the lower frame are in threaded fit with lower fastening bolts which are respectively arranged perpendicular to the ends of the lower frame and extend into the frame to abut against the short sides of the lower mold core.
Preferably, one side of the two long sides of the upper mold core, which is clung to the upper mold fixing plate, is provided with an outwards extending rib, and the upper mold frame is provided with a compression groove matched with the rib on the upper mold core.
Preferably, the upper die frame is fixedly connected with the upper die fixing plate through bolts.
Preferably, one side of the two long sides of the lower mold core, which is clung to the lower mold fixing plate, is provided with an outwards extending rib, and the lower mold frame is provided with a compression groove matched with the rib on the lower mold core.
Preferably, the lower die frame is fixedly connected with the lower die fixing plate through bolts.
Preferably, two sides of the short side of the upper mold core are respectively provided with an upper positioning block, and the outer sides of the upper positioning blocks are tightly pressed by an upper fastening bolt.
Preferably, two sides of the short side of the lower mold core are respectively provided with a lower positioning block, and the outer sides of the lower positioning blocks are tightly pressed by lower fastening bolts.
The beneficial effects are that:
(1) Under the same auxiliary mould frame, the brazing plate heat exchanger plates of different types can be pressed only by extracting or adding the independent modules, the number of single-product forming moulds is greatly reduced, and the input cost of the moulds is greatly reduced.
(2) The maintenance cost of the molds connected in series due to the reduction of the number of the molds can be greatly reduced, and the utilization rate of the press machine can be greatly improved.
(3) After the traditional integral mold core is improved into the mold core with the split splicing structure, the processing precision and the grinding precision of each independent module are improved and controlled, and the precision of the forming mold is greatly improved.
(4) The dimensional accuracy and the form tolerance of the formed heat exchange plate are accurately controlled, and the quality of the plate is high. The pressure resistance and sealing performance of the assembled large-size brazing sheet heat exchanger are enhanced and controlled.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic perspective view of the upper mold core of the present invention without withdrawing the independent modules;
FIG. 3 is a schematic perspective view of the upper mold core in the state of withdrawing the independent modules in the present invention;
FIG. 4 is a schematic perspective view of the lower mold core of the present invention without withdrawing the independent modules;
FIG. 5 is a schematic perspective view of the lower mold core in the state of withdrawing the independent module in the present invention;
FIG. 6 is a schematic view of the installation of a lower mold core and a lower mold frame in the present invention;
reference numerals illustrate: the upper die fixing plate 1, the lower die fixing plate 2, the upper die core 3, the lower die core 4, the upper die frame 5, the lower die frame 6, the upper fastening bolts 7, the lower fastening bolts 8, the ribs 9, the upper positioning blocks 10 and the lower positioning blocks 11.
Detailed Description
Specific embodiments of the invention are described in further detail below with reference to the drawings and examples of the specification:
referring to fig. 1 to 5, a modular brazing sheet type heat exchanger forming mold comprises an upper mold fixing plate 1, a lower mold fixing plate 2, an upper mold core 3 and a lower mold core 4, wherein the upper mold core 3 and the lower mold core 4 are of rectangular structures with the same size, an upper mold frame 5 for positioning the upper mold core 3 is arranged on the upper mold fixing plate 1, the upper mold core 3 is arranged in a frame of the upper mold frame 5 and is connected with the upper mold fixing plate 1, two long side sides of the upper mold core 3 are tightly attached to the inner side of the upper mold frame 5, a lower mold frame 6 for positioning the lower mold core 4 is arranged on the lower mold fixing plate 2, the lower mold core 4 is arranged in the frame of the lower mold frame 6 and is connected with the lower mold fixing plate 2, and two long side sides of the lower mold core 4 are tightly attached to the inner side of the lower mold frame 6, and the upper mold core 3 and the lower mold core 4 are of split type splicing structures.
The upper mold core 3 and the lower mold core 4 each comprise a plurality of independent modules divided along the length direction, the independent modules of the upper mold core 3 can slide in the upper mold frame 5 relative to the upper mold fixing plate 1, and the independent modules of the lower mold core 4 can slide in the lower mold frame 6 relative to the lower mold fixing plate 2.
According to the characteristic that the width dimension of the upper mold core 3 and the lower mold core 4 are basically consistent in the overall dimension, the upper mold core 3 and the lower mold core 4 are designed into split splicing structures, the upper mold core 3 and the lower mold core 4 are respectively limited in the upper mold frame 5 and the lower mold frame 6, the upper mold core 3 and the lower mold core 4 are divided into independent modules corresponding to each other according to the same rule by utilizing the principle of 'specific parts and the same patterns', namely, each independent module on the upper mold core 3 corresponds to one independent module on the lower mold core 4, and the patterns are reasonably butted after being extracted and added among the independent modules on the premise of using the same auxiliary mold frame, so that the pressing of the plates of the brazing plate heat exchangers with different models is realized. Because the processing precision and the grinding precision of a single independent module are easy to ensure, compared with the traditional integral type mould core, the mould core of the split type splicing structure has the advantages that the processing precision and the grinding precision are greatly improved, and the manufacturing precision and the quality of the brazing plate type heat exchanger plate are further ensured.
