CN114952112B - Manufacturing method of air deflector - Google Patents
Manufacturing method of air deflector Download PDFInfo
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- CN114952112B CN114952112B CN202210772048.9A CN202210772048A CN114952112B CN 114952112 B CN114952112 B CN 114952112B CN 202210772048 A CN202210772048 A CN 202210772048A CN 114952112 B CN114952112 B CN 114952112B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 49
- 238000003466 welding Methods 0.000 claims abstract description 156
- 238000000034 method Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 description 8
- 238000003825 pressing Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The application provides a manufacturing method of an air deflector, wherein the air deflector comprises an air deflector and a positioning block, and the air deflector is provided with a mounting hole for mounting the positioning block; the manufacturing method comprises the following steps: providing a manufacturing tool, the air guide piece and the positioning block; the manufacturing tool comprises a bottom plate and a limiting structure arranged on the bottom plate; a relief groove is formed in the bottom plate; the air guide piece is arranged on the surface of the bottom plate and limited by the limiting structure, and the mounting hole is communicated with the abdication groove; placing the positioning block in the abdication groove and the mounting hole; and welding the positioning blocks and the air guide plates to form the air guide plate. The application aims to solve the technical problem that the manufacturing precision of the air guide plate in the prior art is low.
Description
Technical Field
The application relates to the technical field of manufacturing of parts of generator sets, in particular to a manufacturing method of an air deflector.
Background
Along with the improvement of the single-machine capacity of the hydraulic generator, the temperature rise requirement of the rotor winding is also improved. Conventional cooling structures in the prior art have difficulty meeting the temperature rise requirements of the rotor windings. Therefore, the air guide plate is arranged in the magnetic yoke ventilating duct, so that the temperature rise requirement of the rotor winding is met by adopting an air forced cooling mode of inner and outer subareas. The air guide sheet is arranged in the air channel formed by stacking the magnetic yoke sheets so as to guide cold air to flow into the magnetic pole winding.
However, in the prior art, the manufacturing precision of the wind guiding plate is low, so that the installation precision is insufficient, and further, the cooling effect is not ideal, and the performance of the hydraulic generator is affected.
Disclosure of Invention
The application provides a manufacturing method of an air deflector, which aims at solving the technical problem of low manufacturing precision of an air deflector in the prior art.
The application provides a manufacturing method of an air deflector, which comprises the following steps:
providing a manufacturing tool, an air guide sheet and a positioning block; the manufacturing tool comprises a bottom plate and a limiting structure arranged on the bottom plate; a relief groove is formed in the bottom plate; the air guide piece is provided with a mounting hole for mounting the positioning block;
the air guide piece is placed on the surface of the bottom plate, limited by the limiting structure and communicated with the abdication groove;
placing the positioning block in the abdication groove and the mounting hole;
and welding the positioning blocks and the air guide plates to form the air guide plate.
Optionally, the manufacturing tool further comprises a fixed block and a tightening block movably arranged on the fixed block, and the fixed block is fixedly connected to the bottom plate; after the positioning block is placed in the abdication groove and the mounting hole and before the positioning block and the air guide sheet are welded to form the air guide plate, the manufacturing method further comprises the following steps: and the positioning block is abutted against the air guide plate by the jacking block.
Optionally, the wind guiding piece comprises a windward end; the limiting structure comprises a baffle; the wind guide piece is arranged on the surface of the bottom plate and limited by the limiting structure, and the baffle is abutted against the windward end.
Optionally, the wind guiding piece comprises a first side wall and a second side wall, and the first side wall is connected with the second side wall through the windward end; the limiting structure further comprises at least two positioning columns; the wind guide piece is arranged on the surface of the bottom plate and limited by the limiting structure, and the wind guide piece further comprises: and utilizing a part of at least two positioning columns to abut against the first side wall, and utilizing a part of at least two positioning columns to abut against the second side wall.
Optionally, the positioning block comprises a first end face, a first side face and a second side face which are oppositely arranged; the mounting hole is provided with a first hole wall, a second hole wall and a third hole wall; when the positioning block is placed in the abdication groove and the mounting hole, the first end face is connected with the first hole wall, so that a first edge to be welded is formed between the positioning block and the air guide piece; the first side surface is connected with the second hole wall so that a second edge to be welded is formed between the positioning block and the air guide piece; the second side surface is connected with the third hole wall so that a third edge to be welded is formed between the positioning block and the air guide piece.
