CN210374947U - Miniature motor school bent frock of axle - Google Patents
Miniature motor school bent frock of axle Download PDFInfo
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- CN210374947U CN210374947U CN201921596772.0U CN201921596772U CN210374947U CN 210374947 U CN210374947 U CN 210374947U CN 201921596772 U CN201921596772 U CN 201921596772U CN 210374947 U CN210374947 U CN 210374947U
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Abstract
The utility model belongs to the technical field of miniature direct current motor, concretely relates to curved frock of micro motor school axle, include: the fixture comprises a fixture base, an installation frame positioned on the fixture base and an independently arranged dial indicator; the motor rotor of the micro motor is suitable for erecting the motor rotor on the installation frame through a rotating shaft; and the dial indicator is suitable for checking the end shaft bending degree and/or the middle shaft bending degree of the rotating shaft. The shaft bending degree checking process of the rotating shaft of the motor rotor can be completed before assembly, the motor rotor with the bent shaft is prevented from being assembled, the cost is saved, and the product yield is improved; the motor can also be tested after the assembly is finished, so that whether the phenomena of large motor vibration or large no-load current and the like are caused by shaft bending or not can be confirmed, the repair is tried, and the rejection rate of the motor rotor is reduced.
Description
Technical Field
The utility model belongs to the technical field of miniature direct current motor, concretely relates to curved frock of micro motor school axle.
Background
In the assembly process of the miniature motor, the rotor shaft is bent to be a common problem of the motor, and the motor has the expression of high running noise and high no-load current. The rotor shaft bending can cause the defects of poor stability of the motor, easy abrasion of a bearing, short service life and the like. In the prior art, an efficient detection method and an efficient correction method are not available for checking and correcting the shaft bending degree of the motor rotor, and whether the problem is caused by the shaft bending or not can not be further determined for the motor which is not qualified after assembly, so that the bent motor rotor can only be scrapped after being installed, and a large amount of materials are wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a micro motor school curved frock of axle detects the electric motor rotor who erects on the installation frame through the amesdial to the tip axle camber and/or the middle part axle camber of check-up pivot.
In order to solve the technical problem, the utility model provides a curved frock of micro motor school axle, include: the fixture comprises a fixture base, an installation frame positioned on the fixture base and an independently arranged dial indicator; the motor rotor of the micro motor is suitable for erecting the motor rotor on the installation frame through a rotating shaft; and the dial indicator is suitable for checking the end shaft bending degree and/or the middle shaft bending degree of the rotating shaft.
Further, one end of the rotating shaft protrudes out of the mounting frame and extends outwards to form a measuring part, so that the measuring part is suitable for a dial indicator to measure circular jumping of the measuring part, namely, the end part shaft bending degree of the rotating shaft is verified.
Further, the miniature motor shaft-correcting bending tool further comprises: a hollow straightening rod arranged independently; the hollow correcting rod is suitable for being sleeved on the measuring part to correct the end part of the rotating shaft.
Furthermore, the dial indicator is also suitable for detecting the circular jumping property of a rotor core of the motor rotor so as to check the middle shaft bending degree of the rotating shaft; the miniature motor shaft bending correcting tool further comprises: a hammer disposed independently; and knocking the middle part of the rotor iron core through a hammer to correct the middle shaft camber of the rotating shaft.
Further, a V-shaped frame mounting surface is arranged on the tool base; the mounting frame includes: the two V-shaped frames are respectively arranged on the installation surface of the I-shaped frame; and the distance between the two V-shaped frames is adjustable.
Furthermore, a plurality of positioning holes are formed in the mounting surface of the V-shaped frame; the bottom of the V-shaped frame is provided with an installation slot; and the bolts penetrate through the mounting slotted holes and the corresponding positioning holes so as to fix the V-shaped frame on the tool base.
