CN215967152U - Axial fan impeller welding position frock - Google Patents
Axial fan impeller welding position frock Download PDFInfo
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- CN215967152U CN215967152U CN202122359423.0U CN202122359423U CN215967152U CN 215967152 U CN215967152 U CN 215967152U CN 202122359423 U CN202122359423 U CN 202122359423U CN 215967152 U CN215967152 U CN 215967152U
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Abstract
The utility model provides an axial flow fan impeller welding and positioning tool, which relates to the technical field of axial flow fan manufacturing, and comprises a bottom plate, wherein a hub positioning mechanism and a blade positioning mechanism are arranged on the bottom plate; the blade positioning mechanism comprises a blade positioning column and a blade pressing device; the utility model can achieve the technical effects that: 1. positioning by adopting a positioning mandrel, a hub positioning disc, a blade positioning block and a positioning column ensures the centering of the hub shaft disc, the uniform distribution of blades and the accuracy of the angular position; 2. the hub and the shaft disc are positioned and fastened by fastening nuts, and the blades are pressed by a pressing device, so that the fixing process of positioning welding spots is saved, and the generation of spot welding defects is reduced; 3. the blade pressing device presses the blades on the positioning device through the contact surface of the rubber block, so that the blades are uniformly stressed, and the deformation and indentation of the blades are reduced; 4. the bottom of the bottom plate is additionally provided with 8 supports, so that the tool is convenient to transport.
Description
Technical Field
The utility model relates to the technical field of axial flow fan manufacturing, in particular to an axial flow fan impeller welding and positioning tool.
Background
The fan impeller is an important component part in a fan and comprises a hub and a plurality of blades, wherein the blades are uniformly distributed on the periphery of the hub. In order to ensure the stability of the connection between the blade and the hub, the blade is usually welded to the hub.
The impeller of the axial flow fan on the market at present has no assembly device during welding, and the uniform distribution of the blades and the accuracy of angles and positions cannot be ensured; a pressing device is not needed during welding, and welding deformation cannot be controlled; in the market, the impeller is welded by adopting a positioning welding spot for spot welding, the defects of cracks, incomplete fusion and the like are easy to occur in the spot welding process, and the operation is complex and time-consuming.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a welding and positioning tool for an axial flow fan impeller, which aims to solve the problem that the existing impeller blade is inconvenient to weld.
The utility model is realized by the following steps: an axial flow fan impeller welding positioning tool comprises a bottom plate, wherein a hub positioning mechanism and a blade positioning mechanism are arranged on the bottom plate;
the hub positioning mechanism comprises a positioning mandrel arranged in the center of the bottom plate, a hub positioning disc and a shaft disc penetrate through the positioning mandrel from bottom to top, a hub sleeve of the fan is arranged outside the hub positioning disc, the shaft disc is clamped in a central hole of the hub, an external thread is processed at the upper end of the positioning mandrel, and the upper end of the positioning mandrel is in threaded connection with a fastening nut;
the blade positioning mechanism comprises a blade positioning column and a blade pressing device;
the blade positioning columns are arranged in groups, each group of the blade positioning columns is annularly arranged on the bottom plate, each group of the blade positioning columns comprises an inner blade front positioning column, an inner blade rear positioning column and an outer blade positioning column, the inner blade front positioning column and the inner blade rear positioning column are close to the center of the bottom plate, the outer blade positioning columns are close to the edge of the bottom plate, and the inner sides of the blades are respectively abutted against the inner blade front positioning column, the inner blade rear positioning column and the outer blade positioning columns;
the blade pressing device comprises a base which is annularly and uniformly distributed on the bottom plate, a mounting plate is obliquely arranged at the top of the base, a hinge seat is arranged on the mounting plate, and a connecting plate, a handle, a pressing rod and a pressing head are arranged on the hinge seat;
the main body of the hinge seat is perpendicular to the mounting plate, a V-shaped pressing groove is formed in the upper portion of the hinge seat, hinge holes are formed in the upper ends of two V-shaped arms of the V-shaped pressing groove respectively, one end of the connecting plate is hinged to the hinge hole located on the outer side, and the other end of the connecting plate is hinged to the middle of the handle; the outer side end of the pressing rod is hinged to the other hinge hole and the inner side end of the handle, the pressing head is arranged on the inner side end of the pressing rod, the handle is pressed down, and the pressing head is abutted to the outer side face of the blade.