Optionally, the second to-be-welded edge and the third to-be-welded edge are symmetrically arranged with a perpendicular bisector of the first to-be-welded edge as a symmetry axis.
Optionally, the welding the positioning block and the air guiding sheet to form an air guiding plate includes:
determining a first welding point and a second welding point on the second to-be-welded side, determining a third welding point and a fourth welding point on the third to-be-welded side, and determining a fifth welding point, a sixth welding point and a seventh welding point on the first to-be-welded side; the first welding spot and the third welding spot are symmetrically arranged by taking the perpendicular bisector as a symmetrical axis, the second welding spot and the fourth welding spot are symmetrically arranged by taking the perpendicular bisector as a symmetrical axis, the sixth welding spot and the seventh welding spot are symmetrically arranged by taking the perpendicular bisector as a symmetrical axis, and the fifth welding spot is positioned on the perpendicular bisector; spot welding was performed in the following order: the first welding point, the fourth welding point, the third welding point, the second welding point, the fifth welding point, the sixth welding point and the seventh welding point.
Optionally, the welding the positioning block and the air guiding sheet to form an air guiding plate includes: respectively carrying out lap welding on the welding seams of the second to-be-welded edge and the third to-be-welded edge; the lap welding length of the second to-be-welded edge is equal to the edge length of the second to-be-welded edge, and the lap welding length of the third to-be-welded edge is equal to the edge length of the third to-be-welded edge; and carrying out lap welding on the welding seam of the first to-be-welded edge, wherein the lap welding length of the first to-be-welded edge is equal to half of the edge length of the first to-be-welded edge and is 1.5 times of the lap welding length of the second to-be-welded edge and 1.5 times of the lap welding length of the third to-be-welded edge.
Optionally, defining the depth of the relief groove as H, defining the thickness of the positioning block as D1, and defining the thickness of the air guiding sheet as D2, where the depth of the relief groove, the thickness of the positioning block, and the thickness of the air guiding sheet satisfy the following relation:
H＝(D1—D2)/2。
optionally, this application still provides a preparation frock for make the aviation baffle, include: the bottom plate is provided with a surface and is used for placing the air guide plate; the bottom plate is provided with a yielding groove for placing the positioning block; the limiting structure is arranged on the bottom plate; when the air guide piece is placed on the surface, the limiting structure limits the air guide piece, so that the mounting hole of the air guide piece can be communicated with the abdication groove, and the positioning block can be located in the abdication groove and the mounting hole at the same time.
The embodiment of the application provides a manufacturing method of an air deflector. The base plate is provided with the abdication groove, so that the air guide plate can be clung to the base plate when the positioning block is arranged in the mounting hole of the air guide plate, and the thickness direction of the air guide plate is vertical to the base plate. The air guide piece is placed on the surface of the bottom plate, so that the air guide piece is supported by the surface of the bottom plate, the thickness direction of the air guide piece is vertical to the surface, the air guide piece is limited in a preset area by the limiting structure, the mounting hole is communicated with the abdication groove, and when the positioning block is conveniently embedded into the abdication groove and the mounting hole, the verticality of the air guide piece and the positioning block is improved; and during welding, the air guide sheet and the positioning block can be kept relatively static. The manufacturing method of the air deflector can meet the requirement of improving the perpendicularity of the air deflector and the positioning block, and the manufacturing efficiency of the air deflector can be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a method for manufacturing an air deflector according to an embodiment of the present disclosure;
FIG. 2 is a schematic flow chart of a method for manufacturing an air deflector according to another embodiment of the present disclosure;
fig. 3 is a schematic flow chart of step S200 in fig. 1 or fig. 2;
FIG. 4 is a flowchart illustrating an embodiment of step S500 in FIG. 1 or FIG. 2;
FIG. 5 is a flow chart of another embodiment of step S500 in FIG. 1 or FIG. 2;
FIG. 6 is a schematic view of a state of the air deflector according to the embodiment of the present application;
FIG. 7 is a schematic structural diagram of a manufacturing tool according to an embodiment of the present disclosure;
FIG. 8 is a schematic structural view of an air guiding sheet according to an embodiment of the present disclosure;
FIG. 9 is a schematic structural view of a positioning block according to an embodiment of the present disclosure;
FIG. 10 is an analytical schematic of weld tensile stress of an embodiment of the present application;
FIG. 11 is a schematic diagram of a spot weld distribution of an embodiment of the present application;
FIG. 12 is a schematic illustration of a lap weld distribution of an embodiment of the present application.
