CN216645670U - Brushless motor stator core holding power check out test set - Google Patents
Brushless motor stator core holding power check out test set Download PDFInfo
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- CN216645670U CN216645670U CN202123378109.3U CN202123378109U CN216645670U CN 216645670 U CN216645670 U CN 216645670U CN 202123378109 U CN202123378109 U CN 202123378109U CN 216645670 U CN216645670 U CN 216645670U
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Abstract
The utility model discloses a brushless motor stator core retention force detection device which comprises a rack, a workpiece mounting seat, a pressing cap seat, a pressure sensor, a displacement sensor and a driving mechanism, wherein the workpiece mounting seat is arranged on the rack, the driving mechanism is arranged at the top of the rack, the pressing cap seat is connected with the driving mechanism through the pressure sensor, the pressing cap is detachably arranged on the pressing cap seat, the driving mechanism is used for driving the pressing cap to vertically move, the pressure sensor monitors the current pressure value, and the displacement sensor measures the downward displacement distance of the pressing cap. The stator casing and the iron core mounting reliability detection device is simple in structure and convenient to use, the mounting reliability of the stator casing and the iron core is detected by utilizing the displacement sensor and the pressure sensor, and the detection efficiency of workers is greatly improved. The workpiece mounting seat adopts a positioning base and a positioning rod for double positioning, so that the stator is ensured to be mounted in place. The replaceable workpiece mounting seat and the replaceable pressing cap enable the application range of the equipment to be wider.
Description
Technical Field
The utility model relates to the field of motor production, in particular to a brushless motor stator core retention force detection device.
Background
The stator of the brushless motor is different from the brush motor in that the coil winding of the stator of the brushless motor is arranged on a stator iron core of the stator of the brushless motor, the stator iron core wound with the coil winding is pressed to a specific position in a shell through size matching, and the stator iron core deviates in the shell of the motor due to manufacturing deviation or poor installation position or retention force or operation vibration and the like, so that motor faults are caused, and even potential safety hazards exist. Therefore, after the stator core is pressed into the shell, the position and the holding force of the core need to be detected, and the risk of failure of the motor in use is prevented. In the prior art, a manual tool is generally used for measuring the position and the holding force of the iron core respectively, and in view of the complex test, poor stability and low accuracy, most of the tests are destructive and only can be performed by sampling, so that the efficiency is low, or the tests are not performed, and the conditions of inaccurate test or inaccurate test can increase the energy consumption and reduce the service life of the motor during use, and the associated fault hidden danger is more likely to cause safety risks.
SUMMERY OF THE UTILITY MODEL
Aiming at overcoming the defects in the prior art, the utility model mainly aims to overcome the defects in the prior art, and discloses brushless motor stator core holding force detection equipment which comprises a rack, a workpiece mounting seat, a pressing cap seat, a pressure sensor, a displacement sensor and a driving mechanism, wherein the workpiece mounting seat is arranged on the rack, the driving mechanism is arranged at the top of the rack, the pressing cap seat is connected with the driving mechanism through the pressure sensor, the pressing cap is detachably arranged on the pressing cap seat, the driving mechanism is used for driving the pressing cap to vertically move, the pressure sensor monitors the current pressure value, and the displacement sensor measures the downward displacement distance of the pressing cap.
Furthermore, the pressing cap is connected with the pressing cap seat through four screws, and the four screws are distributed in a square shape.
Furthermore, the detection equipment further comprises a guide rod, a guide sleeve and a connecting plate, wherein the guide sleeve is arranged on the rack, the guide rod is arranged on the guide sleeve in a sliding mode, and the lower end of the guide rod is connected with the pressing cap seat through the connecting plate.
Furthermore, the displacement sensor is a grating ruler, and a measuring head of the grating ruler is connected with the guide rod.
Further, the workpiece mounting seat comprises a positioning base and a positioning rod, and the positioning rod is coaxially arranged on the positioning base.
