CN114346355A - Micro-fine tube diaphragm assembling, positioning and welding tool based on S-shaped positioning wires - Google Patents
Micro-fine tube diaphragm assembling, positioning and welding tool based on S-shaped positioning wires Download PDFInfo
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- CN114346355A CN114346355A CN202210044213.9A CN202210044213A CN114346355A CN 114346355 A CN114346355 A CN 114346355A CN 202210044213 A CN202210044213 A CN 202210044213A CN 114346355 A CN114346355 A CN 114346355A
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Abstract
The invention discloses a micro-fine tube membrane assembling, positioning and welding tool based on an S-shaped positioning wire, which comprises: the device comprises an upper positioning mechanism, an upper positioning disc, an upright post, a lower positioning disc and a lower positioning mechanism; the upper positioning plate is supported on the lower positioning plate through more than three upright posts, and the more than three upright posts are uniformly arranged along the circumferential direction of the plate body; the upper positioning disc and the lower positioning disc are respectively provided with an upper positioning mechanism and a lower positioning mechanism which are used for being connected with a plurality of S-shaped positioning wires together and realizing the tensioning of each S-shaped positioning wire; the S-shaped positioning wire is used for assembling, positioning and welding the microtube membranes, the positioning wire is manufactured by uniformly pressing a positioning wire blank into a plurality of C-shaped grooves on two sides of the positioning wire blank respectively along the axial direction through an S-shaped positioning wire forming tool, and the C-shaped grooves on the two sides are arranged in a staggered mode.
Description
Technical Field
The invention relates to the technical field of engine manufacturing, in particular to a micro-fine tube diaphragm assembling, positioning and welding tool based on an S-shaped positioning wire.
Background
As shown in FIG. 1, the microtube membranes are important components for the self-cooling of the composite precooling engine, each group of the microtube membranes is formed by 880 to 1000 involute-shaped microtubes (as shown in FIG. 2) with the diameter of 1mm, the wall thickness of 0.05mm and the length of 900 to 1000mm and gas collecting assemblies at two ends of the microtube membranes through brazing, and the assembly and welding of the microtube membranes are an international problem. At present, many manufacturers in China develop the engine research, so that the research on the assembling, brazing and welding technology of the micro-tube membrane is very important.
The micro-tube has thin and fragile wall and is easy to deform, and the purpose of accurate positioning of thousands of micro-tubes in space is the tool design; the assembly precision requirement of the micro-fine tubes is high, the micro-fine tubes are arranged in a 4 x 400 matrix staggered manner, as shown in FIG. 3, the row spacing of the micro-fine tubes is 0.25mm, and the line spacing is 1mm, so that more precise positioning precision is required, the row positioning precision of the tool can reach +/-0.1 mm, and the line positioning precision can reach +/-0.15 mm; the assembly precision puts forward higher requirement to the frock design, and it is very necessary to design one set of microtube diaphragm that assembles conveniently, the location is accurate, the brazing filler metal application of being convenient for assembly fixed-position welding frock of brazing.
Disclosure of Invention
In view of the above, the invention provides an S-shaped positioning wire-based micro-capillary membrane assembling, positioning and welding tool, which is used for assembling, positioning and welding micro-capillary membranes actively cooled by a composite precooling engine, and can accurately assemble thousands of micro-capillaries spatially, thereby solving the problem of accurately positioning and welding thousands of micro-capillaries.