List of reference numerals
| 10 | Manufacturing tool | 31 | First end surface |
| 11 | Bottom plate | 32 | First side surface |
| 12 | Limiting structure | 33 | Second side surface |
| 13 | Fixed block | 34 | Second end face |
| 14 | Jacking block | 41 | First edge to be welded |
| 121 | Baffle plate | 42 | Second edge to be welded |
| 122 | Positioning column | 43 | Third to-be-welded edge |
| 11a | Yield groove | 51 | First welding spot |
| 20 | Wind guiding sheet | 52 | Second welding spot |
| 20a | Mounting hole | 53 | Third welding spot |
| 20a-1 | First hole wall | 54 | Fourth welding spot |
| 20a-2 | Second hole wall | 55 | Fifth welding spot |
| 20a-3 | Third hole wall | 56 | Sixth welding spot |
| 30 | Positioning block | 57 | Seventh welding spot |
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to fall within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In this application, the term "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the invention. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes have not been described in detail so as not to obscure the description of the invention with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
The utility model provides a salient pole motor magnetic pole coil internal cooling wind-guiding device, includes rotor support, yoke subassembly and a plurality of magnetic pole, and the magnetic pole is hung and is adorned at yoke subassembly surface, and yoke subassembly's surface is connected with the rotor support. And a magnetic yoke ventilating channel is formed between the magnetic yoke sheets. In the pole coils of the magnetic poles, a through-flow channel is arranged on each layer of current carrying rows or between adjacent current carrying rows along the width direction of the current carrying rows. The air outlet of the magnetic yoke ventilating channel is divided into 2 air outlet channels by the air guide sheet, the 2 air outlet channels are adjacent to the inlets of the magnetic pole coil inner cooling ventilating channels at corresponding positions respectively, and then the air entering the magnetic yoke ventilating channel can be divided into two air streams which are blown into the magnetic pole coil inner cooling ventilating channels at corresponding positions respectively, so that the magnetic pole coils are cooled, and the cooling effect is achieved.
In the related prior art, the installation accuracy of wind guiding piece is low, leads to the wind effect of dividing of wind guiding piece not good, and then leads to there is the temperature difference between the magnetic pole coil, influences salient pole motor's performance. Therefore, the embodiment of the application provides an air deflector which comprises an air deflector and a positioning block. Through welding the locating piece on the air guide piece for when installing the air guide piece in the yoke air flue of yoke piece again, can utilize the locating piece to install the location, thereby improve the installation accuracy of air guide piece, improve the branch wind effect of air guide piece.
Because the magnetic yoke air duct is formed by two adjacent magnetic yoke sheets in the thickness direction, two supporting surfaces in the thickness direction of the air guide sheet need to be respectively abutted on the magnetic yoke sheets to form two independent air outlet ducts, thereby guiding air to flow into the magnetic pole coils according to a preset value and reducing air loss. When the positioning block is installed, the positioning block needs to be embedded into a preset installation hole on the magnetic yoke sheet, so that two supporting surfaces in the thickness direction of the air guide sheet need to be respectively abutted on the magnetic yoke sheet. Therefore, the perpendicularity requirements of the positioning block and the air guide piece are quite high, and the embodiment of the application provides a manufacturing method of the air guide plate, which aims to improve the perpendicularity between the air guide plate and the positioning block.
Specifically, the air guiding fin 20 and the positioning block 30 are separate parts manufactured separately. The air guide piece 20 is provided with a mounting hole 20a for mounting the positioning block 30. The mounting hole 20a matches the size and shape of the positioning block 30.
The embodiment of the application provides a manufacturing method of an air deflector, as shown in fig. 1, the manufacturing method comprises the following steps:
s100, a manufacturing tool 10, the air guide piece 20 and the positioning block 30 are provided. As shown in fig. 6 or 7, the manufacturing tool includes a bottom plate 11 and a limiting structure 12 disposed on the bottom plate 11. As shown in fig. 7, the bottom plate 11 is provided with a relief groove 11a.
Since the positioning block 30 needs to be provided to protrude from the air guide piece 20 in the thickness direction, in order to allow the air guide piece 20 to be closely attached to the bottom plate 11 when the positioning block 30 is mounted in the mounting hole 20a of the air guide piece 20, the bottom plate 11 is provided with a relief groove 11a for temporarily accommodating a part of the positioning block 30. And, the abdication groove 11a has a certain righting effect so as to meet the requirement of the verticality of the positioning block 30 and the air guide piece 20.
