CN111181328A - Stator core excircle processing frock - Google Patents
Stator core excircle processing frock Download PDFInfo
- Publication number
- CN111181328A CN111181328A CN201911310267.XA CN201911310267A CN111181328A CN 111181328 A CN111181328 A CN 111181328A CN 201911310267 A CN201911310267 A CN 201911310267A CN 111181328 A CN111181328 A CN 111181328A
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- China
- Prior art keywords
- stator core
- mandrel
- boss
- fastener
- expanding tire
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A stator core excircle processing tool relates to the technical field of generator stator processing. The stator core excircle processing tool comprises a mandrel, an expanding tire, a clamping piece and a fastener, wherein the expanding tire is arranged at the periphery of the mandrel by one end of the mandrel, the fastener is tightly connected with the end part of the mandrel and used for axially compressing the expanding tire, the other end of the mandrel is connected with the clamping piece, and the clamping piece is far away from one end of the mandrel and used for being fixed with a machine tool. The turning processing of stator core excircle can be realized to this stator core excircle processing frock to improve the cooperation precision of stator core and frame.
Description
Technical Field
The invention relates to the technical field of generator stator machining, in particular to a stator core excircle machining tool.
Background
The military special generator comprises a stator, a rotor, an end cover, a base and the like, and is tightly installed with the outer cylinder of the base through a stator core so as to improve the overall ventilation and heat dissipation performance of the generator and greatly reduce the volume of the generator. And such military special generators usually adopt a direct-welded stator core structure.
However, in the manufacturing process of the direct welding type stator core, after the stator punching sheets are laminated, the stator punching sheets are usually fixed in an assembly welding mode, and then the subsequent processes such as winding, paint dipping and the like are performed, and finally the stator punching sheets are pressed into the inner part of the generator base cylinder through an oil press. However, the production process easily causes uneven welding seams after stator assembly welding, so that the stator core is not tightly attached to the base cylinder. In the prior art, the weld joint is usually processed by a manual polishing mode aiming at the problems, but the manual polishing mode is easy to cause the risks of poor consistency and difficult guarantee of size precision, and the production efficiency is also seriously influenced.
Disclosure of Invention
The invention aims to provide a stator core excircle machining tool which can realize turning machining of a stator core excircle, so that the matching precision of a stator core and a base is improved.
The embodiment of the invention is realized by the following steps:
the invention provides a stator core excircle processing tool which comprises a mandrel, an expanding tire, a clamping piece and a fastener, wherein the expanding tire is sleeved on the periphery of the mandrel through one end of the mandrel, the fastener is tightly connected to the end part of the mandrel and used for axially pressing the expanding tire, the other end of the mandrel is connected with the clamping piece, and one end, far away from the mandrel, of the clamping piece is used for being fixed with a machine tool. The turning processing of stator core excircle can be realized to this stator core excircle processing frock to improve the cooperation precision of stator core and frame.
Optionally, the mandrel has a conical section, the inner hole of the expanding tire is a conical hole, the conical section is matched with the conical hole, and the fastener is connected to the small-diameter end of the conical section.
Optionally, the circumferential wall of the expanding tire is uniformly distributed with a plurality of expanding grooves along the axial direction of the expanding tire.
Optionally, the expansion grooves are axially communicated with one end surface of the expansion tire to form an opening, and the openings of two adjacent expansion grooves are located on the opposite end surface of the expansion tire.
Optionally, the clamping piece comprises a clamping disc and a connecting disc connected with the clamping disc, the connecting disc is connected with the mandrel, and the clamping disc is used for being fixed with the machine tool.
Optionally, a mounting hole is formed in the center of the connecting disc, and the mandrel is connected with the connecting disc hot sleeve through the mounting hole.
Optionally, the dabber includes the body, certainly the one end of body is toward the circular cone section of outer extension and certainly the other end of body is toward the first boss of outer extension, the body the circular cone section and first boss is coaxial setting, just the diameter of body is greater than the diameter of first boss, first boss passes through the mounting hole with the connection pad heat is overlapped and is connected, the circular cone section through big diameter end with this body coupling, the little diameter end of circular cone section with the fastener is connected.
Optionally, one end of the mandrel, which is close to the fastener, is provided with a second boss, the second boss and the mandrel are coaxially arranged, the diameter of the second boss is smaller than that of the mandrel, and the mandrel is connected with the fastener through the second boss.
Optionally, the fastener comprises a nut in threaded connection with the second boss.
Optionally, the fastener still includes the increased pressure board, the increased pressure board with the nut is located in proper order on the second boss, the increased pressure board passes through the nut axial compresses tightly the child that rises.