The technical scheme of the invention is as follows: the utility model provides a microtube diaphragm assembly fixed-position welding frock based on S-shaped locating wire, includes: the device comprises an upper positioning mechanism, an upper positioning disc, an upright post, a lower positioning disc and a lower positioning mechanism;
the upper positioning plate is supported on the lower positioning plate through more than three upright posts, and the more than three upright posts are uniformly arranged along the circumferential direction of the plate body; the upper positioning disc and the lower positioning disc are respectively provided with an upper positioning mechanism and a lower positioning mechanism which are used for being connected with a plurality of S-shaped positioning wires together and realizing the tensioning of each S-shaped positioning wire; the S-shaped positioning wire is used for assembling, positioning and welding the microtube membranes, the positioning wire is manufactured by uniformly pressing a positioning wire blank into a plurality of C-shaped grooves on two sides of the positioning wire blank respectively along the axial direction through an S-shaped positioning wire forming tool, and the C-shaped grooves on the two sides are arranged in a staggered mode.
Preferably, three upright posts are supported between the upper positioning plate and the lower positioning plate.
Preferably, the positioning wire blank adopts GH99 steel wire with the diameter of phi 1 mm.
Preferably, two ends of each S-shaped positioning wire are respectively provided with an upper positioning sheet and a lower positioning sheet which are respectively connected with the upper positioning mechanism and the lower positioning mechanism.
Preferably, the upper positioning plate is provided with a square hole, and the lower positioning plate is provided with a round hole.
Preferably, a tensioning mechanism is arranged at a position, corresponding to each S-shaped positioning wire, on the upper positioning mechanism, so that each S-shaped positioning wire is tensioned independently.
Preferably, the S-shaped positioning wire forming tool comprises: the upper forming module and the lower forming module are installed oppositely, installation holes are formed in the opposite ends of the upper forming module and the lower forming module and used for respectively installing the upper forming module and the lower forming module in an embedded mode, screw holes are respectively formed in the opposite ends of the upper forming module and the lower forming module and used for penetrating screws, and the upper forming module, the lower forming module and the lower forming module are respectively fastened into a whole; the opposite end surfaces of the upper forming module and the lower forming module are both C-shaped convex surfaces, and the C-shaped protrusions on the two end surfaces are arranged in a staggered manner and used for pressing the positioning wire blank pressed between the upper forming module and the lower forming module into an S-shaped positioning wire with a plurality of C-shaped grooves on both sides; wherein, the two ends of the positioning wire blank are respectively tensioned by a positioning pin and a hook and are arranged at the two ends of the length direction of the lower template or the upper template.
Preferably, the hardness of the upper forming module and the lower forming module is higher than that of the upper template and the lower template.
Preferably, the couple is installed in the tip of lower bolster or cope match-plate pattern through the adaptor of two L types, the adaptor of two L types is adaptor I and adaptor II respectively, the vertical section at adaptor I is fixed to the couple, the tip at lower bolster or cope match-plate pattern is fixed to the vertical section of adaptor II, be equipped with more than two locating holes along length direction on the horizontal segment of adaptor II, sliding fit on the horizontal segment of adaptor II of adaptor I, and can pass through bolt-up sliding to different locating hole department, be used for the S-shaped locating wire of suppression different length.
Preferably, the upper positioning mechanism is arranged on the upper positioning plate, and the lower positioning mechanism is arranged on the lower positioning plate and can be adjusted along the radial direction of the plate body.
Has the advantages that:
1. the diaphragm assembling, positioning and welding tool is used for assembling, positioning and welding the micro-fine tube diaphragm actively cooled by the composite precooling engine, and can ensure that the space positions of thousands of micro-fine tubes in an involute shape are accurately positioned; because the welding flux is assembled and coated in sequence, the positioned micro-tube is always in an open environment, the operation is convenient, the positioning is reliable, and a solid foundation is laid for the development of a composite precooling engine and similar engines; compared with a hole plate type positioning mode, the assembling, positioning and welding tool has the advantages that the mode that the S-shaped positioning wire is adopted to position the micro-tube is adopted, so that local stress concentration is avoided, the product quality stability is improved, and meanwhile, the weight reduction effect is realized; compared with a comb single-tooth oblique line shape and position mode, the assembling efficiency is improved by more than 40% by adopting a mode of positioning the microtube by the S-shaped positioning wire, the positioning is stable after assembling, the problem of creep elongation does not occur after tensioning through examination, and subsequent shape correction is not needed; the reasonable structure and reliable positioning of the tool meet the brazing positioning requirement, the qualified micro-fine tube membrane product can be successfully processed, and the product precision meets the design requirement of the membrane.