S200, placing the air guide piece 20 on the surface of the bottom plate 11, limiting the air guide piece by the limiting structure 12, and communicating the mounting hole 20a with the abdication groove 11a.
Placing the air guide sheet 20 on the surface of the base plate 11 such that the air guide sheet 20 is supported by the surface of the base plate 11 such that the thickness direction of the air guide sheet 20 is perpendicular to the surface; and the limit structure 12 limits the air guide piece 20 in a preset area, and communicates the mounting hole 20a with the abdication groove 11a, so that the positioning block 30 is conveniently embedded into the abdication groove 11a and the mounting hole 20a, and the air guide piece 20 can be kept relatively static during welding.
S300, the positioning block 30 is placed in the abdication groove 11a and the mounting hole 20a.
The positioning block 30 is embedded into the relief groove 11a, and a part of the positioning block 30 protrudes out of the surface of the air guide piece 20, which is abutted against the bottom plate 11, and extends into the mounting hole 20a, so that the positioning block 30 is located at a preset mounting position.
S500, welding the positioning block 30 and the air guide piece 20 to form the air guide plate.
A welding edge is formed between the positioning block 30 and the air guide piece 20, and the positioning block 30 and the air guide piece 20 are fixed into a whole by welding on the welding edge, so that the air guide plate is formed.
As an alternative implementation manner of the foregoing embodiment, as shown in fig. 6, the manufacturing tool further includes a fixing block 13 and a tightening block 14 movably disposed on the fixing block 13, where the fixing block 13 is fixedly connected to the bottom plate 11. Typically, the securing blocks 13 are secured to the base plate 11 by threaded fasteners. The fixed block 13 is provided with a threaded hole, and the jacking block 14 is provided with a threaded section matched with the threaded hole. Alternatively, the fixing block 13 is provided with a through hole; the jacking block 14 has a tension rod, spring and pressure plate. The pull rod is connected with the pressing plate, the pressing plate is connected with the spring, the spring is connected with the fixed block 13, the pull rod penetrates through the through hole from one side of the fixed block to the other side, and the pressing plate is used for pressing the positioning block 30.
After the positioning block 30 is placed in the relief groove 11a and the mounting hole 20a, before the step of welding the positioning block 30 and the air guide plate 20 to form the air guide plate, as shown in fig. 2, the manufacturing method further includes:
s400, the positioning block 30 is abutted against the air guide piece 20 by utilizing the jacking block 14.
After the positioning block 30 is embedded into the mounting hole 20a and the yielding groove 11a, the positioning block 30 is abutted against the air guide plate 20 by rotating the jacking block 14, so that the purpose of assembling the positioning block 30 and the air guide plate 20 is achieved. Or the pull rod is operated, and the elastic force of the spring acts on the positioning block 30 through the pressing plate, so that the positioning block 30 is abutted against the air guide piece 20, and the aim of assembling the positioning block 30 and the air guide piece 20 is fulfilled.
As an alternative to the above embodiments, the wind guiding fin 20 includes a windward end. As shown in fig. 8, the air guide 20 is generally V-shaped or U-shaped. The windward end is used for dividing the air in the magnetic yoke ventilating duct into two air flows. The windward end is understood to be the foremost end of the wind guiding fin 20 that acts with the airflow, and is the junction between the two side walls of the wind guiding fin 20. The limiting structure 12 includes a baffle 121, and the baffle 121 is fixedly connected with the bottom plate 11, such as welded or threaded connection. The baffle 121 is mainly used for limiting the air guiding piece 20, and placing the air guiding piece 20 in a preset area. As shown in fig. 3 and 6, the step of placing the air guiding plate 20 on the surface of the bottom plate 11 and limiting by the limiting structure 12 includes:
s210, the baffle plate 121 is abutted against the windward end. The baffle 121 limits the windward end of the wind guiding piece 20, and can limit the wind guiding piece 20 to move along the middle line direction thereof. In the embodiment of the present application, the baffle plate 121 and the fixing block 13 are disposed at intervals, and when the air guiding sheet 20 is placed on the bottom plate 11, the central line direction of the air guiding sheet 20 is parallel to the interval direction of the baffle plate 121 and the fixing plate, so that the air guiding plate is kept relatively fixed in the central line direction thereof.