It should be noted that when the independent modules are pulled out from the upper mold core 3 and the lower mold core 4, the independent modules at the same position are required to be correspondingly pulled out.
The two short sides of the upper die frame 5 are in threaded fit with upper fastening bolts 7, and the upper fastening bolts 7 are arranged perpendicular to the short sides of the upper die frame 5 and extend into the frame to abut against the short side sides of the upper die core 3.
The two short sides of the lower frame are in threaded fit with lower fastening bolts 8, and the ends of the lower fastening bolts 8 perpendicular to the lower frame are respectively arranged and extend into the frame to abut against the short sides of the lower mold core 4.
The independent modules are only changed in length and size of the upper mold core 3 and the lower mold core 4, and are usually taken as an example, the positions of the other independent modules are required to be adjusted after the independent modules are taken out to fill the gap after the independent modules are taken out, and the butt joint smoothness of patterns on the upper mold core 3 and the lower mold core 4 is ensured. The pressure balance of the pressed plate is considered, namely, the mold core formed by splicing the rest independent modules is ensured to be positioned at the pressure center of the mold. The upper fastening bolts 7 and the lower fastening bolts 8 are screwed to ensure smooth patterns at the spliced positions after being pulled out, and the screwing depth of the upper fastening bolts 7 on the two sides of the upper die frame 5 is the same to ensure that the recombined upper die core 3 is positioned at the pressure center of the die; the same ensures that the recombined lower die core 4 is positioned in the pressure center of the die by ensuring that the screwing depths of the lower fastening bolts 8 on the two sides of the lower die block are the same, and also ensures that the recombined lower die core 4 and the upper die core 3 are aligned.
In the invention, the upper mold core 3 and the lower mold core 4 are required to be separated according to actual needs or independent modules are added to change the length sizes of the upper mold core 3 and the lower mold core 4, so that the upper mold core 3 and the lower mold core 4 are directly fixedly connected with the upper mold fixing plate 1 or the lower mold fixing plate 2 without bolts.
Referring to fig. 6, the manner of fixing the upper core 3 and the lower core 4 in the present invention will be described by way of example of the installation of the lower core 4.
One side of the two long sides of the upper mold core 3, which is tightly attached to the upper mold fixing plate 1, is provided with an outwardly extending rib 9, and the upper mold frame 5 is provided with a pressing groove matched with the rib 9 on the upper mold core 3.
The upper die frame 5 is fixedly connected with the upper die fixing plate 1 through bolts.
One side of the two long sides of the lower mold core 4, which is clung to the lower mold fixing plate 2, is provided with an outwardly extending rib 9, and the lower mold frame 6 is provided with a pressing groove matched with the rib 9 on the lower mold core 4.
The lower die frame 6 is fixedly connected with the lower die fixing plate 2 through bolts.
In the invention, the upper die frame 5 is used as a compressing piece for the upper die core 3, the upper die core 3 is compressed on the upper die fixing plate 1, the lower die frame 6 is used for compressing the lower die core 4 on the lower die fixing plate 2, after the independent modules are extracted, other independent modules move to the center of the die by screwing the upper fastening bolts 7 and the lower fastening bolts 8, and the ribs 9 slide in the compressing grooves to play the role of guide strips.
An upper positioning block 10 is respectively arranged on two sides of the short side of the upper mold core 3, and an upper fastening bolt 7 presses the outer side of the upper positioning block 10.
Two sides of the short side of the lower mold core 4 are respectively provided with a lower positioning block 11, and the lower fastening bolt 8 presses the outer side of the lower positioning block 11.
Preferably, an upper positioning block 10 is respectively arranged at two sides of a short side of the upper mold core 3, the front end of an upper fastening bolt 7 presses the outer side of the upper positioning block 10, a lower positioning block 11 is respectively arranged at two sides of a short side of the lower mold core 4, the front end of a lower fastening bolt 8 presses the outer side of the lower positioning block 11, after modules in the upper mold core 3 and the lower mold core 4 are separated, lateral adjustment and fine adjustment are respectively carried out by screwing the upper fastening bolt 7 and the lower fastening bolt 8 to press the outer sides of the upper positioning block 10 and the lower positioning block 11, so that the residual modules in the separated upper mold core 3 and lower mold core 4 fill the separated residual space, the upper mold core 3 and the lower mold core 4 are recombined into a complete mold core, and the upper mold core 3 and the lower mold core 4 after re-splicing are ensured to be positioned in the pressure center of the mold.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention are still within the scope of the technical solutions of the present invention.