2. The two ends of the S-shaped positioning wire are respectively provided with the square hole positioning piece and the round hole positioning piece, so that the S-shaped positioning wire can be distinguished conveniently, the S-shaped positioning wire is prevented from being used upside down, and the S-shaped positioning wire is matched with the square column hole shaft in the tensioning mechanism.
3. The specific design of the tensioning mechanism can realize the independent tensioning of each S-shaped positioning wire, so that the S-shaped positioning wires are in a tensioned state, the positioning is finished, and certain gravity is guaranteed to bear without influencing the positioning precision.
4. The S-shaped positioning wire is manufactured by adopting an S-shaped positioning wire forming tool, the S-shaped positioning wire forming tool is designed specifically to ensure that the S-shaped positioning wire has good forming consistency, so that the S-shaped positioning wire is ensured to have high assembling and positioning precision on the micro-pipe, and the assembled micro-pipe membrane product can meet the design requirements that the column positioning precision reaches +/-0.1 mm and the row positioning precision reaches +/-0.15 mm.
5. The hook of the S-shaped positioning wire forming tool is specifically designed, the length of the S-shaped positioning wire can be adjusted, and therefore S-shaped positioning wires with different lengths can be pressed.
6. The upper positioning mechanism and the lower positioning mechanism are designed to be radially adjustable on the upper positioning disc and the lower positioning disc, so that the S-shaped positioning wire can freely slide and be locked along the radial direction of the disc body, the positioning accuracy and the assembly clearance of the S-shaped positioning wire are ensured, the good accuracy consistency of the S-shaped positioning wire is further ensured, the uniform clearance between the microtubes and the S-shaped positioning wire is ensured, and the welding quality is favorably improved.
Drawings
FIG. 1 is a schematic diagram of a micro-microtube patch in a pre-cooling system.
FIG. 2 is a schematic diagram of a single microtube.
FIG. 3 is an enlarged view of a portion of the assembly of the microtube membranes.
Fig. 4 is a schematic structural diagram of the assembly positioning welding tool of the invention.
FIG. 5 is a schematic structural view of a single S-shaped positioning wire of the present invention.
FIG. 6 is a schematic diagram of the principle of the present invention for realizing two-way accurate positioning by combining a plurality of S-shaped positioning wires.
FIG. 7 is a schematic structural view of an S-shaped positioning wire forming tool in the present invention.
FIG. 8 is a schematic structural view of an upper positioning mechanism and a tightening mechanism according to the present invention.
Fig. 9 is a schematic structural view of the lower positioning mechanism of the present invention.
The device comprises a base, a support, a plurality of positioning mechanisms, a plurality of positioning rods, a plurality of hooks, a plurality of vertical columns, a plurality of S-shaped positioning columns, a plurality of S-shaped positioning wires, a plurality of S-shaped positioning units, a plurality of S-shaped positioning wires, a plurality of S-shaped positioning wires, a plurality of S-shaped positioning wires, a plurality of S-type positioning wires, a plurality of positioning wires.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The embodiment provides a microtube diaphragm assembly positioning welding frock based on S-shaped locating wire for the assembly positioning welding of the composite precooling engine active cooling' S microtube diaphragm can carry out accurate assembly in space with thousands of microtubes, has solved and has fixed a position and weld the problem with thousands of microtubes accurately.