The utility model has the advantages that the utility model discloses a miniature motor school axle bending frock detects the electric motor rotor who erects on the installation frame through the amesdial to the axle bending of check pivot tip and/or well middle part, can accomplish the check-up process of the axle bending of electric motor rotor pivot before the assembly, avoids the electric motor rotor of axle bending to assemble, has saved the cost, has improved the product yield; the motor rotor repairing method can also be used for further determining the reason of the motor problem after the assembly is finished so as to determine whether the phenomena of large motor vibration or large no-load current and the like are caused by shaft bending or not, repair and reduce the rejection rate of the motor rotor.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
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 embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the micro-motor shaft bending checking tool for checking shaft bending of the end of the rotating shaft;
FIG. 2 is a schematic view of the micro-motor shaft bending checking tool for checking shaft bending in the middle of the rotating shaft according to the present invention;
FIG. 3 is a schematic structural view of the hollow straightening rod of the present invention;
FIG. 4 is a schematic structural view of the hammer of the present invention;
in the figure; the tool comprises a tool base 1, a V-shaped frame mounting surface 11, a positioning hole 111, a mounting frame 2, a V-shaped frame 21, a mounting groove hole 211, a bolt 22, a motor rotor 3, a rotating shaft 31, a measuring part 311, a rotor iron core 32, a dial indicator 4, a hollow correcting rod 5 and a hammer 6.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 and 2, the micro-motor shaft bending correction tool of the present embodiment includes: the fixture comprises a fixture base 1, an installation frame 2 positioned on the fixture base 1 and a dial indicator 4 which is independently arranged; the motor rotor 3 of the micro motor is suitable for erecting the motor rotor 3 on the mounting frame 2 through a rotating shaft 31; and the dial indicator 4 is suitable for checking the shaft bending degree of the end part of the rotating shaft and/or the shaft bending degree of the middle part of the rotating shaft.
In general, the motor rotor 3 comprises: a rotating shaft 31 and a rotor core 32 sleeved on the middle part of the rotating shaft 31. When the shaft is checked for the bending degree, the motor rotor is generally disassembled, so that the rotor core 32 is exposed outside, the end part and the middle part of the rotating shaft are conveniently checked, and the shaft bending phenomenon does not exist on the whole rotating shaft.
The micro motor shaft bending correcting tool provided by the embodiment detects the motor rotor erected on the installation frame through the dial indicator so as to correct the shaft bending degree of the end part and/or the middle part of the rotating shaft, can complete the shaft bending degree correcting process of the rotating shaft of the motor rotor before assembly, avoids assembling the bent motor rotor, saves the cost and improves the product yield; the motor rotor repairing method can also be used for further determining the reason of the motor problem after the assembly is finished so as to determine whether the phenomena of large motor vibration or large no-load current and the like are caused by shaft bending or not, repair and reduce the rejection rate of the motor rotor.
As an alternative embodiment for verifying the shaft end camber.
Referring to fig. 1, one end of the rotating shaft 31 protrudes out of the mounting frame 2 and extends outward to form a measuring portion 311, so that the dial indicator 4 is suitable for measuring the circular runout of the measuring portion 311, namely, the end shaft bending of the rotating shaft is verified.
Alternatively, see fig. 1, the dial indicator 4 is detected near the free end 1/3 of the measuring portion 311.
Optionally, as shown in fig. 1 and fig. 3, the shaft bending calibrating tool for the micro motor further includes: a hollow straightening rod 5 arranged independently; the hollow correcting rod 5 is suitable for being sleeved on the measuring part 311 so as to correct the end part of the rotating shaft.