Preferably, the pressing head comprises a connecting rod connected with the pressing rod and an end head arranged at the bottom of the connecting rod.
Preferably, the compressing rod is provided with a strip hole, the connecting rod penetrates through the strip hole, and locking nuts are arranged on the upper side and the lower side of the compressing rod.
Preferably, the material of the end head is a rubber material.
Preferably, the side edge of the hub positioning disc is step-shaped, and the bottom edge of the impeller hub can abut against the step surface.
Preferably, the top parts of the inner side blade front positioning column, the inner side blade rear positioning column and the outer side blade positioning column are all in a half-round cap shape.
Preferably, a plurality of support columns are uniformly distributed at the bottom of the bottom plate.
Preferably, the number of the bases is the same as the number of the sets of the blade positioning columns.
By adopting the technical scheme, the utility model can achieve the technical effects that: 1. positioning by adopting a positioning mandrel, a hub positioning disc, a blade positioning block and a positioning column ensures the centering of the hub shaft disc, the uniform distribution of blades and the accuracy of the angular position; 2. the hub and the shaft disc are positioned and fastened by fastening nuts, and the blades are pressed by a pressing device, so that the fixing process of positioning welding spots is saved, and the generation of spot welding defects is reduced; 3. the blade pressing device presses the blades on the positioning device through the contact surface of the rubber block, so that the blades are uniformly stressed, and the deformation and indentation of the blades are reduced; 4. the bottom of the bottom plate is additionally provided with 8 supports, so that the tool is convenient to transport.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of FIG. 1 of the present invention;
fig. 3 is a schematic view of the structure of the blade pressing device of the present invention.
In the figure: 1-bottom plate, 2-location dabber, 3-wheel hub positioning disk, 4-reel, 5-wheel hub, 6-inboard blade front positioning post, 7-inboard blade rear positioning post, 8-outboard blade positioning post, 9-blade, 10-base, 11-mounting panel, 12-articulated seat, 13-connecting plate, 14-handle, 15-pressure bar, 16-pressure head, 161-connecting rod, 162-end, 17-V-arrangement hold-down groove, 18-rectangular hole, 19-support column.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 3, the utility model provides an axial flow fan impeller welding and positioning tool, which comprises a bottom plate 1, wherein a hub positioning mechanism and a blade positioning mechanism are arranged on the bottom plate 1.
The hub positioning mechanism comprises a positioning core shaft 2 arranged at the center of the bottom plate 1, a hub positioning disc 3 and a shaft disc 4 are arranged on the positioning core shaft 2 in a penetrating mode from bottom to top, and a hub 5 of the fan is sleeved outside the hub positioning disc 3. Furthermore, the side edge of the hub positioning disc 3 is step-shaped, and the bottom edge of the hub 5 can be abutted against the step surface. The outer diameter of the upper layer of the hub positioning disc 3 is the same as the inner diameter of the hub 5, and the hub positioning disc 3 plays a positioning role in positioning the hub 5. After the wheel hub 5 is placed, the shaft disc 4 is clamped in the central hole of the wheel hub 5, an external thread is processed at the upper end of the positioning core shaft 2, the upper end of the positioning core shaft 2 is in threaded connection with the fastening nut, the fastening nut is screwed, the shaft disc 4 is fastened in the central hole of the wheel hub 5, and the position of the wheel hub 5 is prevented from changing.
The blade positioning mechanism comprises a blade positioning column and a blade pressing device.
Wherein, the blade reference column sets up in groups, and each group's blade reference column is cyclic annular and arranges on bottom plate 1, and every group is including reference column 6, inboard blade back reference column 7 before the inboard blade that is close to bottom plate 1 center to and be close to the outside blade reference column 8 at 1 border of bottom plate, and the inboard butt of blade 9 is respectively on reference column 6, inboard blade back reference column 7 and outside blade reference column 8 before the inboard blade. Furthermore, the height of the rear positioning column 7 of the inner side blade is lower than the height of the other two positioning columns, the blade 9 is obliquely arranged, and three points on the inner side of the blade 9 are respectively abutted to the three positioning columns, so that the positioning purpose is achieved.