As an alternative implementation of the foregoing embodiment, the wind guiding plate 20 includes a first side wall and a second side wall, where the first side wall is connected to the second side wall through the windward end; the first side wall and the second side wall are disposed crosswise, and the angle thereof is generally 30 ° to 70 °. The wind guiding plate 20 is of an integrated structure, and the windward end generally adopts a round corner structure, so that the airflow is smooth, and the radius R of the round corner of the windward end is generally R10-R100. The spacing structure 12 further includes at least two positioning posts 122. Typically, there are two positioning posts 122. The two positioning posts 122 are arranged in an isosceles triangle with the baffle 121 to define a preset position for placing the air deflector through three supporting positions, so that the relief groove 11a and the mounting hole 20a can communicate. Or the positioning columns 122 are multiple, the positioning columns 122 are divided into two groups, the first group is used for positioning the first side wall, and the second group is used for positioning the second side wall. The first set of positioning posts 122 are arranged in a linear array, as the first side wall is generally linear in configuration, and the first set of positioning posts 122 are arranged in a linear array. Similarly, the second set of positioning posts 122 is arranged in a linear array, since the second sidewall is generally linear, and the second set of positioning posts 122 is arranged in a linear array. Generally, the positioning columns 122 are welded on the surface of the base plate 11, and the positioning columns 122 may be cylindrical, semi-cylindrical, elliptic or square columns, and one side of the positioning columns for abutting against the first side wall or the second side wall is a smooth surface (a plane or a smooth curved surface). As shown in fig. 3, the step of placing the air guiding plate 20 on the surface of the bottom plate 11 and limiting by the limiting structure 12 includes:
s220, abutting the first side wall with at least a portion of two positioning posts 122,
s230, abutting the second sidewall with at least a portion of two positioning posts 122.
The positioning columns 122 are used for positioning the first side wall and the second side wall, so that the air guide piece 20 can be located in a preset area, and the air guide piece 20 can be limited to move in the direction perpendicular to the central line.
As an alternative to the above embodiment, as shown in fig. 9, the positioning block 30 includes a first end surface 31, a first side surface 32 and a second side surface 33 that are disposed opposite to each other. After the air deflector is mounted to the yoke air passage, the first side surface 32 and the second side surface 33 are spaced apart in the circumferential direction of the rotor bracket, and the first end surface 31 is disposed toward the air intake side. The positioning block 30 further has a second end surface 34, the second end surface 34 is disposed opposite to the first end surface 31, and the pressing block 14 acts on the second end surface 34 when the air guide plate is manufactured. After the air guide plate is mounted to the yoke air passage, the second end surface 34 is disposed toward the air outlet side. As shown in FIG. 8, the mounting hole 20a has a first hole wall 20a-1, a second hole wall 20a-2, and a third hole wall 20a-3. When the positioning block 30 is placed in the yielding groove 11a and the mounting hole 20a, the first end face 31 is connected with the first hole wall 20a-1, so that a first edge 41 to be welded is formed between the positioning block 30 and the air guiding plate 20; the first side 32 is connected with the second hole wall 20a-2, so that a second edge 42 to be welded is formed between the positioning block 30 and the air guiding plate 20; the second side 33 is connected to the third hole wall 20a-3, so that a third edge 43 to be welded is formed between the positioning block 30 and the air guiding plate 20. Because the positions of the first end face 31, the first side face 32 and the second side face 33 are different, a first to-be-welded edge 41, a second to-be-welded edge 42 and a third to-be-welded edge 43 with different positions are formed between the positioning block 30 and the air guiding piece 20. After welding, the positioning block 30 and the air guide piece 20 are provided with welding seams at three different positions, so that the positioning block 30 and the air guide piece 20 can be effectively and firmly welded. Moreover, since the air guide piece 20 is placed in the plane of the bottom plate 11, the first to-be-welded edge 41, the second to-be-welded edge 42 and the third to-be-welded edge 43 are located in the same plane, so that the perpendicularity of the positioning block 30 and the air guide piece 20 after welding meets the welding requirement.
As an alternative implementation of the foregoing embodiment, the second to-be-welded edge 42 and the third to-be-welded edge 43 are symmetrically disposed with respect to a perpendicular bisector of the first to-be-welded edge 41 as a symmetry axis. As shown in connection with fig. 10, the welding tensile stress in the direction parallel to the first end face 31 can be offset after welding. During welding, a second welding tensile stress f2 is generated at the second to-be-welded edge 42, and a third welding tensile stress f3 is generated at the third to-be-welded edge 43. Since the second to-be-welded edge 42 and the third to-be-welded edge 43 are symmetrically arranged with the perpendicular bisectors of the first to-be-welded edge 41 as symmetry axes, the welding tensile stresses of the second welding tensile stress f2 and the third welding tensile stress f3 in the direction parallel to the first end face 31 are greatly reversed, so that the welding tensile stresses can be mutually offset, and the distortion of the positioning block 30 due to the welding tensile stress in the direction parallel to the first end face 31 is avoided, and the tensile stress of the positioning block 30 and the air guiding plate 20 is reduced.