Claims (7)
1. The utility model provides a modular brazing sheet type heat exchanger forming die, includes mould fixed plate (1), lower mould fixed plate (2), goes up mold core (3) and lower mold core (4) for the rectangle structure that the size is the same, its characterized in that: an upper die frame (5) for positioning an upper die core (3) is arranged on the upper die fixing plate (1), the upper die core (3) is arranged in the frame of the upper die frame (5) and is connected with the upper die fixing plate (1), two long side sides of the upper die core (3) are clung to the inner side of the upper die frame (5), a lower die frame (6) for positioning a lower die core (4) is arranged on the lower die fixing plate (2), the lower die core (4) is arranged in the frame of the lower die frame (6) and is connected with the lower die fixing plate (2), two long side sides of the lower die core (4) are clung to the inner side of the lower die frame (6), and the upper die core (3) and the lower die core (4) are of split type splicing structures;
the upper die core (3) and the lower die core (4) comprise a plurality of independent modules which are divided along the length direction, the independent modules of the upper die core (3) can slide in the upper die frame (5) relative to the upper die fixing plate (1), and the independent modules of the lower die core (4) can slide in the lower die frame (6) relative to the lower die fixing plate (2);
the two short sides of the upper die frame (5) are in threaded fit with upper fastening bolts (7), and the upper fastening bolts (7) are perpendicular to the short sides of the upper die frame (5) and extend into the frame to abut against the short sides of the upper die core (3); the two short sides of the lower die frame (6) are in threaded fit with lower fastening bolts (8), and the lower fastening bolts (8) are perpendicular to the short sides of the lower die frame (6) and extend into the frame to abut against the short sides of the lower die core (4);
the pressing of the brazing sheet heat exchanger plates of different types is accomplished by extraction or addition of separate modules.
2. A modular brazing sheet heat exchanger forming die according to claim 1 wherein: one side of the two long sides of the upper mold core (3) which is clung to the upper mold fixing plate (1) is provided with an outwards extending rib (9), and the upper mold frame (5) is provided with a compression groove matched with the rib (9) on the upper mold core (3).
3. A modular brazing sheet heat exchanger forming die according to claim 2 wherein: the upper die frame (5) is fixedly connected with the upper die fixing plate (1) through bolts.
4. A modular brazing sheet heat exchanger forming die according to claim 3 wherein: one side of the two long sides of the lower mold core (4) which is clung to the lower mold fixing plate (2) is provided with an outwards extending rib (9), and the lower mold frame (6) is provided with a compression groove matched with the rib (9) on the lower mold core (4).
5. A modular brazing sheet heat exchanger forming die according to claim 4 wherein: the lower die frame (6) is fixedly connected with the lower die fixing plate (2) through bolts.
6. A modular brazing sheet heat exchanger forming die according to claim 5 wherein: an upper positioning block (10) is respectively arranged on two sides of the short side of the upper mold core (3), and an upper fastening bolt (7) presses the outer side of the upper positioning block (10).
7. A modular brazing sheet heat exchanger forming die according to claim 6 wherein: two sides of the short side of the lower mold core (4) are respectively provided with a lower positioning block (11), and the lower fastening bolt (8) presses the outer side of the lower positioning block (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710893541.5A CN107649579B (en) | 2017-09-28 | 2017-09-28 | Modular brazing plate type heat exchanger forming die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710893541.5A CN107649579B (en) | 2017-09-28 | 2017-09-28 | Modular brazing plate type heat exchanger forming die |
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| Publication Number | Publication Date |
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| CN107649579A CN107649579A (en) | 2018-02-02 |
| CN107649579B true CN107649579B (en) | 2024-02-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109047434A (en) * | 2018-09-14 | 2018-12-21 | 江苏同生特钢制造有限公司 | A kind of stamping device of the special steel casting convenient for fixation |
| CN113714393B (en) * | 2021-09-03 | 2024-02-02 | 广东安居宝数码科技股份有限公司 | Edge covering mold, using method and edge covering frame |
| CN115415371A (en) * | 2022-10-10 | 2022-12-02 | 中联重科安徽工业车辆有限公司 | Forklift side plate profiling mold |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1094839A (en) * | 1996-09-26 | 1998-04-14 | Mazda Motor Corp | Method and device for punching of plate |
| CN207414126U (en) * | 2017-09-28 | 2018-05-29 | 宁波特美科技有限公司 | A kind of modular brazed-plate heat exchanger molding die |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6036555B2 (en) * | 2013-05-29 | 2016-11-30 | トヨタ紡織株式会社 | Press mold |
| JP5987784B2 (en) * | 2013-05-29 | 2016-09-07 | トヨタ紡織株式会社 | Press mold |
| JP6561608B2 (en) * | 2015-06-15 | 2019-08-21 | トヨタ紡織株式会社 | Press mold equipment |
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2017
- 2017-09-28 CN CN201710893541.5A patent/CN107649579B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1094839A (en) * | 1996-09-26 | 1998-04-14 | Mazda Motor Corp | Method and device for punching of plate |
| CN207414126U (en) * | 2017-09-28 | 2018-05-29 | 宁波特美科技有限公司 | A kind of modular brazed-plate heat exchanger molding die |
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