The beneficial effects of the invention include:
the application provides a stator core excircle processing frock, it includes the dabber, rises the child, clamps and adorns piece and fastener, and the periphery of dabber is located to the child cover that rises. So, this application can be located the child that rises with the stator core cover that needs processing excircle on (the child initial condition that rises is lax state), then rises the child through rising to rise and makes child and stator core fastening connection that rises, and rethread fastener locks the child that rises, installs the stator core excircle processing frock of stator core on the lathe in the lump at last to accomplish stator core's excircle processing. The tooling for machining the outer circle of the stator core can assist in achieving turning of the outer circle of the stator core, so that the matching precision of the stator core and a machine base is improved, and the machining efficiency of machining the outer circle of the stator core is improved to a certain extent.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is one of schematic structural diagrams of a stator core outer circle machining tool provided in an embodiment of the present invention;
fig. 2 is a second schematic structural diagram of a stator core outer circle machining tool according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an expanding tire according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a mandrel provided in an embodiment of the present invention.
Icon: 100-machining a stator core excircle; 10-a mandrel; 11-a first boss; 12-a body; 13-a conical section; 14-a second boss; 20-expanding the tire; 21-a conical bore; 22-a tensioning groove; 221-opening; 30-a clip; 31-chucking a tray; 32-a connecting disc; 321-mounting holes; 40-a fastener; 41-a nut; 42-pressing plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
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 or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and fig. 2, the present embodiment provides a stator core outer circle machining tool 100, where the stator core outer circle machining tool 100 includes a mandrel 10, an expanding tire 20, a clamping member 30, and a fastening member 40, where the expanding tire 20 is sleeved on the periphery of the mandrel 10 by one end of the mandrel 10, the fastening member 40 is fastened to an end of the mandrel 10 for axially pressing the expanding tire 20, the other end of the mandrel 10 is connected to the clamping member 30, and one end of the clamping member 30, which is away from the mandrel 10, is used for fixing to a machine tool.
It should be noted that, firstly, the outer circle machining tool 100 for the stator core of the present application depends on the expander 20 to fix the generator stator core on the mandrel 10 by a radial elastic expansion method, so as to implement the outer circle turning of the generator stator core. Thus, the stator core excircle processing tool 100 provided by the application can meet the excircle machining requirement of the stator core, and can be suitable for the excircle processing of the stator cores of various specifications due to the expansibility of the expanding tire 20.
Second, the fastener 40 is for axially pressing the expanding tire 20 so that the expanding tire 20 is axially fixed, thereby enhancing the reliability of the expanding tire 20.
Thirdly, the clamping piece 30 is arranged at one end of the mandrel 10 far away from the fastener 40, one end of the clamping piece 30 is connected with the mandrel 10, and the other end of the clamping piece can be fixed on a machine tool, so that the turning of the stator core is realized. It should be understood that the structural form of the clamping member 30 can be selected by those skilled in the art according to the requirement, as long as the clamping member 30 can be connected with the mandrel 10 and can be fixed on a machine tool for facilitating the turning process, and the specific structure is not limited.
In summary, the stator core outer circle machining tool 100 provided by the present application includes a mandrel 10, an expanding tire 20, a clamping member 30 and a fastening member 40, and the expanding tire 20 is sleeved on the outer periphery of the mandrel 10. So, this application can be located on the child 20 that rises (the child 20 initial condition that rises is lax state) with the stator core cover that needs processing excircle, then makes child 20 and stator core fastening connection rise through rising and rising child 20 that rises, and rethread fastener 40 locks child 20 that rises, installs on the lathe in the lump with the stator core excircle processing frock 100 of well assembled stator core at last to accomplish stator core's excircle processing. This stator core excircle processing frock 100 can assist the car processing that realizes the stator core excircle to improve the cooperation precision of stator core and frame, and improved the machining efficiency of stator core excircle processing to a certain extent.
Additionally, in this embodiment, the fastener 40 of the present application is removably attached to the mandrel 10. Therefore, the stator core excircle processing tool 100 provided by the application is processed in batches at the stator, the stator core that the processing was accomplished is easily and conveniently torn out to the mode that fastener 40 was demolishd to the accessible, then changes the next stator core of treating to process and continues to process, need not to adjust the jig, and need not to consider stator core's specification, and work efficiency is higher.
Referring to fig. 3 and fig. 4, in order to facilitate radial tensioning of the expander 20, in the present embodiment, the mandrel 10 has a conical section 13, the inner hole of the expander 20 is a conical hole 21, the conical section 13 is matched with the conical hole 21, and the fastening member 40 is connected to the small-diameter end of the conical section 13. The inner hole of the expanding tire 20 is designed into a conical hole 21, so that the inner hole of the expanding tire 20 can be tightly combined with the mandrel 10, the expanding tire 20 can be radially expanded to a certain degree, and the limiting of the expanding tire 20 can be realized by the characteristic that the two ends of the cone have different sizes. It should be understood that the fastener 40 is provided at the small diameter end of the conical section 13 to prevent the expansion tire 20 from axially retreating in the direction of the small diameter end to some extent.