Furthermore, the top parts of the inner side blade front positioning column 6, the inner side blade rear positioning column 7 and the outer side blade positioning column 8 are all in a half-nut shape, so that the blade surface can be prevented from being scratched in a stress process.
The blade pressing device comprises a base 10 which is annularly and uniformly distributed on a bottom plate 1, wherein a mounting plate 11 is obliquely arranged at the top of the base 10, a hinge seat 12 is arranged on the mounting plate 11, and a connecting plate 13, a handle 14, a pressing rod 15 and a pressing head 16 are arranged on the hinge seat 12.
The inclination angle of the mounting plate 11 is the same as that of the blades 9, the main body of the hinge base 12 is perpendicular to the mounting plate 11, the upper portion of the hinge base 12 is provided with a V-shaped pressing groove 17, the upper ends of two V-shaped arms of the V-shaped pressing groove 17 are respectively provided with a hinge hole, and a connecting line between the two hinge holes is parallel to a radial line of the bottom plate 1. The connecting plate 13 is a strip-shaped plate, hinge holes are respectively arranged at two ends of the connecting plate 13, one end of the connecting plate 13 is hinged with the hinge hole positioned at the outer side, and the other end of the connecting plate is hinged with the middle part of the handle 14.
The pressing rod 15 is in a straight rod shape, two hinge holes are formed in the outer side end of the pressing rod 15, the outer side end of the pressing rod 15 is hinged to the other hinge hole of the V-shaped arm and the inner side end of the handle 14, the pressing head 16 is arranged on the inner side end of the pressing rod 15, the handle 14 is pressed down, and the pressing head 16 abuts against the outer side face of the blade 9 to position the outer side face of the blade 9.
Further, the pressing head 16 includes a connecting rod 161 connected to the pressing rod and an end 162 disposed at the bottom of the connecting rod 161, preferably, the end 162 is made of a rubber material, so as to avoid damage to the surface of the blade.
Furthermore, in order to make the device compress tightly effectually, blade closing device all adopts two hinge structure. The pressing rod 15 is provided with a long hole 18, the connecting rod 161 is inserted into the long hole 18, and lock nuts are provided on the upper and lower sides of the pressing rod 15, and the connecting rod 161 is fixed by the lock nuts.
Furthermore, a plurality of support columns 19 are uniformly distributed at the bottom of the bottom plate 1. The stability of the device is guaranteed, and the tool is convenient to transport.
Furthermore, the number of the bases 10 is the same as the number of the blade positioning columns, and each blade pressing device corresponds to one group of the blade positioning columns.
The working principle of the utility model is as follows: the hub positioning disc is placed on the hub, the shaft disc is placed in the center hole of the hub, and the position of the hub is fixed through the fastening nut. The blades are placed on each group of blade positioning columns one by one, and the accurate positioning of the angles and the positions of the blades is realized by setting different heights of the columns in each group of blade positioning columns. Then the blades are compressed by the blade compressing device, so that the uniform distribution of the blades and the accuracy of angles and positions are ensured.
The hub, the hub and the hub positioning disc are connected through the positioning mandrel, the hub is machined in a stretching and turning end face machining mode, the connecting face of the hub positioning disc and the connecting face of the positioning mandrel are machined, the connecting precision is guaranteed, and therefore the hub and the hub of the impeller are guaranteed to be centered; the blade is blanked and punched by a die, so that the through joint surface of the blade and the hub is tightly jointed; the fastening nuts are adopted to fasten the hub and the shaft disc, the blade positioning device and the blade pressing device are used to restrain the blades, the uniform distribution of the blades and the accuracy of angles and positions are guaranteed, the assembling efficiency is improved, the point fixing process is eliminated, the welding defects in the point fixing process are reduced, and the welding quality is improved.