In some embodiments, the components of the second and third weld tensile stresses f2, f3 overlap in a direction perpendicular to the first end face 31. In order to reduce the level of the welding tensile stress in the direction perpendicular to the first end face 31, the first side to be welded 41 forms an acute angle with the second side to be welded 42 and the third side to be welded 43, so that the first welding tensile stress f1 generated on the first side to be welded 41 is opposite to the component forces of the second welding tensile stress f2 and the third welding tensile stress f3, and the level of the welding tensile stress in the direction perpendicular to the first end face 31 can be reduced.
In general, the weld design may be performed as follows: the component forces of the second and third welding tensile stresses f2, f3 in the direction perpendicular to the first end face 31 are preferably half the first welding tensile stress f 1. The component forces of the second welding tensile stress f2 and the third welding tensile stress f3 in the direction parallel to the first end face 31 are equally inverted. For example, structurally: the included angle between the first end face 31 and the first side face 32 and the second side face 33 is 60 degrees, and the first side face 32 and the second side face 33 are symmetrically arranged with the perpendicular bisector of the first end face 31; in terms of the weld structure, the weld positions of the second to-be-welded edge 42 and the third to-be-welded edge 43 are symmetrically arranged (for example, the lap welding length of the second to-be-welded edge 42 is equal to the edge length of the second to-be-welded edge 42, the lap welding length of the third to-be-welded edge 43 is equal to the edge length of the third to-be-welded edge 43, and the lap welding length of the first to-be-welded edge 41 is equal to half the edge length of the first to-be-welded edge 41 and is equal to the lap welding length of the second to-be-welded edge 42 and the lap welding length of the third to-be-welded edge 43).
As an alternative implementation of the foregoing embodiment, the specific step of welding the positioning block 30 and the air guiding plate 20 to form the air guiding plate, as shown in fig. 4 and 11, includes: a first welding point 51 and a second welding point 52 are determined at the second edge to be welded 42, a third welding point 53 and a fourth welding point 54 are determined at the third edge to be welded 43, and a fifth welding point 55, a sixth welding point 56 and a seventh welding point 57 are determined at the first edge to be welded 41; the first welding spot 51 and the third welding spot 53 are symmetrically arranged with the perpendicular bisector as a symmetry axis, the second welding spot 52 and the fourth welding spot 54 are symmetrically arranged with the perpendicular bisector as a symmetry axis, the sixth welding spot 56 and the seventh welding spot 57 are symmetrically arranged with the perpendicular bisector as a symmetry axis, and the fifth welding spot 55 is positioned on the perpendicular bisector; spot welding was performed in the following order: first, fourth, third, second, fifth, sixth and seventh welding spots 51, 54, 53, 52, 55, 56, 57. That is, during welding, the second to-be-welded edge 42 and the third to-be-welded edge 43 are welded in advance, and the sequence of the cross-symmetry spot welding is adopted, so that the positioning block 30 is prevented from being skewed after welding, such as the situation that one end is tilted upwards. Meanwhile, in order to avoid the influence of the increase of the tensile stress of the welding seams of the second to-be-welded edge 42 and the third to-be-welded edge 43 on the perpendicularity after the spot welding of the positioning block due to the increase of the gaps of the second to-be-welded edge 42 and the third to-be-welded edge 43 after the positioning block 30 is tightly propped against the air guide block, the embodiment adopts the technical scheme that the second to-be-welded edge 42 and the third to-be-welded edge 43 are firstly spot-welded at 2 points and then the first to-be-welded edge 41 is spot-welded at 3 points. By the welding method, the perpendicularity of the positioning block 30 and the air guide block can be controlled within a reasonable precision range.
As an alternative implementation of the foregoing embodiment, the specific step of welding the positioning block 30 and the air guiding plate 20 to form the air guiding plate, as shown in fig. 5 and 12, includes: first, performing lap welding on the second edge to be welded 42 and the welding seam of the third edge to be welded 43; wherein, the lap welding length of the second to-be-welded edge 42 is equal to the edge length of the second to-be-welded edge 42, and the lap welding length of the third to-be-welded edge 43 is equal to the edge length of the third to-be-welded edge 43; and then lap welding the first to-be-welded edge 41, wherein the lap welding length of the first to-be-welded edge 41 is equal to half of the edge length of the first to-be-welded edge 41 and is 1.5 times of the lap welding length of the second to-be-welded edge 42 and 1.5 times of the lap welding length of the third to-be-welded edge 43. Through the technical scheme, after the positioning block 30 and the air guide piece 20 are subjected to lap welding, the perpendicularity of the positioning block 30 and the air guide piece can be controlled within a reasonable precision range.
