Method and apparatus for checking stator core alignment
View Patent ↗In one embodiment the present invention provides for a method for checking the alignment of a stator core that comprises placing a laser source 14 and a target 18 a given distance apart on a stator core 10 and activating the laser such that the laser strikes the target. Then measuring on the target where the laser strikes, and interpreting the measurement to determine any misalignment of the stator core in the given distance.
1. A method for checking the alignment of a stator core comprising:
placing a laser source and a target a given distance apart on a stator core;
activating said laser such that said laser strikes said target;
measuring on said target where said laser strikes; and
interpreting the measurement to determine any misalignment of said stator core in said given distance.
2. The method of claim 1 , wherein said laser source and said target are placed a given distance apart in a slot of said stator core.
3. The method of claim 1 , wherein said method is performed in multiple slots along the inner perimeter of said stator core to give multiple measurements which are then interpreted to determine any misalignment.
4. The method of claim 1 , wherein said laser projects a slit.
5. The method of claim 1 , wherein said target is an inverted cone.
6. The method of claim 5 , wherein said target further comprises gradients that estimate the amount of misalignment.
7. A method for checking the alignment of laminations being assembled into a stator core, comprising:
placing a laser in a slot in a first series of laminations;
placing a target in a matching slot in a second series of laminations;
projecting said laser to said target;
measuring where on said target said laser projection strikes;
interpreting said measurement for misalignment of said second series of laminations; and
correcting any misalignment by at least one of, re-aligning the second series of laminations and adjusting the next series of laminations to compensate for any misalignment.
8. The method of claim 7 , wherein said laser is placed in multiple slots in said first series of laminations and the method is repeated for multiple measurements.
9. The method of claim 7 , wherein multiple lasers are placed in multiple slots and projected onto multiple targets in matching slots to obtain multiple measurements.
10. The method of claim 7 , wherein said second series of laminations is a donut being added to an assembling stator core.
11. The method of claim 7 , wherein said laser and said target are held into the slots of said stator core by at least one of wedges, blocks, magnetics and friction.
12. The method of claim 7 , wherein said target further comprises gradients.
13. The method of claim 12 , wherein said gradients indicate a range of misalignment.