Furthermore, the positioning rod is axially provided with a through hole, the positioning base is fixed on the bottom plate of the rack through a screw, and the screw is hidden in the through hole.
Furthermore, a positioning groove matched with the workpiece mounting seat is concavely arranged on a bottom plate of the rack.
The utility model has the following beneficial effects:
the stator mounting device is simple in structure and convenient to use, the mounting reliability of the shell and the iron core of the stator is detected by utilizing the displacement sensor and the pressure sensor, and the detection efficiency of workers is greatly improved. The workpiece mounting seat adopts a positioning base and a positioning rod for double positioning, so that the stator is ensured to be mounted in place. The replaceable workpiece mounting seat and the replaceable pressing cap enable the application range of the equipment to be wider.
Drawings
Fig. 1 is a schematic perspective view of a brushless motor stator core retention force detection apparatus according to the present invention;
fig. 2 is a schematic perspective view of a brushless motor stator core retention force detection apparatus after stator assembly;
the reference numbers are as follows:
1. the device comprises a rack, 2, a workpiece mounting seat, 3, a pressing cap, 4, a pressing cap seat, 5, a pressure sensor, 6, a displacement sensor, 7, a driving mechanism, 8, a guide rod, 9, a guide sleeve, 10, a connecting seat, 11, a positioning groove, 21, a positioning base, 22 and a positioning rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
A brushless motor stator holding force detection device is shown in figures 1-2 and comprises a frame 1, a workpiece mounting seat 2, a pressing cap 3, a pressing cap seat 4, a pressure sensor 5, a displacement sensor 6 and a driving mechanism 7, wherein the workpiece mounting seat 2 is arranged on a bottom plate of the frame 1 and used for positioning a stator placing position; actuating mechanism 7 sets up at the top of frame 1, presses cap seat 4 to be connected with actuating mechanism 7 through pressure sensor 5, presses cap 3 demountable installation on pressing cap seat 4, utilizes actuating mechanism 7 drive to press 3 vertical movements of cap, and pressure sensor 5 monitors the current pressure value, and displacement sensor 6 measures and presses the downward displacement distance of cap. When the stator is used, the stator is arranged on the workpiece mounting seat 2, and the driving mechanism 7 controls the pressing cap 3 to move downwards and act on an iron core in the stator. Wherein the driving mechanism 7 selects a double-force cylinder.
In one embodiment, as shown in fig. 1-2, the pressing cap 3 is connected to the pressing cap seat 4 by four screws, and the four screws are distributed in a square shape; and then guarantee to press cap 3 and press cap seat 4 stability of being connected, press cap 3 simultaneously to be detachable construction, can change the pressure cap 3 of adaptation according to the size of stator.
In an embodiment, as shown in fig. 1-2, the detection apparatus further includes a guide rod 8, a guide sleeve 9, and a connection plate 10, the guide sleeve 9 is disposed on the frame 1, the guide rod 8 is slidably disposed on the guide sleeve 9, and a lower end of the guide rod 8 is connected to the cap pressing base 4 through the connection plate 10. The guide rod 8 is used for synchronously guiding the pressing cap 3 to move downwards, so that the stability of downward movement of the pressing cap 3 is ensured. Preferably, the displacement sensor 6 adopts a grating ruler, the grating ruler is vertically arranged on the rack, and a head of the grating ruler is connected with the guide rod 8, so that when the press cap 3 moves downwards, the grating ruler is driven to measure a displacement value.
In one embodiment, as shown in fig. 1-2, the workpiece mount 2 includes a positioning base 21 and a positioning rod 22, and the positioning rod 22 is coaxially disposed on the positioning base 21. The housing of the stator is radially positioned by the positioning base 21, the upper end surface of the positioning base 21 is not in contact with the lower end of the iron core in the stator, and the positioning rod 22 positions the iron core in the stator. The stator is positioned doubly through the positioning base 21 and the positioning rod 22, so that the stator is installed in place.
In the above embodiment, as shown in fig. 1-2, the positioning rod 22 is axially provided with a through hole, the positioning base is fixed on the bottom plate of the rack by a screw, and the screw is hidden in the through hole.