Further, in order to make the child 20 that rises have great inflation volume to make the stator core excircle processing frock 100 of this application can be applicable to the stator of more different specifications, the perisporium of the child 20 that rises of this application has a plurality of grooves 22 that rise along its axial equipartition. It should be understood that, on the basis that the expanding tire 20 has the conical hole 21, the expanding groove 22 may be additionally provided, so that the expanding tire 20 can be expanded better. In the embodiment, the expansion grooves 22 are uniformly arranged along the axial direction of the expansion tire 20, but in other embodiments, the expansion grooves 22 may also be uniformly arranged on the peripheral wall of the expansion tire 20, and the arrangement direction of the expansion grooves 22 may have a certain included angle with the axis of the expansion tire 20. Those skilled in the art can select a suitable arrangement as required.
In order to make the stress on all parts of the expander 20 more balanced, thereby improving the fixing precision of the stator core. In this embodiment, the tension grooves 22 are axially communicated with one end surface of the expanding tire 20 to form openings 221, and the openings 221 of two adjacent tension grooves 22 are located on the opposite end surfaces of the expanding tire 20.
In the present embodiment, the clamping member 30 includes a clamping disk 31 and a connecting disk 32 connected to the clamping disk 31, the connecting disk 32 is connected to the spindle 10, and the clamping disk 31 is used for fixing to a machine tool. Therefore, when the machining is completed, the clamping disc 31 and the connecting disc 32 can be detached, so that the fixture 100 for machining the excircle of the stator core, which is used for removing the clamping disc 31, is separated from the clamping disc 31, the device can be conveniently disassembled, the fixture 100 for machining the excircle of the stator core can be fixed on the clamping disc 31 and a machine tool when the excircle is machined next time, and only the connecting disc 32 is required to be connected to the clamping disc 31. Illustratively, the clamping disk 31 and the connecting disk 32 of the present application are connected by bolts.
Illustratively, in the present embodiment, the center of the connecting disc 32 is provided with a mounting hole 321, and the mandrel 10 is connected with the connecting disc 32 through the mounting hole 321 in a shrink fit manner.
Further, the dabber 10 of this application also can be including body 12, the conical section 13 of extending outward from the one end of body 12 and the first boss 11 of extending outward from the other end of body 12, conical section 13 and first boss 11 are coaxial setting, and the diameter of body 12 is greater than the diameter of first boss 11, first boss 11 passes through mounting hole 321 and is connected with connection pad 32 heat jacket, conical section 13 is connected with body 12 through big diameter end, the little diameter end and the fastener 40 of conical section 13 are connected.
It should be noted that, firstly, the body 12, the conical section 13 and the first boss 11 are coaxially arranged, and the diameter of the body 12 is greater than that of the first boss 11, so that the body 12 can play a transition connection role, the first boss 11 can be connected with the connecting disc 32 through the mounting hole 321 in a heat sleeving manner, and the small-diameter end of the conical section 13 can be connected with the fastening piece 40. It should be understood that the first boss 11 is provided only for matching with the mounting hole 321 to realize the shrink fit connection, and those skilled in the art can also make appropriate adjustments to the structure of the mandrel 10 if other connection methods are selected. For example, a key connection or the like may be used between the mandrel 10 and the connecting plate 32.
Secondly, the diameter of body 12 is greater than the diameter of first boss 11, can make the terminal surface of connection pad 32 directly butt in the body 12 is close to the terminal surface department of first boss 11 to the teacher is convenient for spacing fixed by connecting pad 32.
In this embodiment, one end of the mandrel 10 close to the fastener 40 may be provided with a second boss 14, the second boss 14 is coaxially disposed with the mandrel 10, the diameter of the second boss 14 is smaller than that of the mandrel 10, and the mandrel 10 is connected to the fastener 40 through the second boss 14. For example, the outer wall of the second boss 14 may be threaded, and the bore of the fastener 40 may also be threaded, such that the second boss 14 is threadably coupled to the fastener 40.
It should be understood that in the present embodiment, the end of the mandrel 10 near the fastener 40 may be provided with the second boss 14, and the mandrel 10 may further include a body 12, a conical section 13 extending outward from one end of the body 12, and a first boss 11 extending outward from the other end of the body 12. In this case, the first boss 11, the body 12, the conical section 13 and the second boss 14 should be connected in sequence and coaxially disposed. In this embodiment, the first boss 11, the body 12, the conical section 13 and the second boss 14 should be an integral piece.
In this embodiment, the fastener 40 includes a nut 41, and the nut 41 is threadedly coupled to the second boss 14. The fastener 40 adopts the nut 41, so that the structure of the stator core excircle processing tool 100 is simplified, and the processing and manufacturing cost is reduced.