As shown in fig. 4, the assembly positioning welding tool includes: the device comprises an upper positioning mechanism 1, an upper positioning disk 2, an upright post 3, a lower positioning disk 4 and a lower positioning mechanism 5;
the upper positioning plate 2 is supported on the lower positioning plate 4 through more than three (preferably three) upright posts 3, and the more than three upright posts 3 are uniformly arranged along the circumferential direction of the plate body; the upper positioning disk 2 and the lower positioning disk 4 are respectively provided with an upper positioning mechanism 1 and a lower positioning mechanism 5 which are used for connecting a plurality of S-shaped positioning wires 6 together and tensioning each S-shaped positioning wire 6 so as to assemble, position and weld the microtube membranes.
In this embodiment, as shown in fig. 5 and 6, the S-shaped positioning wire 6 is made by pressing GH99 steel wire (positioning wire blank) with a diameter of Φ 1mm uniformly into a plurality of C-shaped grooves along the axial direction on both sides (two radial opposite sides) of the steel wire through an S-shaped positioning wire forming tool, and the C-shaped grooves on both sides are arranged in a staggered manner; an upper positioning sheet and a lower positioning sheet are respectively welded at two ends of each S-shaped positioning wire 6, and two ends of each S-shaped positioning wire 6 are respectively connected with the upper positioning mechanism 1 and the lower positioning mechanism 5; a plurality of S-shaped positioning wires 6 are assembled and installed between the upper positioning mechanism 1 and the lower positioning mechanism 5 side by side, and axial positioning of each S-shaped positioning wire 6 and compression positioning between adjacent S-shaped positioning wires 6 can be realized.
In this embodiment, as shown in fig. 7, the S-shaped positioning wire forming tool includes: the device comprises an upper template 8, a lower template 9, an upper forming module 11 and a lower forming module 12, wherein the upper template 8 and the lower template 9 are oppositely installed, and the opposite ends are provided with installation holes for respectively installing the upper forming module 11 and the lower forming module 12 in an embedded manner, screw holes are respectively formed in the opposite ends of the upper template 8 and the lower template 9, so that screws can conveniently penetrate through the screw holes, and the upper forming module 11, the upper template 8, the lower forming module 12 and the lower template 9 are respectively fastened into a whole; the two opposite end faces of the upper forming module 11 and the lower forming module 12 are both C-shaped convex faces, and the C-shaped protrusions on the two end faces are arranged in a staggered manner, so that the positioning wire blank pressed between the two end faces is pressed into an S-shaped positioning wire (namely, the positioning wire with C-shaped grooves on both sides); the hardness of the upper forming module 11 and the lower forming module 12 is higher than that of the upper template 8 and the lower template 9; two ends of the positioning wire blank are respectively tensioned by a positioning pin 7 and a hook 10 and are arranged at two ends of the lower template 9 or the upper template 8 in the length direction.
In this embodiment, couple 10 installs in the tip of lower bolster 9 or cope match-plate pattern 8 through the adaptor of two L types, the adaptor of two L types is adaptor I and adaptor II respectively, couple 10 is fixed in the vertical section of adaptor I, the tip at lower bolster 9 or cope match-plate pattern 8 is fixed to the vertical section of adaptor II, be equipped with more than two (preferably 5) locating holes along length direction on the horizontal segment of adaptor II, sliding fit is gone up at the horizontal segment of adaptor II to the horizontal segment of adaptor I, and can pass through bolt fastening at different locating holes that slide, thereby can suppress out the S-shaped locating wire 6 of different length.
In this embodiment, as shown in fig. 8, a tensioning mechanism 13 is disposed at a position corresponding to each S-shaped positioning wire 6 on the upper positioning mechanism 1, so as to individually tension each S-shaped positioning wire 6, so that the S-shaped positioning wires 6 are in a tensioned state, complete positioning, and ensure that a certain gravity is borne without affecting positioning accuracy.
In this embodiment, in order to facilitate differentiation and prevent use reversal, a square hole is formed in the upper positioning plate, a round hole is formed in the lower positioning plate, and meanwhile, the square hole in the upper positioning plate can be axially matched with the square column hole in the tensioning mechanism 13, as shown in fig. 9, the lower positioning plate can be directly sleeved on the mounting screw and is pressed through the nut.