In one embodiment, as shown in fig. 1-2, a positioning groove 11 is recessed in the bottom plate of the frame 1 to match with the workpiece mounting seat 2.
The method for testing the holding force of the stator of the brushless motor according to the present invention will be further described with reference to specific devices, as shown in fig. 1-2,
firstly, a stator is placed on a workpiece mounting seat 2, a driving mechanism 7 drives a pressing cap 3 to move downwards and act on an iron core in the stator; after the pressure cap contacts the iron core of the stator, measuring the current pressure value through the pressure sensor 5 until a first group of test pressure values F1 reaches a preset in-place pressure F1, measuring a displacement value H1 of the pressure cap by the displacement sensor 6, wherein the distance from the lower end of the initial position of the pressure cap to the upper end of the bottom plate of the frame 1 is constant H0, comparing a first group of in-place heights P2 which are H0-H1 with P0 through P2, and if P2 is in the range of P0, determining that the stator is qualified and in place; otherwise, the equipment alarms, and the stator is not installed in place; wherein, the stator is not installed in place and comprises stator placing deviation or stator shell and iron core assembling deviation.
And after the pressure sensor is qualified, the pressure cap 3 is driven to press downwards again until the second group of test pressure values F2 of the pressure sensor 5 reach the qualified pressure F2, at the moment, the current displacement value is measured through the displacement sensor 6, and the second group of in-place heights P3 are obtained through calculation. Comparing the P3 with the P2, detecting whether the position of the iron core of the stator and the shell is deviated under the qualified pressure, and if the value of P3 is in the qualified range of P2, the stator is qualified; otherwise, the product is not qualified.
The above are merely preferred embodiments of the present invention, and are not intended to limit the scope of the utility model; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the utility model.
Claims (7)
1. The utility model provides a brushless motor stator core holding power check out test set, its characterized in that includes frame, workpiece setting seat, presses the cap, presses cap seat, pressure sensor, displacement sensor and actuating mechanism, workpiece setting seat sets up in the frame, actuating mechanism sets up the top of frame, press cap seat pass through pressure sensor with actuating mechanism connects, press cap demountable installation in press cap seat is last, utilize the actuating mechanism drive press the vertical removal of cap, pressure sensor monitors the current pressure value, displacement sensor measures press cap displacement distance downwards.
2. The apparatus of claim 1, wherein the press cap is connected to the press cap base by four screws, and the four screws are distributed in a square shape.
3. The apparatus of claim 1, further comprising a guide rod, a guide sleeve and a connecting plate, wherein the guide sleeve is disposed on the frame, the guide rod is slidably disposed on the guide sleeve, and a lower end of the guide rod is connected to the cap holder through the connecting plate.
4. The apparatus of claim 3, wherein the displacement sensor is a grating scale, and a measuring head of the grating scale is connected to the guide rod.
5. The apparatus of claim 1, wherein the workpiece mounting seat comprises a positioning base and a positioning rod, and the positioning rod is coaxially disposed on the positioning base.
6. The apparatus of claim 5, wherein the positioning rod is axially provided with a through hole, the positioning base is fixed on the bottom plate of the frame by a screw, and the screw is hidden in the through hole.
7. The apparatus of claim 1, wherein a positioning groove is formed in a bottom plate of the frame and engaged with the workpiece holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123378109.3U CN216645670U (en) | 2021-12-29 | 2021-12-29 | Brushless motor stator core holding power check out test set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123378109.3U CN216645670U (en) | 2021-12-29 | 2021-12-29 | Brushless motor stator core holding power check out test set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216645670U true CN216645670U (en) | 2022-05-31 |
Family
ID=81744954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123378109.3U Active CN216645670U (en) | 2021-12-29 | 2021-12-29 | Brushless motor stator core holding power check out test set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216645670U (en) |
-
2021
- 2021-12-29 CN CN202123378109.3U patent/CN216645670U/en active Active
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