The utility model can achieve the technical effects that: 1. positioning by adopting a positioning mandrel, a hub positioning disc, a blade positioning block and a positioning column ensures the centering of the hub shaft disc, the uniform distribution of blades and the accuracy of the angular position; 2. the hub and the shaft disc are positioned and fastened by fastening nuts, and the blades are pressed by a pressing device, so that the fixing process of positioning welding spots is saved, and the generation of spot welding defects is reduced; 3. the blade pressing device presses the blades on the positioning device through the contact surface of the rubber block, so that the blades are uniformly stressed, and the deformation and indentation of the blades are reduced; 4. the bottom of the bottom plate is additionally provided with 8 supports, so that the tool is convenient to transport.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. An axial flow fan impeller welding positioning tool is characterized by comprising a bottom plate, wherein a hub positioning mechanism and a blade positioning mechanism are arranged on the bottom plate;
the hub positioning mechanism comprises a positioning mandrel arranged in the center of the bottom plate, a hub positioning disc and a shaft disc penetrate through the positioning mandrel from bottom to top, a hub sleeve of the fan is arranged outside the hub positioning disc, the shaft disc is clamped in a central hole of the hub, an external thread is processed at the upper end of the positioning mandrel, and the upper end of the positioning mandrel is in threaded connection with a fastening nut;
the blade positioning mechanism comprises a blade positioning column and a blade pressing device;
the blade positioning columns are arranged in groups, each group of the blade positioning columns is annularly arranged on the bottom plate, each group of the blade positioning columns comprises an inner blade front positioning column, an inner blade rear positioning column and an outer blade positioning column, the inner blade front positioning column and the inner blade rear positioning column are close to the center of the bottom plate, the outer blade positioning columns are close to the edge of the bottom plate, and the inner sides of the blades are respectively abutted against the inner blade front positioning column, the inner blade rear positioning column and the outer blade positioning columns;
the blade pressing device comprises a base which is annularly and uniformly distributed on the bottom plate, a mounting plate is obliquely arranged at the top of the base, a hinge seat is arranged on the mounting plate, and a connecting plate, a handle, a pressing rod and a pressing head are arranged on the hinge seat;
the main body of the hinge seat is perpendicular to the mounting plate, a V-shaped pressing groove is formed in the upper portion of the hinge seat, hinge holes are formed in the upper ends of two V-shaped arms of the V-shaped pressing groove respectively, one end of the connecting plate is hinged to the hinge hole located on the outer side, and the other end of the connecting plate is hinged to the middle of the handle; the outer side end of the pressing rod is hinged to the other hinge hole and the inner side end of the handle, the pressing head is arranged on the inner side end of the pressing rod, the handle is pressed down, and the pressing head is abutted to the outer side face of the blade.
2. The axial flow fan impeller welding and positioning tool according to claim 1, wherein the pressing head comprises a connecting rod connected with the pressing rod and an end head arranged at the bottom of the connecting rod.
3. The axial flow fan impeller welding positioning tool according to claim 2, wherein a long hole is formed in the pressing rod, the connecting rod penetrates through the long hole, and locking nuts are arranged on the upper side and the lower side of the pressing rod.
4. The axial flow fan impeller welding positioning tool according to claim 2, wherein the end is made of rubber.
5. The axial flow fan impeller welding positioning tool according to claim 1, wherein the side edge of the hub positioning plate is step-shaped, and the bottom edge of the impeller hub can abut against the step surface.
6. The axial flow fan impeller welding and positioning tool according to claim 1, wherein the top portions of the inner side blade front positioning column, the inner side blade rear positioning column and the outer side blade positioning column are in a half-round cap shape.
7. The axial flow fan impeller welding positioning tool according to claim 1, wherein a plurality of support columns are uniformly distributed at the bottom of the bottom plate.
8. The axial flow fan impeller welding and positioning tool according to claim 1, wherein the number of the bases is the same as the number of the blade positioning columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122359423.0U CN215967152U (en) | 2021-09-28 | 2021-09-28 | Axial fan impeller welding position frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122359423.0U CN215967152U (en) | 2021-09-28 | 2021-09-28 | Axial fan impeller welding position frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215967152U true CN215967152U (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122359423.0U Active CN215967152U (en) | 2021-09-28 | 2021-09-28 | Axial fan impeller welding position frock |
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| Country | Link |
|---|---|
| CN (1) | CN215967152U (en) |
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2021
- 2021-09-28 CN CN202122359423.0U patent/CN215967152U/en active Active
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