The specific operation of correcting (i.e., both checking and correcting) the shaft end camber is as follows:
as shown in fig. 1 and fig. 3, the dial gauge 4 is manually pressed vertically from above at about 1/3 from the free end of the distance measuring portion 311, the initial reading of the dial gauge 4 is maintained at 0.01mm, the motor rotor is rotated once, and the reading jitter of the dial gauge 4 is observed. If the reading exceeds 0.03mm, the axial bending of the rotating shaft at the end part is seriously protruded outwards, and the correction is needed. The correction process is as follows: the hollow correcting rod 5 can be manually sleeved on the measuring part 311, and then downward force is applied to adjust the shaft bending. And (4) after the correction, retesting by using a dial indicator, and repeating the correction process if the end part still has the shaft bend.
As an alternative embodiment for verifying the shaft camber in the middle of the shaft.
Referring to fig. 2 and 4, the dial indicator 4 is further adapted to detect the circular runout of the rotor core 32 of the motor rotor 3 to check the middle shaft camber of the rotating shaft; the miniature motor shaft bending correcting tool further comprises: a hammer 6 provided independently; and knocking the middle part of the rotor core through a hammer 6 to correct the middle shaft camber of the rotating shaft. The motor rotor is typically disassembled so that the rotor core 32 is exposed to verify the mid-shaft camber of the shaft.
The concrete operation of correcting (i.e. two processes of checking and correcting) the shaft camber at the middle part of the rotating shaft is as follows:
as shown in fig. 2 and 4, the dial indicator 4 is manually placed on the surface of the rotor core 32 and vertically pressed against the rotor core, the initial reading of the dial indicator 4 is kept at 0.01mm, and the reading of the dial indicator 4 is observed to jump when the motor rotor rotates for one circle. If the reading exceeds 0.03mm, the shaft bending at the middle part of the rotating shaft protrudes outwards seriously, and needs to be corrected. The correction process is as follows: the shaft bending can be adjusted by manually tapping the middle position of the rotor core several times with the hammer 6. And (4) after the correction, retesting by using a dial indicator, and repeating the correction process if the axial bending exists at the position.
As an alternative embodiment of the mounting frame.
Referring to fig. 1, a V-shaped frame mounting surface 11 is arranged on the tool base 1; the mounting frame 2 includes: two V-shaped frames 21 respectively arranged on the V-shaped frame mounting surface 11; and the distance between the two V-shaped frames 21 is adjustable.
Specifically, the V-shaped frame mounting surface 11 should ensure that the two V-shaped frames 21 are located on the same horizontal plane, and the V-shaped portions of the two V-shaped frames 21 are suitable for placing the rotating shaft 31, so as to ensure that the two ends of the rotating shaft are located on the same horizontal plane (i.e., the motor rotor is horizontally placed), which can improve the calibration accuracy of the shaft camber, and can prevent the rotating shaft from deviating and causing measurement errors of the dial indicator when the motor rotor is rotated.
Optionally, a plurality of positioning holes 111 are formed in the V-shaped frame mounting surface 11; the bottom of the V-shaped frame 21 is provided with a mounting slot hole 211; and the bolts 22 pass through the mounting slots 211 and the corresponding positioning holes 111 to fix the V-shaped frame 21 on the tooling base 1. The mounting groove holes 211 correspond to different positioning holes 111, and then the bolts 22 are used for locking, so that the distance between the two V-shaped frames 21 can be adjusted, the rotor motors with different specifications and sizes can be suitable, and the applicability of the micro motor shaft bending correction tool is improved.