In this embodiment, the upper positioning mechanism 1 is arranged on the upper positioning plate 2, and the lower positioning mechanism 5 is arranged on the lower positioning plate 4, which can be adjusted along the radial direction of the plate body, so that the S-shaped positioning wire 6 is located at the preset position.
When in use, the embodiment adopts five rows of S-shaped positioning wires 6 arranged along an involute, and the specific assembling, positioning and welding method comprises the following steps:
step one, two ends of a row of S-shaped positioning wires 6 at the innermost side are respectively arranged on an upper positioning mechanism 1 and a lower positioning mechanism 5, and C-shaped groove openings at two sides of each S-shaped positioning wire 6 face inwards and outwards respectively; wherein, the direction close to the circle center of the upper positioning disk 2 or the lower positioning disk 4 is the inner side, and the direction far away from the circle center of the upper positioning disk 2 or the lower positioning disk 4 is the outer side;
step two, different microtubes in a group of microtubes on the innermost side of the microtube membrane are sequentially placed in C-shaped grooves with outward openings at different height positions of the S-shaped positioning wires 6 on the innermost side, and a microtube is placed in all the C-shaped grooves of the S-shaped positioning wires 6 in the same height direction, so that the gap between each microtube and the inner wall surface of each C-shaped groove is uniformly adjusted; wherein, 400 microtubes can be arranged in the height direction of each row of S-shaped positioning wires 6;
step three, respectively installing two ends of a second row of S-shaped positioning wires 6 on the upper positioning mechanism 1 and the lower positioning mechanism 5 according to the mode of the step one, wherein one side of the second row of S-shaped positioning wires compresses the first group of micro-tubes, and the C-shaped groove on the other side is used for positioning the second group of micro-tubes;
step four, coating brazing solder between the first group of micro-tubes and the corresponding S-shaped positioning wires 6, and placing the second group of micro-tubes according to the mode of the step two after the first-time coating of the solder is finished;
and step five, sequentially reciprocating the step one to the step four, after the fourth group of micro-tubes are placed, pressing the fifth row of S-shaped positioning wires 6 on the fourth group of micro-tubes, and then finishing the coating of the brazing material, thereby finishing all the operations of assembling, positioning and welding the micro-tube membranes which are arranged in a 4 x 400 matrix staggered manner.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a microtube diaphragm assembly fixed-position welding frock based on S-shaped locating wire which characterized in that includes: the device comprises an upper positioning mechanism (1), an upper positioning disc (2), an upright post (3), a lower positioning disc (4) and a lower positioning mechanism (5);
the upper positioning plate (2) is supported on the lower positioning plate (4) through more than three upright posts (3), and the more than three upright posts (3) are uniformly arranged along the circumferential direction of the plate body; the upper positioning disc (2) and the lower positioning disc (4) are respectively provided with an upper positioning mechanism (1) and a lower positioning mechanism (5) which are used for connecting a plurality of S-shaped positioning wires (6) together and realizing the tensioning of each S-shaped positioning wire (6); the S-shaped positioning wire (6) is used for assembling, positioning and welding the microtube membranes, is manufactured by uniformly pressing a positioning wire blank into a plurality of C-shaped grooves along the axial direction on two sides of the positioning wire blank through an S-shaped positioning wire forming tool, and the C-shaped grooves on the two sides are arranged in a staggered mode.
2. The micro-tube membrane assembling, positioning and welding tool based on the S-shaped positioning wires as claimed in claim 1, wherein three columns (3) are supported between the upper positioning plate (2) and the lower positioning plate (4).
3. The micro-tube membrane assembling and positioning welding tool based on the S-shaped positioning wires as claimed in claim 1, wherein GH99 steel wires with the diameter of phi 1mm are adopted as positioning wire blanks.