In general, when the first to-be-welded edge 41 is welded, the welding start point is one end of the first to-be-welded edge 41, and the end point is the midpoint of the first to-be-welded edge 41.
In some embodiments, to ensure the welding accuracy of the positioning block 30 and the wind guiding fin 20. The orthographic projection of the positioning block 30 on the air guiding plate 20 is an isosceles trapezoid structure. The included angles between the first side surface 32 and the second side surface 33 of the positioning block 30 and the first end surface 31 are 60 degrees, and the projection lengths of the formed second to-be-welded edge 42 and the formed third to-be-welded edge 43 on the first to-be-welded edge 41 are 1/6 of the projection length of the formed second to-be-welded edge 42 and the formed third to-be-welded edge 43 on the first to-be-welded edge 41. In this embodiment, the component forces of the second welding tensile stress f2 and the third welding tensile stress f3 in the direction perpendicular to the first end face 31 are preferably half of the first welding tensile stress f 1. The component forces of the second welding tensile stress f2 and the third welding tensile stress f3 in the direction parallel to the first end face 31 are equally inverted. Although welding tensile stress is generated on each side to be welded, the welding tensile stress can be basically balanced with each other, and the verticality of the positioning block 30 and the air guide block is effectively controlled within a reasonable precision range. In this embodiment, the structure of the positioning block 30 is beneficial to designing the weld structure, easy to implement, and beneficial to improving the welding efficiency and the welding precision.
As an optional implementation manner of the foregoing embodiment, the depth of the relief groove is defined as H, the thickness of the positioning block is defined as D1, the thickness of the air guiding sheet is defined as D2, and the following relational expression is satisfied among the depth of the relief groove, the thickness of the positioning block and the thickness of the air guiding sheet:
H＝(D1—D2)/2。
that is, the depth of the relief groove 11a is half the thickness of the positioning block 30 minus half the thickness of the air guiding plate 20. Because the first supporting surface and the second supporting surface which are oppositely arranged in the thickness direction of the air guide piece 20 are required to be propped against the magnetic yoke piece, the heights of the first supporting surface and the second supporting surface, which are protruded out of the positioning block 30, are preferably consistent, and the mass production of the accommodating grooves of the magnetic yoke piece is facilitated. Then, the depth of the relief groove 11a is set to be smaller than half of the thickness of the positioning block 30 by half of the thickness of the air guide plate 20, so as to release the positioning block 30.
The embodiment of the application can also provide a manufacturing tool 10 for manufacturing an air deflector, which comprises: a base plate 11, wherein the base plate 11 has a surface for placing the air guiding sheet 20; the bottom plate 11 is provided with a yielding groove 11a for placing the positioning block 30; and a limit structure 12, wherein the limit structure 12 is arranged on the bottom plate 11; when the air guiding plate 20 is placed on the surface, the limiting structure 12 limits the air guiding plate 20, so that the mounting hole 20a of the air guiding plate 20 can be communicated with the abdication groove 11a, and the positioning block 30 can be located in the abdication groove 11a and the mounting hole 20a at the same time. When the air guide piece 20 and the positioning block 30 are assembled, the yielding groove 11a on the manufacturing tool 10 provides a yielding space for the positioning block 30, so that the positioning block 30 protrudes out of the supporting surface of the air guide piece; the manufacturing tool 10 can improve the manufacturing precision of the air deflector; and this preparation frock 10 provides appurtenance for the preparation of aviation baffle, utilizes this preparation frock 10 can improve the preparation efficiency of aviation baffle.
Compared with the case of manufacturing the air deflector without using the manufacturing tool 10, the positioning block 30 is easy to incline. When the air deflector formed by manufacturing the manufacturing tool 10 is not arranged in the magnetic yoke ventilating duct, the fitting degree of the upper and lower supporting surfaces of the air guide piece 20 and the magnetic yoke piece is low, air leakage or air stringing is easy to occur, and the cooling of the magnetic pole coil is not facilitated.