In summary, the micro motor shaft bending correcting tool detects the motor rotor erected on the installation frame through the dial indicator to correct the shaft bending degree of the end part and/or the middle part of the rotating shaft, can complete the shaft bending degree correcting process of the rotating shaft of the motor rotor before assembly, avoids the assembly of the bent motor rotor, saves the cost and improves the product yield; the motor rotor repairing method can also be used for further determining the reason of the motor problem after the assembly is finished so as to determine whether the phenomena of large motor vibration or large no-load current and the like are caused by shaft bending or not, and repairing and reducing the rejection rate of the motor rotor; the end part shaft bending degree of the rotating shaft can be verified and corrected by combining the dial indicator, the measuring part of the rotating shaft and the hollow correcting rod; the middle shaft camber of the rotating shaft can be checked and corrected by combining the dial indicator, the rotor core and the hammer, the end shaft camber and the middle shaft camber of the rotating shaft are finally corrected, and the yield of the motor rotor is increased before assembly or the integral shaft camber of the motor rotor is confirmed after rotation; the two ends of the rotating shaft are located on the same horizontal plane through the V-shaped frame mounting surface and the V-shaped frame, so that the motor rotor is horizontally placed, and the checking precision of the shaft bending degree can be improved. Therefore, the micro motor shaft bending checking tool has the advantages of high checking precision, simple correcting operation, wide application range and the like, and can be used for checking shaft bending of motor rotors of various micro motors.
The components selected for use in the present application (components not illustrated for specific structures) are all common standard components or components known to those skilled in the art, and the structure and principle thereof can be known to those skilled in the art through technical manuals or through routine experimentation.
In the description of the embodiments of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides a curved frock of micro motor school axle which characterized in that includes:
the fixture comprises a fixture base, an installation frame positioned on the fixture base and an independently arranged dial indicator;
the motor rotor of the micro motor is suitable for erecting the motor rotor on the installation frame through a rotating shaft; and
the dial indicator is suitable for checking the end shaft bending degree and/or the middle shaft bending degree of the rotating shaft.
2. The micro-motor shaft bending correction tool according to claim 1,
one end of the rotating shaft protrudes out of the installation frame and extends outwards to form a measuring part so as to be suitable for a dial indicator to measure the circular jumping property of the measuring part, namely, the end part shaft bending degree of the rotating shaft is verified.
3. The micro-motor shaft bending correction tool according to claim 2,
the miniature motor shaft bending correcting tool further comprises: a hollow straightening rod arranged independently;
the hollow correcting rod is suitable for being sleeved on the measuring part to correct the end part of the rotating shaft.
4. The micro-motor shaft bending correction tool according to claim 1,
the dial indicator is also suitable for detecting the circular jumping property of a rotor core of the motor rotor so as to check the middle shaft bending degree of the rotating shaft;
the miniature motor shaft bending correcting tool further comprises: a hammer disposed independently; and
the middle part of the rotor core is knocked by a hammer so as to correct the middle shaft camber of the rotating shaft.
5. The micro-motor shaft bending correction tool according to claim 1,
the tool base is provided with a V-shaped frame mounting surface;
the mounting frame includes: the two V-shaped frames are respectively arranged on the installation surface of the I-shaped frame; and
the distance between the two V-shaped frames is adjustable.
6. The micro-motor shaft bending correction tool according to claim 5,
a plurality of positioning holes are formed in the mounting surface of the V-shaped frame;
the bottom of the V-shaped frame is provided with an installation slot; and
and the bolts penetrate through the mounting slotted holes and the corresponding positioning holes so as to fix the V-shaped frame on the tooling base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921596772.0U CN210374947U (en) | 2019-09-24 | 2019-09-24 | Miniature motor school bent frock of axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921596772.0U CN210374947U (en) | 2019-09-24 | 2019-09-24 | Miniature motor school bent frock of axle |
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| Publication Number | Publication Date |
|---|---|
| CN210374947U true CN210374947U (en) | 2020-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921596772.0U Active CN210374947U (en) | 2019-09-24 | 2019-09-24 | Miniature motor school bent frock of axle |
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| CN (1) | CN210374947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431363A (en) * | 2020-04-30 | 2020-07-17 | 江苏省亘虹机电有限公司 | Rotor dynamic balance measuring instrument capable of measuring circle run-out |
-
2019
- 2019-09-24 CN CN201921596772.0U patent/CN210374947U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431363A (en) * | 2020-04-30 | 2020-07-17 | 江苏省亘虹机电有限公司 | Rotor dynamic balance measuring instrument capable of measuring circle run-out |
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