4. The micro-tube membrane assembling, positioning and welding tool based on the S-shaped positioning wires as claimed in claim 1, wherein an upper positioning piece and a lower positioning piece are respectively arranged at two ends of each S-shaped positioning wire (6) and are respectively connected with an upper positioning mechanism (1) and a lower positioning mechanism (5).
5. The assembly positioning and welding fixture for microtube membranes based on S-shaped positioning wires according to claim 4, wherein a square hole is formed in the upper positioning plate, and a round hole is formed in the lower positioning plate.
6. The micro-tube membrane assembling, positioning and welding tool based on the S-shaped positioning wires as claimed in claim 1, wherein a tensioning mechanism (13) is arranged at a position, corresponding to each S-shaped positioning wire (6), on the upper positioning mechanism (1) to achieve independent tensioning of each S-shaped positioning wire (6).
7. The micro-tube membrane assembling, positioning and welding fixture based on the S-shaped positioning wires according to any one of claims 1 to 6, wherein the S-shaped positioning wire forming fixture comprises: the device comprises an upper template (8), a lower template (9), an upper forming module (11) and a lower forming module (12), wherein the upper template (8) and the lower template (9) are oppositely installed, and the opposite end is provided with an installation hole for respectively installing the upper forming module (11) and the lower forming module (12) in an embedded mode, and the opposite end of the upper template (8) and the lower template (9) is respectively provided with a screw hole for penetrating a screw, so that the upper forming module (11) and the upper template (8) as well as the lower forming module (12) and the lower template (9) are respectively fastened into a whole; the opposite end surfaces of the upper forming module (11) and the lower forming module (12) are both C-shaped convex surfaces, and the C-shaped protrusions on the two end surfaces are arranged in a staggered manner and used for pressing a positioning wire blank pressed between the upper forming module and the lower forming module into an S-shaped positioning wire with a plurality of C-shaped grooves on both sides; wherein, the two ends of the positioning wire blank are respectively tensioned by a positioning pin (7) and a hook (10) and are arranged at the two ends of the length direction of the lower template (9) or the upper template (8).
8. The micro-tube membrane assembling, positioning and welding tool based on the S-shaped positioning wires as claimed in claim 7, wherein the hardness of the upper forming module (11) and the lower forming module (12) is higher than that of the upper template (8) and the lower template (9).
9. The assembling, positioning and welding tool for the microtube membranes based on the S-shaped positioning wires as claimed in claim 7, wherein the hook (10) is installed at the end of the lower template (9) or the upper template (8) through two L-shaped adapters, the two L-shaped adapters are respectively an adapter I and an adapter II, the hook (10) is fixed at the vertical section of the adapter I, the vertical section of the adapter II is fixed at the end of the lower template (9) or the upper template (8), more than two positioning holes are formed in the horizontal section of the adapter II along the length direction, the horizontal section of the adapter I is in sliding fit on the horizontal section of the adapter II and can be fastened to different positioning holes through bolts in a sliding manner, and the S-shaped positioning wires (6) with different lengths are pressed.
10. The micro-tube membrane assembling, positioning and welding tool based on the S-shaped positioning wires as claimed in any one of claims 1 to 6, wherein the upper positioning mechanism (1) is arranged on the upper positioning plate (2) and the lower positioning mechanism (5) is arranged on the lower positioning plate (4) and can be adjusted along the radial direction of the plate body.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210044213.9A CN114346355B (en) | 2022-01-14 | 2022-01-14 | Positioning welding tool for assembling micro-fine tube membrane based on S-shaped positioning wire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210044213.9A CN114346355B (en) | 2022-01-14 | 2022-01-14 | Positioning welding tool for assembling micro-fine tube membrane based on S-shaped positioning wire |
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| CN114346355A true CN114346355A (en) | 2022-04-15 |
| CN114346355B CN114346355B (en) | 2023-10-13 |
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