In order to make the stress of the expanding tire 20 more balanced when the nut 41 axially fastens the expanding tire 20, the fastening member 40 further includes a pressure plate 42, the pressure plate 42 and the nut 41 are sequentially sleeved on the second boss 14, and the pressure plate 42 axially presses the expanding tire 20 through the nut 41.
The above description is only an alternative embodiment of the present invention and is not intended to limit the present invention, and various modifications and variations of the present invention may occur to those skilled in the art. 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 stator core excircle processing tool is characterized by comprising a mandrel, an expanding tire, a clamping piece and a fastener, wherein the expanding tire is arranged at the periphery of the mandrel through one end of the mandrel in a sleeved mode, the fastener is tightly connected to the end portion of the mandrel and used for axially compressing the expanding tire, the other end of the mandrel is connected with the clamping piece, and one end, far away from the mandrel, of the clamping piece is used for being fixed with a machine tool.
2. The tooling for machining the outer circle of the stator core according to claim 1, wherein the mandrel is provided with a conical section, an inner hole of the expanding tire is a conical hole, the conical section is matched with the conical hole, and the fastener is connected to a small-diameter end of the conical section.
3. The tooling for processing the outer circle of the stator core according to claim 1 or 2, wherein a plurality of tensioning grooves are uniformly distributed on the circumferential wall of the expanding tire along the axial direction of the expanding tire.
4. The tooling for machining the outer circle of the stator core according to claim 3, wherein the tensioning grooves are axially communicated with one end face of the expanding tire to form openings, and the openings of two adjacent tensioning grooves are located on the opposite end faces of the expanding tire.
5. The tooling for machining the outer circle of the stator core according to claim 1, wherein the clamping piece comprises a clamping disc and a connecting disc connected with the clamping disc, the connecting disc is connected with the mandrel, and the clamping disc is used for being fixed with the machine tool.
6. The tooling for machining the outer circle of the stator core according to claim 5, wherein a mounting hole is formed in the center of the connecting disc, and the mandrel is connected with the connecting disc in a hot-sleeved mode through the mounting hole.
7. The stator core excircle processing frock of claim 6, characterized in that, the dabber includes the body, from the one end of body towards the circular cone section of outer extension and from the other end of body towards the first boss of outer extension, the body, circular cone section and first boss are coaxial setting, just the diameter of body is greater than the diameter of first boss, first boss pass through the mounting hole with the connection pad heat is overlapped and is connected, circular cone section pass through big diameter end with this body coupling, the little diameter end of circular cone section with the fastener is connected.
8. The stator core excircle processing frock of claim 1, characterized in that, the dabber is close to the one end of fastener is equipped with the second boss, the second boss with the dabber is coaxial setting, and the diameter of second boss is less than the diameter of dabber, the dabber pass through the second boss with the fastener is connected.
9. The tooling for machining the outer circle of the stator core according to claim 8, wherein the fastener comprises a nut, and the nut is in threaded connection with the second boss.
10. The stator core excircle processing frock of claim 9, characterized in that, the fastener still includes the increased pressure board, the increased pressure board with the nut is located in proper order on the second boss, the increased pressure board passes through the nut axial compresses tightly the child that rises.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911310267.XA CN111181328A (en) | 2019-12-18 | 2019-12-18 | Stator core excircle processing frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911310267.XA CN111181328A (en) | 2019-12-18 | 2019-12-18 | Stator core excircle processing frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111181328A true CN111181328A (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911310267.XA Pending CN111181328A (en) | 2019-12-18 | 2019-12-18 | Stator core excircle processing frock |
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| Country | Link |
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| CN (1) | CN111181328A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039462A (en) * | 2021-10-29 | 2022-02-11 | 江西东涵科技协同创新有限公司 | Automatic permanent magnet motor stator processing frock of centering |
| CN114102063A (en) * | 2021-12-01 | 2022-03-01 | 扬州恒众精密机械有限公司 | Finish machining process of stator and rotor for automobile engine |
| CN114850926A (en) * | 2022-05-26 | 2022-08-05 | 威伊艾姆电机(中国)有限公司 | Tooling for processing excircle of stator core with winding of rib external cooling motor |
-
2019
- 2019-12-18 CN CN201911310267.XA patent/CN111181328A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114039462A (en) * | 2021-10-29 | 2022-02-11 | 江西东涵科技协同创新有限公司 | Automatic permanent magnet motor stator processing frock of centering |
| CN114102063A (en) * | 2021-12-01 | 2022-03-01 | 扬州恒众精密机械有限公司 | Finish machining process of stator and rotor for automobile engine |
| CN114850926A (en) * | 2022-05-26 | 2022-08-05 | 威伊艾姆电机(中国)有限公司 | Tooling for processing excircle of stator core with winding of rib external cooling motor |
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