The above describes in detail a manufacturing method and a manufacturing tool for an air deflector provided in the embodiments of the present application, and specific examples are applied herein to illustrate the principles and embodiments of the present invention, where the above description of the embodiments is only for helping to understand the method and core idea of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present invention, the present description should not be construed as limiting the present invention.
Claims (5)
1. The manufacturing method of the air deflector is characterized by comprising the following steps of:
providing a manufacturing tool, an air guide sheet and a positioning block; the manufacturing tool comprises a bottom plate and a limiting structure arranged on the bottom plate; a relief groove is formed in the bottom plate; the air guide piece is provided with a mounting hole for mounting the positioning block;
the air guide piece is placed on the surface of the bottom plate, limited by the limiting structure and communicated with the abdication groove;
placing the positioning block in the abdication groove and the mounting hole;
welding the positioning block and the air guide plate to form an air guide plate; the manufacturing tool further comprises a fixed block and a jacking block movably arranged on the fixed block, and the fixed block is fixedly connected to the bottom plate;
after the positioning block is placed in the abdication groove and the mounting hole and before the positioning block and the air guide sheet are welded to form the air guide plate, the manufacturing method further comprises the following steps:
the positioning block is abutted against the air guide plate by the jacking block;
the positioning block comprises a first end face, a first side face and a second side face which are oppositely arranged; the mounting hole is provided with a first hole wall, a second hole wall and a third hole wall;
when the positioning block is placed in the yielding groove and the mounting hole,
the first end face is connected with the first hole wall so that a first edge to be welded is formed between the positioning block and the air guide piece;
the first side surface is connected with the second hole wall so that a second edge to be welded is formed between the positioning block and the air guide piece;
the second side surface is connected with the third hole wall so that a third edge to be welded is formed between the positioning block and the air guide piece; the second to-be-welded edge and the third to-be-welded edge are symmetrically arranged by taking the perpendicular bisector of the first to-be-welded edge as a symmetrical axis; the welding the positioning block and the air guide piece to form an air guide plate comprises:
determining a first welding point and a second welding point on the second to-be-welded side, determining a third welding point and a fourth welding point on the third to-be-welded side, and determining a fifth welding point, a sixth welding point and a seventh welding point on the first to-be-welded side; the first welding spot and the third welding spot are symmetrically arranged by taking the perpendicular bisector as a symmetrical axis, the second welding spot and the fourth welding spot are symmetrically arranged by taking the perpendicular bisector as a symmetrical axis, the sixth welding spot and the seventh welding spot are symmetrically arranged by taking the perpendicular bisector as a symmetrical axis, and the fifth welding spot is positioned on the perpendicular bisector;
spot welding was performed in the following order: the first welding point, the fourth welding point, the third welding point, the second welding point, the fifth welding point, the sixth welding point and the seventh welding point.
2. The method of claim 1, wherein the wind-guiding sheet comprises a windward end; the limiting structure comprises a baffle;
the wind guide piece is arranged on the surface of the bottom plate and limited by the limiting structure, and the wind guide piece comprises:
and the baffle is abutted against the windward end.
3. The method of claim 2, wherein the wind deflector comprises a first sidewall and a second sidewall, the first sidewall being connected to the second sidewall by the windward end; the limiting structure further comprises at least two positioning columns;
the wind guide piece is arranged on the surface of the bottom plate and limited by the limiting structure, and the wind guide piece further comprises:
with at least a portion of two of the positioning posts abutting the first sidewall,
and utilizing a part of at least two positioning columns to abut against the second side wall.
4. The method of manufacturing of claim 1, wherein said welding said positioning blocks and said air guiding sheets to form an air deflector comprises:
respectively carrying out lap welding on the welding seams of the second to-be-welded edge and the third to-be-welded edge; the lap welding length of the second to-be-welded edge is equal to the edge length of the second to-be-welded edge, and the lap welding length of the third to-be-welded edge is equal to the edge length of the third to-be-welded edge;
and carrying out lap welding on the welding seam of the first to-be-welded edge, wherein the lap welding length of the first to-be-welded edge is equal to half of the edge length of the first to-be-welded edge and is 1.5 times of the lap welding length of the second to-be-welded edge and 1.5 times of the lap welding length of the third to-be-welded edge.
5. The method of claim 1, wherein the depth of the relief groove is defined as H, the thickness of the positioning block is defined as D1, the thickness of the air guiding plate is defined as D2,
the depth of the abdication groove, the thickness of the positioning block and the thickness of the air guide piece meet the following relation:
H＝(D1—D2)/2。
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